BrainMap

Mrs. Elena Matei

Dr.

Senior Researcher I - INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Other affiliations

Researcher - INSTITUTUL NATIONAL DE CERCETARE- DEZVOLTARE PENTRU MICROTEHNOLOGIE - IMT BUCURESTI INCD ()

Researcher

Web of Science ResearcherID: http://www.researcherid.com/rid/G-1626-2011

Curriculum Vitae (27/02/2024)

Expertise & keywords

Multifunctional optoelectrical sensor based on two-dimensional MoS2 atomically thin layers grown by selective nucleation Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2021-2457 2022 - 2024

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation:

Project website: https://infim.ro/en/project/multifunctional-optoelectrical-sensor-based-on-two-dimensional-mos2-atomically-thin-layers-grown-by-selective-nucleation/

Abstract:

Optoelectrical multifunctional sensors will be obtained based on selective nucleation and growth of two-dimensional 2D-MoS2 atomically thin layers on SiO2/Si patterned substrates, by using Physical Vapor Deposition method. The substrate patterning will be performed by deposition of Mo pads before growth of MoS2 flakes. The precise localization of selectively grown 2D-MoS2 flakes allows the fabrication of the optoelectrical sensors by deposition of metallic contacts using photolithographic technique with alignment to the patterns of the substrate. The atomically thin 2D-MoS2 layers are very sensitive to external excitation as for example light illumination or adsorbed molecules on the 2D-MoS2 free layer surface. Using the Si substrate as gate electrode, the (photo)sensitivity of the device can be controlled and enhanced by field effect. Based on the high sensitivity expressed by electric and photoelectric behaviour, the 2D-MoS2 optoelectrical sensors are recommended for many practical applications, as for example biosensors (protein detection, DNA compatibility, acetone in human breath for diabetes, etc) and chemical sensors for pollution monitoring. The validation of the optoelectrical sensor demonstrator in this project according to TRL 3 includes the testing experiments on spectral photocurrent, as well as on electrostatic doping in 2D-MoS2 layers by field effect and adsorbed acetone molecules.

Nanocomposites based on recycled cellulose and carbon nanohorns for building materials with improved fire action resistance Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2021-3156 2022 - 2024

Role in this project:

Coordinating institution: UNIVERSITATEA BABES BOLYAI

Project partners: UNIVERSITATEA BABES BOLYAI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); ACADEMIA DE POLITIE "ALEXANDRU IOAN CUZA" (RO)

Affiliation:

Project website: http://icdisna.institute.ubbcluj.ro/grants/recell4safe/indexRO.html

Abstract:

The aim of the project is to develop thermal-insulator nanocomposite materials based on recycled cellulose and carbon nanohorns in order to be used as buildings materials. By using these porous composites we propose to improve both the fire resistance and mechanical properties so that the project implementation will lead to an improvement of the civil protection level. The nanocomposites will be made of cellulose extracted from sawdust (as the porous composite matrix), phosphoric acid (as phosphorous source, element that decreases the flame spread), carbon nanohorns (as char carbon source and consolidating agent for the matrix pores) and epoxy resin (as mechanically consolidating binder and secondary carbon source for char formation). The synergetic action of these components is expected to lead to improved fire protection when the obtained monolithic nanocomposite samples will be involved in vertical flame combustion tests (exposure of the samples, placed at a certain distance, to a controlled flame, for a certain period of time). The project proposes to start from the TRL 2 level and to arrive at the TRL 4 level. The results obtained on the developed materials will be compared with other commercial available building materials with increased fire resistance as well as with improved mechanical and thermal insulation properties. The achieved results will be promoted to relevant stakeholders interested on the project topic.

Metal-oxide-metal nanowires for sensors development Call name: P 4 - Proiecte de Cercetare Exploratorie, 2020
PN-III-P4-ID-PCE-2020-2291 2021 - 2023

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation:

Project website: https://infim.ro/en/project/metal-oxide-metal-nanowires-for-sensors-development/

Abstract:

In this project we aim to obtaining multisegment nanowires with an architecture consisting of metal I-(metal II oxide)-metal I (MOM), starting from nanowires of type metal I-metal II-metal I, by combining electrodeposition in a template with a selective oxidation process using electrochemical, thermal or plasma techniques. Finally, we will aim to modulate the electrical properties of MOM nanowires by the preparation process parameters and identify the possible applications. The transport characteristics of the devices based on MOM nanowires shall be influenced by the electrodeposition process’ parameters but also by the oxidation process parameters. Moreover, by conveniently tailoring the processes the amount of point defects will be controlled, this being an essential parameter in the transport properties. Another one is the quality of the contact. The transport characteristics of the devices based on MOM nanowires will be influenced by the electrodeposition process’ parameters but also by the oxidation process parameters and by their conveniently tailoring, the amounts of point defects will be controlled. It is expected that by using nanowires of this structure type to enhance the functionality and performance of the devices.

3. Complex training facility for development, testing and validation of reaction means of special intervention forces against asymmetrical threats and risks in urban areas Call name: P 2 - SP 2.1 - Soluţii - 2021
PN-III-P2-2.1-SOL-2021-2-0167 2021 - 2023

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); Academia Tehnică Militară „FERDINAND I” (RO); INSTITUTUL NAŢIONAL DE CERCETARE - DEZVOLTARE PENTRU SECURITATE MINIERĂ ŞI PROTECŢIE ANTIEXPLOZIVĂ - INSEMEX PETROŞANI (RO); EXATEL S.R.L. (RO); DELTAMED SRL (RO)

Affiliation:

Project website: https://infim.ro/project/33SOL-AsimRisc/

Abstract:

An innovative prototype for a complex simulator aimed to the training, development, testing and validation of the reaction means specific to the Special Police Forces belonging to the Ministry of Internal Affairs of Romania, with respect to asymmetrical risks and threats in urban areas is proposed to be realized within this project. According to specific requests and imposed reference terms, the proposed training simulator will include as main components: (i) a simulation module specific to interventions to dynamic asymmetric threats, (ii) a simulation module for manual intervention (defusing) on explosive devices, (iii) a proper system for intervention in urban area aimed to neutralization of the improvised explosive devices, by using reduced charges. The specific objectives are related to the development of each component of the complex simulator.

Molecularly imprinted nanofluidic biosensors for the detection of human derived proteins Call name: P 3 - SP 3.2 - Proiecte ERA.NET
ERANET-MANUNET-III-MINaFBioS 2020 - 2022

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO); INTELECTRO IAŞI SRL (RO); NAITEC (FUNDACION I+D AUTOMOCION Y MECATRONICA) (ES); MATEPRINCS SL (ES)

Affiliation:

Project website: https://infim.ro/en/project/molecularly-imprinted-nanofluidic-biosensors-for-the-detection-of-human-derived-proteins/

Abstract:

MINaFBioS intends to develop nanofluidic architectures embedded within nanoelectrodes in order to fabricate a biosensor for human proteins. MINaFBioS will simulate nanofluidic architectures of assemblies of conducting polymers doped with ceramic nanotubes able to enhance optimal delivery of the target molecule from the bulk solution to the sensing surfaces. The project will perform 2D and 3D design of nanofluidic architectures associated to ceramic nanotubes assemblies’ technology and formulate recommendation for micro-manufacturing. Physico-chemical characterization of the nanofluidic architectures associated to ceramic nanotubes assemblies will be performed. MINaFBioS will use, for generating the nanochanels features, special ceramic nanotubes and their assemblies to be produced and tailored by the project partners and used for biosensors applications. The project will develop tailored electrodes by assembling conducting polymers doped with ceramic nanotubes with tailored nanofluidic features and graphene. The project intends to associate the assemblies of conducting polymers and graphene, and to generate specificity to certain human derived proteins. MINaFBioS will perform the electrochemical simulation, design and evaluation of integrated nanofluidic sensing technology and achieve the laboratory proof of concept. Finally, the project will develop a biological sensor for the detection of human derived proteins with innovative aiming to develop and to validate at laboratory level.

Development of doped vanadium oxide/graphene composites for ultra-performance batteries and supercapacitors by physical vapour deposition for sustainable and eco-friendly energy storage applications Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2019-4519 2020 - 2022

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: https://infim.ro/en/project/development-of-doped-vanadium-oxide-graphene-composites-for-ultra-performance-batteries-and-supercapacitors-by-physical-vapour-deposition-for-sustainable-and-eco-friendly-energy-storage-applications/

Abstract:

Energy storage plays an important role in the modern world. One of the main trends that drive energy storage development is the rise of electrical devices (e.g. smart phones, smart watches, e-books, smart keys), internet of Things (IoT) in our daily life. Despite their great success, lithium ion batteries (LIBs) still need improvements in energy density, fast charge capabilities, cyclic durability and cost. LIBs are not fully safe in certain conditions and the commercial failure of Samsung Galaxy Note 7 in 2016 is an incontestable example. Extensive efforts have been devoted to either improve LiBs by replacing the commercial cathode (e.g. LiCoO2) or by designing new batteries without Lithium (Li) (e.g. Al, Mg, Na, Zn batteries) responding to the concern about the limited Li resource. New devices are required to be more sustainable and greener with respect to our environment. In this context, vanadium oxides, graphene and their related compounds are nowadays the most appealing materials for applications in energy harvesting.

VANABATSUP project intends to synthesize, test and develop advanced batteries or super capacitors based on doped vanadium oxide/graphene composites as sustainable, eco-friendly and ultra-performance storage resources. Despite their good promises, the commercialization of hybrids vanadium oxides-graphene based composites is hampered by various obstacles including fastidious synthesis methods, including the current use of graphene oxide which can lose its efficiency due to a tendency to aggregate. Recently, the project leader has demonstrated not only the possibility to synthesis few layers of graphene by physical vapor deposition (PVD) method, but also shown their applicability as electrochemical devices. A recent review underlined that those graphene layers have not yet been tested for energy storage application. Therefore, VANABATSUP intends to fill this gap and aims to propose alternative cathodes for energy storage application.

Intelligent therapies for non-communicable diseases based on controlled release of pharmacological compounds from encapsulated engineered cells and targeted bionanoparticles Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0697 2018 - 2021

Role in this project: Key expert

Coordinating institution: INSTITUTUL DE BIOLOGIE SI PATOLOGIE CELULARA ,,NICOLAE SIMIONESCU''

Project partners: INSTITUTUL DE BIOLOGIE SI PATOLOGIE CELULARA ,,NICOLAE SIMIONESCU'' (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL DE CHIMIE MACROMOLECULARA "PETRU PONI" (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.icbp.ro/static/en/en-networking_grants-grants-national_grants/intera.html

Abstract:

Non-communicable diseases (atherosclerosis, diabetes, obesity), a major cause of mortality, are characterized by associated inflammatory processes. The complex project INTERA aims to develop innovative therapeutic methods to ameliorate the pathological progression by reducing the inflammatory process. The multidisciplinary studies proposed by INTERA can create and define new nano- or micro-medical devices usable for smart and innovative anti-inflammatory therapies. INTERA includes 4 projects: (1) Encapsulation of genetically manipulated eukaryotic cells for controlled release of pharmacologically active products; (2) Development of a 3D platform designed for pre-clinical drug testing composed of cells incorporated into three-dimensional bio-matrices; (3) Intelligent nanobioparticles designed for bioactive compounds vectoring to pathological sites for vascular inflammation targeting. (4) Polymeric conjugates for efficiently inducing the expression of genes of interest with applicability in cellular therapy. The consortium consists of 4 partner research units - two institutes of the Romanian Academy (IBPCNS, ICMP), a university (UPB) and a national CD Institute (INCDFM) with good territorial coverage (Bucharest-Ilfov-Iasi). Predicted Indicators: 10 new R & D jobs, 8 ISI articles, 4 patent applications, 8 new technologies, 7 new service offers posted on the ERRIS platform. Institutional development: the new competences and the improvement of existing ones in partner units will attract the attention of the economic environment towards a better correlation of scientific and economic interests and better valorization in the field of drug science. From a social point of view, institutional development will lead to lowering the cost of these pathologies through new therapeutic approaches, more accessible to the population and hence, improving the quality of life.

The usage of composite materials with graphene oxide for improving the performance of building and installation elements against fire action in order to ensure the protection of life in case of fire Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0350 2018 - 2021

Role in this project: Key expert

Coordinating institution: ACADEMIA DE POLITIE "ALEXANDRU IOAN CUZA"

Project partners: ACADEMIA DE POLITIE "ALEXANDRU IOAN CUZA" (RO); UNIVERSITATEA BABES BOLYAI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://go4life.granturi.ubbcluj.ro/

Abstract:

The choice and the usage of materials in construction building shall take into account requirements concerning resistance, stability and fire safety criteria, as defined in Law no. 10/1995 regarding quality in construction. In this context, the widespread use of polymer, wood or drywall materials in construction or installations should take into account the major drawbacks of high flammability and low fire resistance of these materials.

The project proposes to acquire, characterize and test the fire protection of advanced materials, for construction and installations, with improved performance in fire action (for the purpose of protecting life) and with high economic potential (which can relaunch the profile industries in Romania), namely polystyrene (PS), polyvinyl chloride (PVC), drywall (GC), wooden chipboard (PAL) and (non-) functionalized graphene oxide (GO/FGO) with amines, organic phosphorus oligomers /phosphorus acidic, organic compounds rich in phosphorus and nitrogen (hexachlorocyclotriphosphazene) and hydroxyethyl acrylate, or mixtures of GO/FGO with melamine or epoxy resins. With this approach, the project is part of one of European Union's main research topics, namely testing/using graphene materials. The project has a new scientific/technical novelty at national and European level by the study of fire action behavior, by modeling and numerical simulation, under natural conditions, of the advanced materials obtained within the project.

The proposed research is based on the collaboration between the research groups from AP-FP, with expertise in the assessment of fire-fighting materials, from UBB, with expertise in obtaining (by a patented method) and morpho-structural characterizing of GO and carbonic composites, and from INCDFM, respectively, with expertise in obtaining and characterizing of the polymers and their composites.

NEW METHODS OF DIAGNOSIS AND TREATMENT: CURRENT CHALLENGES AND TECHNOLOGIC SOLUTIONS BASED ON NANOMATERIALS AND BIOMATERIALS Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0062 2018 - 2021

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE IN DOMENIUL PATOLOGIEI SI STIINTELOR BIOMEDICALE "VICTOR BABES" (RO); UNIVERSITATEA DE MEDICINA SI FARMACIE "CAROL DAVILA" (RO); UNIVERSITATEA DE MEDICINA SI FARMACIE "GRIGORE T. POPA" DIN IAŞI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE CHIMICO - FARMACEUTICA - I.C.C.F. BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO); UNIVERSITATEA TRANSILVANIA BRASOV (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://infim.ro/en/project/sanomat/

Abstract:

The project will develop novel conceptual and functional solutions of biomedical devices for treatment, reinforcement/repair/replacement (of human tissues) and diagnosis based on nanostructured and/or biocompatible materials, with high attractivity and certain potential for technology transfer to industry. The experience of the interdisciplinary consortium will allow a passage from concepts of nanomaterials and biomaterials with extended and/or complementary functional features to implementation to new biomedical applications of great interest: (i) antitumoral therapeutic systems (by localized magnetic hyperthermia, photodynamic therapy and drug delivery); (ii) biocompatible compounds with enhanced antimicrobial efficacy; (iii) stent or vein/arterial filters implants based on ferromagnetic shape-memory alloys (with the advantage of repositioning without the need of new invasive interventions); (iv) personalized bone regenerative implants (i.e. porous ceramic scaffolds for bone tissue engineering; dental implants with rapid osseointegration); (v) (bio)sensors for monitoring the bioavailability of pharmaceutical compounds and detecting the reactive oxygen species and their biologic effect; and (vi) correlation of physico-chemical properties with clinical investigations for two types of aerosols (salt particles and essential oils), and their prospective coupling with possible synergistic effects. The synergic development of the institutional capacity of the project partners will be achieved by: creating new jobs and purchasing new equipment and software, providing technical/scientific assistance to the emerging institutions, initiating and fostering collaborations with partners from industry in view of technology transfer, and increasing the international visibility of the involved institutions by capitalizing on the obtained research results. The project will create the core of the first national cluster in the field of healthcare technologies.

New advanced nanocomposites. Technological developments and applications Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0871 2018 - 2021

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU OPTOELECTRONICA INOE 2000 INCD (RO); UNIVERSITATEA DE VEST TIMISOARA (RO); ACADEMIA ROMANA FILIALA TIMISOARA (RO); UNIVERSITATEA BABES BOLYAI (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA TEHNICA-IFT IASI (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); INSTITUTUL NATIONAL DE CERCETARE- DEZVOLTARE PENTRU MICROTEHNOLOGIE - IMT BUCURESTI INCD (RO); UNIVERSITATEA "DUNAREA DE JOS" (RO); UNIVERSITATEA TRANSILVANIA BRASOV (RO); Ministerul Apararii Nationale prin Centrul de Cercetare Stiintifica pentru Aparare CBRN si Ecologie (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://infim.ro/project/kuncser_noi_directii_de_dezvoltare_tehnologica_si_utilizare_nanocompozite_avansate_47pccdi_2018

Abstract:

The development of complex nanocomposite materials consisting of different matrices (polymer-like, oxides, intermetallics, liquids) functionalized by different nasnostructured additions (carbon allotropes, magnetic nanoparticles with different organizations, nanostructured semiconductors, etc.) is the aim of this project. The unique combinations of interacting nanophases offeres to the hybrid nanocomposite material new or enhanced proprieties of high interest for applications. In this context, according to the previous experience of the involved teams, the complex project (formed by 4 component projects) is focused on the development of new optimized nanocomposite systems to be included in experimental demonstrators or final products to be transferred to economical companies. The project will contribute both to an increased scientific visibility of the partners as well as to enhancing the institutional performances by the development of new technical and scientific capacities.

Technologic paradigms in synthesis and characterization of variable dimensionality systems Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0152 2018 - 2021

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEHNOLOGII CRIOGENICE SI IZOTOPICE - I.C.S.I. RAMNICU VALCEA (RO); UNIVERSITATEA DE VEST TIMISOARA (RO); INSTITUTUL NATIONAL DE CERCETARE- DEZVOLTARE PENTRU MICROTEHNOLOGIE - IMT BUCURESTI INCD (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA TEHNICA-IFT IASI (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://infim.ro/project/vardimtech/, http://infim.ro/project/vardimtech-en

Abstract:

Last decades brought a considerable development of technologies based on ordered systems. Starting with semiconductor physics and photovoltaics, technologies soon evolved towards the utilisation on large scale of thin films and of surface / interface properties. Example go nowadays from data storage and readout (electrostatic or magnetic memories, giant magnetoresistance) to catalysis, gas sensors or photocatalysis (surface phenomena), and towards interfaces with biological matter (biosensors, templates for tissue reconstruction, interfaces between biological electrical signals and microelectronics). In Romania, crystal growth is performed since half a century; nevertheless, during the last years these activities fade out and need to be seriously reinforced, especially with the advent of new laser and detector technologies required by the Extreme Light Infrastructure facilities. Also, surface science started to be developped seriously only during the last decade, together with techniques involving self-organized nanoparticles, nanoparticle production etc. The main goal of this Project is to gather the relevant experience from the five partners, namely the experience in crystal growth from the University of Timișoara, with the surface science, nanoparticle and nanowire technologies developped by NI of Materials Physics, the cryogenic and ultrahigh vacuum techniques provided by the NI for Cryogenic and Isotopic Technologie, and the experience in ordered 2D systems (graphene and the like) owned by the NI for Microtechnologies (IMT). This common agenda will result in a coherent fostering of technologies relying on ordered systems of variable dimensionalities: 0D i.e. clusters or nanoparticles, including quantum dots; 1D i.e. free and supported nanowires and nanofibers; 2D: surfaces, interfaces and graphene-like systems; and 3D crystals of actual technological interest, together with setting up new ultrahigh vacuum, surface science and electron spectroscopy techniques.

Integrated system for rapid response to CBRNE incidents Call name: P 2 - SP 2.1 - SOLUȚII - 7 - Sistem integrat pentru intervenţia rapidă la incidente CBRNE
PN-III-P2-2.1-SOL-2017-07-0086 2017 - 2020

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH (RO); INSTITUTUL NAŢIONAL DE CERCETARE - DEZVOLTARE PENTRU SECURITATE MINIERĂ ŞI PROTECŢIE ANTIEXPLOZIVĂ - INSEMEX PETROŞANI (RO); EXATEL S.R.L. (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://infim.ro/project/cbrne/

Abstract:

The project is focused on the development of a complex integrated system for intervention in case of CBRNE type incidents,especially those associated to malicious acts, which are becoming more and more likely to emerge also at national level. Finding the scientific basics, suitable configuration, implementation, optimization and testing of such a complex integrated system is envisaged. The following components will be developed: (i) a dedicated software platform for monitoring of evolution and evaluation of specific effects of CBRNE type incidents, (ii) dedicated sensor system and (iii) modular complex and specific methodology for the suitable evaluation of the main characteristics regarding explosions with CBRN components.

SOL-2020-26. Decontamination devices against SARS-CoV-2 virus (UV, microwaves, X-rays,biochemicals, nanoparticles, other) Call name: P 2 - SP 2.1 - Soluţii - 2020 - 2
PN-III-P2-2.1-SOL-2020-2-0285 2020 - 2020

Role in this project:

Coordinating institution: INSTITUTUL DE STIINTE SPATIALE-FILIALA INFLPR

Project partners: INSTITUTUL DE STIINTE SPATIALE-FILIALA INFLPR (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU INGINERIE ELECTRICA ICPE - CA BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); SPITALUL CLINIC DE URGENŢĂ "PROF. DR. NICOLAE OBLU" IAŞI (RO)

Affiliation:

Project website: http://www.spacescience.ro/projects/sol2020/sol_index.html

Abstract:

In this project, the consortium consisting of the Institute of Space Science - legal subsidiary of INFLPR (PC), the National Institute for Lasers, Plasma and Radiation Physics (P1), the National Institute for Research and Development in Electrical Engineering ICPR-CA (P2), the National Institute of Materials Physics (P3) and the Iasi "Prof. Dr. Nicolae Oblu" Emergency Hospital proposes the development and fabrication of the following prototypes of decontamination devices: (a) a prototype of a mobile UVC device for the patyhogenic decontamination of exposed surfaces, objects and air in closed rooms semi-closed spaces (halls, etc), (b) a prototype of a mobile/fixed UVC tunnel/chamber for pathogen decontamination, (c) a prototype of a 2-stage microwaves generator for air decontamination in closed spaces, (d) at least one prototype of nanoparticles colloidal solution with possible wide spectrum biocidal properties using on metalic oxide nanostructures (single components/composites) and nanostructured composites based on oxide nanostructures and UV activated carbon nanoparticles. These prototypes will be tested both in a laboratory environment and in a typical hospital environment in order to achive a technology readiness level of TRL=8 for each. As a result of these testing campaigns, the two UVC decontamination prototypes, the microwave decontamination device as well as the most efficient prototypes of colloidal decontamination solutions based on nanoparticle oxides and on nanostructures and nanostructured composites will proposed for formal operational certification.

Biomimetic sensor based on high performance field effect transistors with nanowire channels Call name: P 4 - Proiecte de Cercetare Exploratorie
PN-III-P4-ID-PCE-2016-0602 2017 - 2019

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://infim.ro/project/senzori-biomimetici-pe-baza-de-tranzistori-performanti-cu-efect-de-camp-avand-canal-nanofir/

Abstract:

Recent advances in nanotechnology and nanofabrication methods lead to huge advances in the field of biosensors, mostly because the dimensions of the detector building blocks tend to become closer to the dimensions of the analytes. Further, specific receptor biomolecules are available and may be chosen to bind to the analyte with great selectivity, while on the other hand transducers with great sensitivity are available.

The present project aims at developing a biomimetic biosensor (bioFET) based on a nanowire channel field effect transistor. The device shall exploit (i) the excellent performance of nanowire field effect transistors, (ii) their particular channel geometry with high surface to volume ratios and (c) a biomimetic detection mechanism enabling sensing of low concentrations of specific target molecules. The bio-detector’s architecture will combine three key elements – (i) a high performance FET based on quasi one dimensional semiconducting nanowires; (ii) a thin film gate insulator which enables both operation in liquid/wet environment and biofunctionalization with odorant (olfactory) receptor proteins (OR) (iii) a specific bioactive functional hydrogel layer containing odorant binding proteins (OBP) with the role of locally increasing the analyte molecule concentration. Such a device will mimic living organisms smell physiology and may be an excellent tool in the fast and precise measurement and analysis of specific molecules with applications ranging from medical diagnosis to environmental monitoring. The architecture employed and the detection mechanisms will mimic olfaction by combining both odorant binding proteins and odorant receptor proteins and will aim at surpassing state of the art similar devices.

Hydrogel-contacted flexible (bio)sensors at epidermal level for non-invasive quantitative analysis of biomarkers in sweat Call name: P 4 - Proiecte de Cercetare Exploratorie
PN-III-P4-ID-PCE-2016-0580 2017 - 2019

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://infim.ro/en/project/epidermsense/

Abstract:

Acest proiect de cercetare are ca obiectiv dezvoltarea de (bio)senzori flexibili și purtabili la nivelul epidermei ca dispozitive non-invazive de detecție și cuantificare de biomarkeri în transpirație pentru monitorizarea stării fiziologice a unui organism.

Planul de cercetare în cadrul acestui proiect prezintă trei obiective specifice.

Primul obiectiv se referă la fabricarea de electrozi pe suport flexibil de politereftalat de etilenă nanostructurat cu nanofibre de polimeri sintetici metalizate cu electrocatalizatori de Pd, Pt, Rh, Ru, Ag or Au. Contactul dintre suprafața electrodului și epidermă se va realiza într-o manieră non-invazivă prin intermediul unui hidrogel care captează/absoarbe transpirația, transportă analiții la suprafața senzorului și protejează suprafața acestuia de factori externi.

Al doilea obiectiv constă în producerea de senzori selectivi de ioni prin utilizarea de ionofori încorporați în matricea de hidrogel ceea ce va permite analiza conductimetrică selectivă a ionilor Na+ și Cl- în transpirație.

Al treilea obiectiv se referă la fabricarea de biosenzori electrochimici pentru analiza cantitativă a glucozei, acidului uric și a ureei. Glucozoxidaza și uricaza vor fi imobilizate la suprafața electrodului flexibil pentru determinarea electrochimică la suprafața electrodului modificat cu electrocatalizatori metalici a peroxidului produs în timpul reacției enzimatice. In plus, sistemele de tip metal/oxid metalic la suprafața electrodului sunt sensibile la pH ceea ce permite utilizarea acestora și la determinarea ureei cu ajutorul enzimei urează.

Suprafața senzorului va fi caracterizată prin metode voltametrice, spectroscopie de impedanță electrochimică (EIS), microscopie electronică de baleiaj (SEM), de transmisie de înaltă rezoluție (HRTEM), spectroscopie de fotoelectroni cu raze X (XPS), difracție de raze X (XRD), spectroscopie Raman si de infraroșu cu reflexie totală atenuată şi transformată Fourier (ATR-FTIR) precum și UV-Vis-NIR.

Technology and equipment for producing collagen-based nanofibrillary structures for resorbable wound dressings Call name: P 2 - SP 2.1 - Proiect de transfer la operatorul economic
PN-III-P2-2.1-PTE-2016-0174 2016 - 2018

Role in this project: Partner team leader

Coordinating institution: SANIMED INTERNATIONAL IMPEX S.R.L.

Project partners: SANIMED INTERNATIONAL IMPEX S.R.L. (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://nano-ecol.sanimed.ro

Abstract:

The nano-ECol project proposal aims to develop an innovative technology and to implement a demonstrative prototype at the Technology Readiness Level TRL5, for the production of micro- and nano-fibrillar substrata usable as absorbable dressings for wounds and burns. The micro- and nano-fibers will be obtained by electrospinning, starting from colloidal solutions of atelocollagen currently manufactured at S.C. Sanimed International Impex S.R.L. In this respect, the project aims at shifting/promoting the INFIM SPIN 1.0 prototype, developed through a previous project by the National Institute of Materials Physics (INCDFM), and preliminary tested for its atelocollagen electrospinning capacity, from the TRL4 to the TRL5.

The main technological challenges faced by the nano-Ecol project are: (i) preserving atelocollagen macromolecule in a quasi-native state, (ii) providing the products reproducibility, (iii) producing substrates with an area of tens of square dm and thickness of 3 ... 12 mm, (iv) providing a prototype able to work at micropilot scale, with at demand-formulated electrospun compositions, (v) providing rapid structural and dimensional prototyping, (vi) scaling-up the prototype and related technology to industrial level.

The project will benefit from the facilities and logistics of five research centers, of which two belong to Sanimed, and three to INCDFM. Services and facilities provided by all mentioned centers are detailed on the ERRIS platform.

The Sanimed co-funding represents 67.63% of the sum allocated to the company from the public budget, i.e. 25.27% of total buget, and 39.04% of the total payroll.

The expected outcomes of the project meet the Sanimed interest in expanding the range of products and addressability, by manufacturing resorbable dressings with tailored shape, structure and density, obtained from compositions formulated at physician’s request, in order to satisfy specific pacient needs.

Transdermal drug delivery system based on metallic nanofiber webs and thermoresponsive gels Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2016-1060 2017 - 2018

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.infim.ro/ro/projects/dispozitiv-pentru-administrarea-transdermala-medicamentelor-bazat-pe-plase-de-nanofibre

Abstract:

The project has as a main objective the development of a “smart” transdermal drug delivery patch using thermoresponsive gels and nanometric metallic webs. The metallic webs will be employed as a flexible electrode for heating the gel which will further release the active element. The local increase of temperature will also improve the penetration of the active element through the stratum corneum, the barrier which usually limits these drug delivery paths. The system enables by this approach a facile control of drug delivery.

The project is based on the results already obtained by the working team in the field. Thus, the metallic webs will be fabricated through electrospinning of polymer fibers which are further covered with metal through evaporation or sputtering. The Joule effect will be employed for easily controlling the temperature of the metallic web both by direct current and by induction, allowing the automatization of the drug delivery process. The approach is an original one with high lucrative potential related to market tendencies.

Miniaturized photodetectors based on metal oxides nanowires Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2016-1249 2017 - 2018

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.infim.ro/projects/miniaturized-photodetectors-based-metal-oxides-nanowires

Abstract:

Recently, the trend in opto-electronic technologies has been moving towards the nanoscale for minimized material consuming and improvement of devices performances by tuning of the material properties via size reduction. Photodetectors are of great importance in meeting the demands of high speed computing, switching and sensing. Besides, when beyond state-of-the-art performances are reached for ozone and pollution sensing or missile warning systems they have direct applications to Energy, environment and climate changes and also within the field of Eco-nano-technologies and advanced materials.

Within the framework of this project we will develop novel visible-blind photodetectors based on single CuO-ZnO core - shell nanowires, using CuO synthesized by thermal oxidation in air covered with a ZnO shell by radio-frequency magnetron sputtering and by chemical deposition. The shell will form a radial p-n junction with the core that will be exploited in single nanowire devices for monitoring air pollution or air security.

The proof of concept p-n junction based photodector relies on the experience of the research team on growing nanowires, contacting them by lithographic techniques such as photolithography, electron beam lithography and focused ion beam induced deposition and inserting them in electronic and opto-electronic devices. We will optimize the growth process of CuO nanowires and ZnO shells in order to maximize light trapping. Ohmic metallic electrodes will be used for contacting single nanowires for emphasizing the characteristics of the p-n junction. Figures-of-merit of the fabricated photodetectors will be evaluated and correlated with the properties systematically analyzed.

High energy efficient permanent magnets without rare-earth elements Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-0971 2014 - 2017

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); UNIVERSITATEA BABES BOLYAI (RO); PurTech SRL (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.infim.ro/projects/high-energy-efficient-permanent-magnets-without-rare-earth-elements

Abstract:

This project aims at producing, characterizing and optimizing the magnetic properties of a new class of permanent magnets with high energy efficiency based on iron nitride Fe16N2 with martensite structure. Theoretical predictions for this permanent magnet indicate a maximum energy product (BH)max of up to twice the theoretically maximum allowed for the highest performance magnet up to date, namely Nd2Fe14B. The project addresses a theme that became an imperative of global research and development activities taking into account the tremendous increase of the price of rare earths. It follows a multi-disciplinary approach to the problem. Theoretical calculations based on density functional theory are used for choosing optimal doping elements (transition metals and non-metals) of Fe16N2 which show a favourable effect on increasing thermodynamic stability and also in magnetic properties improvement, i.e. increase of magnetization (via population of sublattices presenting ferrimagnetic configuration) and anisotropy. Simulations of the Fe16N2 magnetic particles embedded in matrices will allow us directing preparation methods in order to obtain magnetic particle size and morphology suitable for enhanced coercivity and high remanence magnetization. Several preparation routes will converge on the obtaining of the compound Fe16N2 and other similar. A first route of preparation uses wet chemical methods that allow obtaining Fe16N2 doped particles. Firstly, it will be obtained the iron oxide or iron oxy-hydroxide precursor with controlled morphology and size using different chemical methods in solution. Subsequently, by thermal treatments of the iron oxide or oxy-hydroxide precursors in hydrogen and ammonia atmosphere one gets Fe16N2 fine magnetic particles with needle-like or ellipsoidal shape that show an important shape anisotropy and high coercivity. The second procedure is to obtain nanocomposites based on Fe16N2 by ball milling the iron powders and doping elements under hydrogen and nitrogen/ammonia reactive atmosphere. Processing of the milled composites and Fe16N2 magnetic particles doped with transition metals and non-metals will be performed using a glove box with controlled atmosphere in order to avoid the exposure to oxygen and moisture from air. Procedures for mixing with binder, orientation in applied magnetic field, pressing and sintering for long time at temperatures below 200 0C will allow to obtain anisotropic permanent magnets based on Fe16N2 with high coercivity and remanence magnetization. The energy product of this magnet will be higher than that of cheap magnets that do not contain rare earth. The magnetic particles and final sintered magnets will by characterized by X-Ray diffraction, neutron diffraction, electron microscopy. Iron-containing phases will be analyzed by Mossbauer spectroscopy. A complex characterization of the magnetic properties (hysteresis, saturation and remanence magnetization, coercivity) will be performed. Optimization of the magnetic properties will assume a permanent feedback between preparation methods – structural / compositional characterization – magnetic properties. The magnets will be coated against corrosion. The new innovative technologies used to produce these magnets will be the subject of patent application. The main outcome of the project, after performing the project activities, will be the permanent magnet without rare earth, which has higher energy product than cheap commercial magnets. A part of the results, which are not subject to patenting, will be disseminated through ISI publications and communications at international conferences.

Multilayered Photovoltaic Structures for Space Applications Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-0776 2014 - 2017

Role in this project: Key expert

Coordinating institution: UNIVERSITATEA BUCURESTI

Project partners: UNIVERSITATEA BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH (RO); MGM STAR CONSTRUCT S.R.L. (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://mdeo.eu/MDEO/Proiecte/PN288-2014/

Abstract:

Thin film based PV structures are well fitted for space technology, due to their reduced mass. This proposal aims at investigating technological routes for fabricating thin film based multiple junction photovoltaic (PV) structures of the type ZnS/ZnSe/CdTe in superstrate configurations and to study their endurance to energetic (2-10 MeV) protons and alpha particles, which are the main components of cosmic rays, at 10^10 - 10^14 cm^-2 fluencies. In the superstrate configuration one starts with depositing the transparent front-electrode onto the glass substrate which supports the entire structure, and then, on top of it the ZnS, ZnSe, CdTe layers and finally the back-electrode. The efficiencies of the cells in superstrate configurations will be characterized, and also their endurance to irradiation. Special attention will be paid to the physical properties and the electrical response of the back-contact metal/CdTe. CdTe, an excellent photon absorber with a forbidden gap of 1.4 eV and a large light absorption coefficient, is known as a “difficult” semiconductor: due to its rather large work function, a special care must be taken to prepare a quasi-ohmic low-resistance contact with a metal. Ion implantation will be used to control electrical properties of CdTe layer, by doping with properly selected electrically active impurities. A special attention will be paid to the quality of interfaces; an optimization of the PV structures will be performed. The nature of the defects introduced by irradiation will be studied and their influence on the performance of the structures will be indicated.

Surface wettability control using self-assembled nanostructures Call name: Projects for Young Research Teams - TE-2012 call
PN-II-RU-TE-2012-3-0148 2013 - 2016

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.infim.ro/projects/surface-wettability-control-using-self-assembled-nanostructures

Abstract:

The present project proposal focuses its attention on the preparation and characterization of surfaces with controllable wettability by using self-assembled nanostructures aiming potential applications in various fields (for example self-cleaning surfaces or “smart” surfaces). As the wetting properties of the nanostructured materials depend directly on their morphology and chemical composition, the proposal will combine in an original manner different preparation methods (electrospinning technique with chemical routes like polymerization reactions, chemical bath deposition and electroless deposition) for modelling these parameters. Thus, self-assembled nanostructures (based on polymer and ZnO) containing as building blocks particles like spheres, rods, fibers, etc. will be obtained and investigated by different techniques, such as scanning electron microscopy, atomic force microscopy, X-ray diffraction, energy dispersive X-ray analysis, UV-Vis absorption, reflection, infrared absorption, photoluminescence. A special attention will be accorded to the wetting properties of these structures. Another goal of the proposal is to investigate the switching of surface wettability of self-assembled nanostructures using different external stimuli (oxygen plasma or electric field - this being known as electrowetting). Switching the wettability of a surface is a completely new concept for preparing “smart” films and may open up new perspectives in interfacial engineering.

Charge and spin control in field effect transistors with nanowire channel Call name: Exploratory Research Projects - PCE-2012 call
PN-II-ID-PCE-2012-4-0255 2013 - 2016

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.infim.ro/projects/spin-and-charge-control-nanowire-field-effect-transistors

Abstract:

In the present project we aim at developing field effect transistors with multi-segment nanowire channels and studying their charge and spin transport properties. The channel material will be either CdTe or pure and doped ZnO. The structures will be obtained using a combination of electrochemical deposition in ion track membranes for fabricating multi-segment metal –semiconductor – metal nanowires, nanowire manipulation, lithographic techniques and/or focused ion beam induced metalization for electrode patterning. We aim at replacing uniform nanowires as transistor channels with nanowires with a modulated composition along their length. We successfully employed such multi-segment nanowires in our research regarding nanowire diodes, the present project representing a natural step forward. Field effect control of ferromagnetic properties is of extreme importance for technological applications and we aim to fabricate a nanowire channel transistor based on ZnO doped with magnetic impurities. We assume that in a field effect transistor containing diluted magnetic semiconducting segments, i.e. the source, drain and the channel we will be able to control spin transport by the field applied through the gate. Practically, the source and drain segments of the nanowire will be higher Curie temperature ferromagnetic doped ZnO segments while the channel will consist in a doped ZnO segment with a lower Curie temperature.

COMPLEX LANDSLIDE MONITORING SYSTEM USING TRANSDUCERS BASED ON NEW MATERIALS AND TECHNOLOGIES Call name: Joint Applied Research Projects - PCCA-2011 call, Type 2
PN-II-PT-PCCA-2011-3.2-0975 2012 - 2016

Role in this project: Key expert

Coordinating institution: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI

Project partners: UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA TEHNICA-IFT RA (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO); QUARTZ MATRIX SRL (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.landslide.tuiasi.ro

Abstract:

The project objective is conceiving, design, realization and testing of a complete and complex system devoted to continuously monitoring the displacement under three axes of the geomorfological structures and of other specific parameters in order to detect and monitor landslides by using smart sensors based on special micro and nanostructured materials and advanced information processing techniques. The system is able to automatically acquire data on the filed, locally processing information and storing and remotely data transmitting by means of a wireless sensor communication network to a central server. The system comprises three parts: i) instrumentation part, ii) communication part and iii) data processing and user interface part. The instrumentation part consists of a complex set of new transducers devoted to measure very small spatial soil displacements, pore water pressure, conductivity and temperature at different levels under ground. The communication part is a wireless sensor network working under protocols specially designed for this application. The third part is the database continuously updated available for all users by means of a web interface. The project will have a coordinator and 4 partners from which one is a medium enterprise. The project activities are divided into four phases: the first phase devoted to building the instrumentation part, the second, to laboratory testing and calibration of all sensing devices, the third to system assembly and to realization and testing of wireless sensor network and the fourth to testing the monitoring system on the field working under real conditions. There are previewed a series of concrete deliverables materialized on four new types of sensors, the complex smart transducer, the sensor network, the assembly system ready to be implemented on the field and a database contained date collected on a high natural hazard risk area and a user friendly interface on which people may watch on the web the phenomenon.

High efficiency electrospinning Call name: Joint Applied Research Projects - PCCA-2011 call, Type 2
PN-II-PT-PCCA-2011-3.2-1017 2012 - 2016

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO); UNIVERSITATEA BUCURESTI (RO); ADINA S.R.L. (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.infim.ro/projects/high-efficiency-electrospinning

Abstract:

The main objective of the project is to develop a highly efficient alternative of the electrospinning method for preparing polymer nanofibers. The fabrication process we develop aims at using, instead of the classical spinnerets (syringes and pipettes), arrays of metallic micronic and submicronic tubules.

Secondary objectives will be the fabrication of functional metallic fibers, fabrics and products based on it for shielding applications and of complex fibers and fabrics for photovoltaic applications.

The process of electrospinning has numerous advantages. Properties of the fibers can be well controlled. The fibers are very thin and have a high length to diameter ratio, thereby providing a very large surface area per mass unit. A wide range of polymers can be processed in this manner including here natural polymers such as collagen, fibrinogen or polysaccharides. Is a method that allows one to deposit very thin polymer fibers, diameter down to few tens of nanometers.

Although the process is studied since long time ago, a scan through recent scientific literature presents the main shortcoming of the method, the low yield in terms of quantity of material produced.

Thus, the consortium approaches a problem of high technical and scientific interest, namely to develop an alternative to the method in order to increase the efficiency of nanofiber fabrication through electrospinning. We aim at replacing the classic syringe needle, pipette or other capillary with an array of metallic micrometer or submicrometer tubules prepared by a template approach.

The main objective of the groups involved in the present project is related to making the transition from the simple preparation of nanostructures towards fabricating functional nanostructures , namely of polymer, metallic and complex semiconducting fibers with high application potential. The research which will be performed is channeled in a direction strongly connected to the tendencies at international scale.

Characterization by IBA (Ion Beam Analysis) and other advanced techniques of hydrogen and other light elements in thin films of materials used in nuclear industries Call name: Joint Applied Research Projects - PCCA-2011 call, Type 1
PN-II-PT-PCCA-2011-3.1-1510 2012 - 2016

Role in this project: Partner team leader

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://proiecte.nipne.ro/pn2/139-proiecte.html

Abstract:

The need to characterize hydrogen in materials is very important to many areas including the semiconductor, transportation and nuclear industries. Among all the elements the structure of the H atom is the most simple but its detection and chemical analysis in materials (qualitatively and quantitatively) is anything but simple. H is the most difficult atomic species to analyses with many traditional methods. Because of its low Z, methods based on X ray or Auger emission do not work, and, because of its low Z and mass RBS can not be used. Nuclear physics methods of non-destructive elemental analysis of materials including the determination of hydrogen and its isotopes are now intensively used. Because the concentration and depth distribution of light elements such as H, C, N and O play an important role in many processes, different accelerator techniques such as NRA and resonance reactions have been developed to detect and profile these elements. However, more than one reaction or resonance is needed to profile several elements. For the detection and profiling of H, ERDA is an often used technique.

In this project we propose the construction of a performant experimental setup for the characterization of H isotopes and of other light elements using IBA techniques in thin films of materials used in nuclear industries. The thin films will be also characterized by additional advanced techniques such as SEM,XRD, EDX and FTIR.The materials which will be investigated in this project are composite materials and multilayers structures. These will be produced using a novel deposition technique in plasma (the sequential deposition method) developed recently by the INFLPR partner. Using a combination of MS and PECVD there will be deposited mixtures and multilayered films of W/C, with different elemental concentrations of W, C, H and D(as replacement for tritium), similar with the codeposited layers obtained in the tokamak reactors.

DUAL EMITTERS FOR DISPLAYS BASED ON OLED COMPOUNDS Call name: Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0620 2011 - 2016

Role in this project: Key expert

Coordinating institution: Institutul National de Cercetare-Dezvoltare pentru Fizica Materialelor

Project partners: Institutul National de Cercetare-Dezvoltare pentru Fizica Materialelor (RO)

Affiliation: Institutul National de Cercetare-Dezvoltare pentru Fizica Materialelor (RO)

Project website: http://www.infim.ro/NationalProjects/idei78_2011/

Abstract:

The main goal of this project is an improvement in OLED technology through a series of elements that leads to a greater stability of OLED’s, eliminating the molecular aggregation phenomena, increasing the lifetime of displays and controlling the charge carriers injection through the following innovations: a) the synthesis of organometallic compounds with dual emission (red and green), b) changing the anode structure by adding ZnO nanowires over the ITO layer, c) the inclusion in the emissive layer of magnetic nanoparticles that leads to an increasing of electroluminescence efficiency by controlling the charge carriers in the OLED device. The nanoparticles acts as traps for the charge carriers. These traps balances the currents of holes and electrons, resulting in an increase of the critical voltage and a significant enhancement of electroluminescence quantum efficiency. The effect of an external magnetic field is to align the spins of magnetic nanoparticles, which increases the fraction of singlets and thus the quantum efficiency via a spin-polarized charge transfer process. The dual emission will be obtained in organometallic compounds with two types of ligands and the ZnO nanowires can be obtained by electrochemical deposition.

A decrease of applied voltages to the OLED devices will be expected.

Nonlinear optical processes manifesting as Anderson localization of light in mesoscopic materials Call name: Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0619 2011 - 2016

Role in this project: Key expert

Coordinating institution: Institutul National de Cercetare Dezvoltare pentru Fizica Materialelor

Project partners: Institutul National de Cercetare Dezvoltare pentru Fizica Materialelor (RO)

Affiliation:

Project website: http://www.infim.ro/projects/nonlinear-optical-processes-manifesting-anderson-localization-light-mesoscopic-materials-0

Abstract:

The interaction of the mesoscopic materials with optical radiation is a new challenge, very different from what happens in the case of bulk materials. Multiple light scattering gives rise of an intense diffuse light background and for extreme disorder and by analogy with the propagation of electron waves manifests itself as an Anderson localization of the light. It can be revealed by abnormal anti-Stokes Raman emission (AASRE), defined by an anti-Stokes/Stokes intensity ratio much greater than expected on the basis of the equilibrium population of the excited vibration states provided by the Boltzmann law. Corroborating optical microscopic observations with many features of AASRE as i) the increase of AASRE intensity with the Raman shift; ii) a square dependence on the material thickness; iii) a square dependence on the exciting laser intensity; iv) a grazing emission; v) a greater polarization ratio in comparison with the spontaneous Stokes Raman emission, one demonstrates that AASRE is conditioned by a particular morphology of the sample, typical for mesoscopic media. Thus, AASRE appears as a new optical phenomenon, as a single beam pumped Coherent anti-Stokes Raman scattering (CARS) that is developed in disordered media. Normally, to produce such an effect three exciting wavelengths are needed. By this project one demonstrates for the first time that under tight focusing of a single excitation laser beam on a nonlinear mesoscopic material can get a CARS like effect.

Integrated process for the removal of nitrates and organochlorine pesticides from natural water contaminated related to agricultural practices Call name: Joint Applied Research Projects - PCCA-2011 call, Type 1
PN-II-PT-PCCA-2011-3.1-1497 2012 - 2016

Role in this project: Key expert

Coordinating institution: UNIVERSITATEA BUCURESTI

Project partners: UNIVERSITATEA BUCURESTI (RO); INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.unibuc.ro/prof/bradu_c/inte/

Abstract:

More than 40% of groundwater from agricultural area of European Community (including Romania) have nitrate concentration above guidelines value. Toxic and persistent organochlorine pesticides have been detected adjacent to nitrates in water sources. Thus removal of nitrates and organochlorine pesticides from water is becoming a developing area of research. Along with Good Agricultural Practices, additional actions like water treatment can speed up water sources remediation.

This project focus on the development of an efficient and cost-effective integrated technology for the nitrate and pesticides removal from water contaminated as a result of the agricultural practices, leading to the protection and remediation of natural water resources. The project considers all the steps necessary from the development of suitable treatments up to the elaboration of the experimental model for the integrated water treatment technology. This approach maximizes the benefits of the project by combining innovative water treatments to reduce the environmental impact generated by the two important classes of water pollutants. Up to now the removal of nitrate and organochlorine pesticides from water was considered separately, through individual treatment processes. Our project proposes an integrated approach while several combined processes (catalytic liquid-phase reduction, catalytic advanced oxidation and ion exchange process) might be applied for both nitrate and organochlorine pesticides removal. Novel catalysts based on noble metals supported on nano-structured alumina or ion exchange resins will be used in this respect. The proposed technology could be applied for drinking water treatment and water resources remediation as well. The multidisciplinary Consortium is well balanced to achieve the global goal of the project with scientists experts in various water treatments and water analysis, advanced materials synthesis and materials complex characterization.

High control of pure and doped ZnO nanostructures properties through complex/multistep electrodeposition processes Call name: Postdoctoral Research Projects - PD-2012 call
PN-II-RU-PD-2012-3-0117 2013 - 2015

Role in this project: Project coordinator

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://www.infim.ro/projects/high-control-pure-and-doped-zno-nanostructures-proprierties-through-complexmultistep

Abstract:

The present project aims in developing complex/multistep electrochemical methods for the electrodeposition of ZnO nanostructured films with tailored properties. Electrochemical deposition has several major advantages on preparing ZnO nanostructured films such as: scalability, low cost and high control of properties. The technique is suited especially to tasks where high areas and low costs are demanded. The state of the art in the field corresponds to simple, constant voltage or constant current processes. What I aim in the present project is to develop more complex processes, where several steps with different purposes are combined. The purpose of this project is to capitalize on the results already obtained by the principal investigator and to increase the possibilities of control, opening in this way the possibility to increased functionalities.

Not only morphological characteristics can be tuned by deposition conditions but also optical, structural and compositional properties can be tailored by appropriately choosing the experimental variables. The project is related to the development of nanostructured materials or to nanostructures which can be further used in a wide range of applications such as electrodes for optoelectronic devices including both energy harvesting, i.e. solar cells and light emitting i.e. LEDs and OLEDs, smart electrodes for electrochemical sensors or building blocks for spintronic applications.

Quasi one-dimensional photonic crystals based on refractive index control of polymer nanofibers Call name: Projects for Young Research Teams - TE-2011 call
PN-II-RU-TE-2011-3-0107 2011 - 2014

Role in this project: Key expert

Coordinating institution: Institutul National de Cercetare-Dezvoltare pentru Fizica Materialelor

Project partners: Institutul National de Cercetare-Dezvoltare pentru Fizica Materialelor (RO)

Affiliation:

Project website: http://www.infim.ro/projects/quasi-one-dimensional-photonic-crystals-based-refractive-index-control-polymer-nanofibers

Abstract:

The scientific goal of the project is to obtain quasi one-dimensional photonic crystals based on polymer nanofibers. One characteristic of a photonic crystal is the periodicity over one or more axes. In principle, photonic crystals are periodic optical nanostructures that affect and change the propagation of photons. The aim of the project is to produce by electrospinning dye-doped polymer nanofibers incorporating uniformly dispersed metal or semiconductor nanoparticles. By doping the polymer with dyes and further co-doping with nanoparticles we will be able to tailor both the refractive index and the luminescent properties of the material. A photonic crystal band gap will be produced, similar to the semiconductor band gap. The features of the electrospinning process allow us (by the process parameters, such as applied voltage, distance from the anode to cathode, viscosity of the polymer solution etc.) to vary the geometrical parameters of the polymer nanofibers. That will influence the optical properties of the material. Moreover, by varying the concentration of the dopants (particles/dye) and the size of the doping particles we can achieve periodic modulation of the refractive index. Thus, nanostructuring the dye-doped polymer into beaded nanofibers we will be able to produce a photonic band-gap material and to obtain a quasi one dimensional photonic crystal out of a single doped polymer nanofiber.

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List of research grants as project coordinator or partner team leader	Download (166 kb) 18/04/2024
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