BrainMap

Mrs. Alia Colnita

Dr.

Scientific Researcher III - INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Researcher | Scientific reviewer

Web of Science ResearcherID: A-1756-2017

Curriculum Vitae (14/09/2023)

Expertise & keywords

Development of a highly sensitive and selective SERS aptasensor for medical diagnosis Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2021-1998 2022 - 2024

Role in this project: Key expert

Coordinating institution: UNIVERSITATEA BABES BOLYAI

Project partners: UNIVERSITATEA BABES BOLYAI (RO); CENTRUL INTERNATIONAL DE BIODINAMICA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: https://sites.google.com/view/nanoaptadia/home

Abstract:

Biomarkers are currently used for detection of diseases and monitoring therapeutic progresses in diagnostics. The accurate measurement of biomarkers in human patient samples is exceedingly important requirement for any analytical method. This project aims to develop an experimental demonstrator designed to provide pertinent solutions to three unmet medical needs in diagnostics: (1) high sensitivity; (2) high specificity and (3) label-free detection of disease biomarkers. Specifically, a novel biosensing nanotechnology will be implemented by coupling a new class of high affinity biorecognition elements called aptamers at the surface of plasmonic nanoplatforms recently developed in our laboratory. While the aptamers attached onto the metallic surface can specifically recognize the target molecules (biomarkers), the signal transduction will be based on ultrasensitive Surface Enhanced Raman Scattering (SERS). SERS has previously demonstrated its analytical performance toward “single-molecule sensitivity” and ability to identify and discern biomolecules by their spectral “Raman fingerprint” signature. By exploiting the complementary expertise of three research centers in SERS spectroscopy, chemistry and surface engineering, and fabrication and characterization of plasmonic nanoplatforms we expect to provide the feasibility of aptamer-modified SERS nanosensor for high sensitivity, high specificity and label-free detection of some relevant disease biomarkers. The as-fabricated “microchip” inserted in a Raman spectrometer to collect the SERS signal from the targeted biomarkers can offer unique characteristics, competitive advantages compared to other detection systems in the market and real potential for technology transfer.

SERS nanoplatform for neurodegenerative diseases diagnostic using bioinspired 3D hierarchical nanostructures Call name: P 1 - SP 1.1 - Proiecte de cercetare pentru stimularea tinerelor echipe independente - TE-2021
PN-III-P1-1.1-TE-2021-0753 2022 - 2024

Role in this project: Project coordinator

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: https://www.itim-cj.ro/PNCDI/nanedissers/

Abstract:

In today’s society, the need for more rapid, sensitive, specific and accurate new diagnosis methods for neurodegenerative disorders is critical due to the aging of the population. The main objective of “NanedisSERS” is to develop a new and improved surface-enhanced Raman scattering SERS-based flexible nanoplatform for the noninvasive detection of neuro-biomarkers at trace level concentrations. We propose a joint use of zinc oxide (ZnO) and silver (Ag) materials to fabricate bioinspired, innovative 3D nanoplatforms using modern fabrication techniques. Nanoimprint Lithography (NIL) will be employed to fabricate periodic bioinspired nanopatterns on flexible and transparent substrates. The innovative 3D hierarchical SERS active substrate will consist in the deposition of ZnO and Ag thin films using Pulsed Laser Deposition (PLD) and Magnetron Sputtering (MS) methods. The originality of the proposal lies in the joint exploitation of top-down (NIL) and bottom-up (PLD, MS) approaches with real time and ultrasensitive SERS detection to maximize the detection sensitivity, specificity and decrease overall cost, (ii) the bioinspired arrangement of high-density hotspots decorated with SERS active ZnO@Ag heterostructures and (iii) direct use as a simple and accessible tool of neurological biomarkers’ SERS detection. The proposed SERS diagnosis platform could have a ground breaking impact and can arise as a viable complementary technological candidate to the traditional diagnostic tools.

Gold nanourchin (GNU)-based SERS microfluidic immunosensor for the early detection of Alzheimer's Disease (AD) relevant biomarkers Call name: P 1 - SP 1.1 - Proiecte de cercetare pentru stimularea tinerelor echipe independente - TE-2021
PN-III-P1-1.1-TE-2021-0234 2022 - 2024

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: https://sites.google.com/view/aldibisensers/home

Abstract:

This project focuses on the development of a surface-enhanced Raman spectroscopy (SERS)-based microfluidic sensor that makes use of the unique physical properties of gold nanourchins (GNUs) as efficient SERS-amplifiers, induced due to their spiky geometry. The specificity of the system is ensured by the employment of antibodies as molecular recognition moieties, which have the inherent property of binding the target antigen with high affinity. Herein, we aim to detect and quantify Alzheimer’s Disease (AD) specific biomarkers at concentrations that are relevant for early (pre-symptomatic) diagnosis, from biological samples that can be collected non-invasively, such as saliva, urine, or plasma. The miniaturisation of such a detection device through implementation in a microfluidics platform can offer advantages like low sample volume, short reaction time, robustness, reliability, and portability, with the potential for implementation as point-of-care devices.

Ready-to-use flexible wound dressing with synergistic photothermal and antimicrobial capabilities Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2021-3342 2022 - 2024

Role in this project: Key expert

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); UNIVERSITATEA BABES BOLYAI (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: https://www.nipne.ro/proiecte/pn3/66-proiecte.html

Abstract:

The increasing costs of treatment of chronic wounds has urged the scientific community to look for more efficient wound-dressings. When addressing a chronic wound one should consider the diverse microbial environment that needs to be targeted, but also supporting wound healing. Biocompatible materials support the healing of the wound while antimicrobial agents (i.e., iodine, honey and silver, etc) can be easily incorporated if needed. Due to the rise of antibiotic resistance treatment of chronic wounds has become extremely complicated because of the lack of adequate dressing systems. Recently there is a growing interest towards the use of natural products with antimicrobial features, such as antimicrobial peptides (AMPs). Therefore, we plan to design AuBPs-based flexible PDMS patches functionalized with antimicrobial peptides used as a new alternative for chronic wounds treatment. We plan to combine the effect of photo-thermal disinfection generated by gold nanobipyramids activated with white light (e.g. smartphone torch light) with the one obtained by AMP release. To our knowledge, this is the first study that envisages flexible wound dressing with synergistic photo-thermal and antimicrobial capabilities.

High-throughput nanoscreening platform for SERS monitoring of latest generation antibiotics’ activity on antibiotic-resistant pathogens at single-cell level Call name: P 1 - SP 1.1 - Proiecte de cercetare pentru stimularea tinerelor echipe independente
PN-III-P1-1.1-TE-2019-0910 2020 - 2022

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: https://sites.google.com/view/antibresissers/

Abstract:

We propose an alternative to traditional diagnosis of infections based on surface-enhanced Raman scattering (SERS) which involves collecting a sample from the patient, which is further put in contact with a silver spot laser induced, resulting in scattering and recording the spectral fingerprint of the pathogen, if present. By comparing the obtained fingerprint with standard spectral fingerprints from existing databases, the pathogens may be identified at strain level within minutes. Obtaining an antibiogram is the final step, which can be assessed in maximum of a couple of hours. This method may enable an effective and targeted infection treatment, and may reduce significantly the mortality rate, especially in infants, given by the increasingly number of aggressive strains.

The proposed nanoscreening platform offers a unique approach that is different from other medical techniques utilized nowadays for the screening of pathogens in routine clinical work. It combines SERS for the ultrasensitive molecular fingerprinting of pathogens with microfluidics for their isolation. Moreover, we intend to comprehensively implement additional computational tools in order to achieve a full understanding of the pathogens’ mechanism of resistance. This issue will be pursued by using optimized, in-house developed statistical model for identification, discrimination and classification of pathogens and quantum chemistry molecular modelling tools. The main advantages of the proposed SERS-based nanoscreening platform are that it is rapid, label free (no use of antigens, receptors, dyes or other specific labels is required), cost-effective, reliable, portable and ultrasensitive.

Once we succeed to tackle the connection between the resistance behavior of antibiotic-resistant pathogens and their spectral fingerprint monitored in real time by using our proposed methodology, we will be able to move forward and to influence point-of-care routines for sepsis.

Emerging technologies for the industrial capitalization of 2D structures (graphene and nongraphenic) Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0387 2018 - 2021

Role in this project: Key expert

Coordinating institution: Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti

Project partners: Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); UNIVERSITATEA BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO); UNIVERSITATEA DIN CRAIOVA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: http://icechim-rezultate.ro/proiect.php?id=49

Abstract:

EMERG2Ind is a complex solution that responds to the needs of Romanian research on one side through a institutional management and development mechanism, but at the same time it is a complex interface tool for the Romanian automotive industry as a development engine and integrator for the horizontal and vertical integration of the Romanian economic resources. International expertise is available in an attempt to develop concrete solutions in the country. Emerging technologies are being developed up to TRL4 and TRL5, through complementary harmonization of three strategic subprojects. The complex project approach is regional and institutional with cumulative indicators that fully meet the requirements and seeks to maximize the use of the funding instrument.

Emerging molecular technologies based on micro and nano-structured systems with biomedical applications Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0010 2018 - 2021

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO); UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE MEDICO-MILITARA „CANTACUZINO” (RO); UNIVERSITATEA DE MEDICINA SI FARMACIE "IULIU HATIEGANU" (RO); UNIVERSITATEA BABES BOLYAI (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: http://www.itim-cj.ro/PNCDI/tehnobiomed/

Abstract:

The TehnoBioMed project aims to increase the institutional performance of 6 partners with a rich tradition in research, development and innovation (RDI) joined in a consortium with a strong interdisciplinary character designed to develop emerging molecular technologies based on micro- and nanostructured systems and dedicated to biomedical applications.

The project consortium consists of 6 partners distributed in 3 university centers with a tradition in the RDI activity: Cluj-Napoca, Bucharest, Iasi, and consists of 3 national institutes and 3 prestigious universities. The consortium partners are distributed in three different development regions of Romania.

The specific objectives of the project can be synthesized by: i) Manufacturing and testing of surfaces with antimicrobial properties obtained by micro- and nano-fabrication techniques and functionalized with antimicrobial peptides; ii) Development of molecular targeting drug systems by encapsulation in supramolecular structures of the dendrimeric type; iii) Carrying out, calibrating and testing a complex diagnostic equipment based on the principles of coherent optics and dedicated to obtaining high-resolution images in medicine and material science; iv) Development of new technologies for the detection and analysis of molecular biomarkers; v) Development of the technological potential of phycobiliproteins for the production of photosensitive materials with applications in new solar cells and new immunological sensors.

The project aims to develop new or significantly improved products / technologies / services of which we mention the following: Developing a high-resolution OCT imaging equipment with applications in biomedicine and material science; Designing, manufacturing and testing of a nano-ELISA technology; Making new systems with improved antimicrobial activity and increased efficiency against bacterial biofilm formation; Obtaining compounds/materials with impact in the prevention and control of infections.

design of Highly Efficient AntimicrobiaL peptides: in Silico preDiction and Experimental validation Call name: P 1 - SP 1.1 - Proiecte de cercetare pentru stimularea tinerelor echipe independente
PN-III-P1-1.1-TE-2016-0032 2018 - 2020

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: http://www.itim-cj.ro/PNCDI/te99/index.htm

Abstract:

Antimicrobial peptides are a type of host defense peptides that present both high therapeutic potential and high selectivity of interaction with bacterial cells over mammalian cells. However, the possibility of bacterial resistance occurring against natural AMPs activity, combined with the already picked low-hanging fruits of obvious natural peptide targets, suggests the need for novel AMP design approaches. The main challenge is increasing efficacy of the novel drugs in safety conditions, since previous individual design methods had only limited success thus far.

The main objective of this application is the development of a new approach on identifying potential novel antimicrobial drugs. The ground-breaking nature of the proposed approach is that it combines the predicting power of several complementary computer-aided design methods with experimental validation of the proposed AMPs. We will computationally design new AMPs whose purpose would be to disrupt or pass through membrane models, and experimentally validate their efficiency against several bacterial strains. This new approach, can, in principle, be applied to find novel AMPs and rank them by their computationally predicted relative antimicrobial activity and cytotoxicity.

Development of a microfluidic portable device for pathogen’s rapid SERS detection Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2016-0983 2017 - 2018

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO); UNIVERSITATEA BABES BOLYAI (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: http://www.itim-cj.ro/pncdi/mifsers/

Abstract:

In this project we aim to develop and validate an experimental demonstrator for the label-free surface-enhanced Raman scattering (SERS) detection of pathogens within less than 15 minutes.

Thus, we propose a demonstrator, comprising a microfluidic flow-cell coupled to a flow system, and a portable/handheld Raman spectrometer for SERS detection of pathogens immobilized in the flow cell. This will lead to a rapid, ready-to-use system of detection that will provide rapid, high sensitivity and culture-free analysis of real biological samples.

We propose a label-free SERS–based alternative approach for detecting pathogens in a practical manner, by developing an experimental demonstrator that is based on the in situ silver NPs preparation in a microfluidic flow-cell and the handheld Raman spectrometer as detection tool. This innovative methodology is sustained by the research background of the candidate (specialized in vibrational spectroscopic techniques, mainly SERS and its analytical chemistry and biomedical applications), the partner's expertise, and the latest generation equipment. Eventually, the team members will be able to validate the developed detection methodology by using the handheld Raman spectrometer on real biological samples, in laboratory conditions.

The objectives of the project are developing the experimental setup, optimizing and validating the SERS detection methodology by using the developed device and finally, validating the experimental demonstrator and apply for a patent registration. As a final step of the development of the detection system, the analysis time will be reduced to less than 15 min.

The pathogens we will test are most common Gram-negative uropathogens, foodborne pathogens, Gram-positive enterococci, skin pathogens, and pathogenic fungi which cause complications in immunosuppressed patients.

Thus, after project implementation the TRL will reach a level of 4 on the TRL scale.

Mobility Project for Young Researchers Call name:
PN-III-P1-1.1-MC-2017-0782 2017 - 2017

Role in this project: Project coordinator

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website:

Abstract:

Pathogenic microorganisms’ rapid detection and identification using high sensitive Raman spectroscopy Call name: Projects for Young Research Teams - RUTE -2014 call
PN-II-RU-TE-2014-4-0862 2015 - 2017

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: http://www.itim-cj.ro/PNCDI/ru381/

Abstract:

The bio-sensing for bacteria detection is currently explored by using various sensing materials and approaches but it is still a challenge to find an alternative to the conventional protocols, based on microorganisms’ cultivation. This project proposal provides an ultrasensitive and selective, but simple, rapid and inexpensive bacteria detection and identification method by using a receptor-free and innovative immobilization principle of the biomass. Raman spectroscopy, which combines the selectivity of the method with the sensitivity of the surface-enhanced Raman scattering effect (SERS), is used in correlation with Principle Component Analysis (PCA) in order to develop biosensors for pathogenic microorganisms. Most common pathogenic bacteria will be tested by applying an original immobilization protocol and the in situ synthesis method of the SERS-active nanostructures. The specific molecular information gathered from the spectroscopic data will be uploaded and analyzed by means of advanced statistical methods, with the final goal of creating an appropriate protocol which will be used on complex biological samples. The rapid pathogens identification and differentiation between multiple species, down to strain level will be carried out by means of SERS-PCA bio-sensing. Furthermore, the efficiency of multiple classes of antibiotics on bacteria viability will be investigated by SERS in order to obtain rapid and precise diagnostic and targeted treatment.

Rational design and generation of synthetic, short antimicrobial peptides. Linking structure to function Call name: Joint Applied Research Projects - PCCA-2011 call, Type 1
PN-II-PT-PCCA-2011-3.1-0595 2012 - 2016

Role in this project: Key expert

Coordinating institution: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI

Project partners: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH (RO); UNIVERSITATEA BABES BOLYAI (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: http://www.science.research.uaic.ro/biopep/

Abstract:

Antimicrobial peptides (AMPs) are an integral part of the immune system and protect a host from invading pathogenic bacteria. To overcome the problem of antimicrobial resistance, AMPs are being considered as potential alternatives for antibiotics. Although over 1000 AMPs have been isolated and characterized from various hosts, only limited successes have so far been achieved in clinical trials. The major hurdles for converting them into drugs lie in the high cost of production, toxicity to host cells, and susceptibility to proteolytic degradation. Therefore, a better understanding of the structure–activity relationships of AMPs is required to facilitate the design of novel antimicrobial agents. Herein we plan to focus our effort on designing and optimizing novel short, cationic amphiphilic peptides. We will undertake rational design, synthesis, and extensive testing of a series of short cationic peptides, we envision proteolityc and salt resistant. They will be made of a limited set of L- and D-aminoacids based on an elementary amphipathic templates of up to to 11 aminoacids, searching for the minimum number of aminoacids and optimal architecture able to confer the peptide optimal lytic activity and specificity against various pathogens. In order to enhance antimicrobial activity with no additional hemolytic activity, peptide synthesis will be considered by using non-natural amino acid analogs that will substitute hydrophobic residues leucine, isoleucine and phenylalanine. This group of peptides will be designed and synthesized with shorter sequence and simpler molecular structure and could be easily modified upon a particular requirement. The structural simplicity also offer technological advantages for mass production and purification.

High Contrast Gallium Mirrors Call name:
2013 - 2014

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website:

Abstract:

The purpose of the project is to experimentally demonstrate a new concept of reflective optical modulator, whose reflectance can be reversibly switched between a low and a high value by varying the temperature of a thin gallium layer across its melting point (29.7 deg. C). Their unique selling point is their increased figure of merit - expressed as the ratio between the high and low reflectivity values, i. e. the contrast ratio. This feature is obtained by integrating a gallium layer into an appropriately designed thin film interference optical filter. The reflectivity of the device can be modulated at high rates, by electrical or optical means, including the case where the modulated light is also the modulating factor. Commercial potential for these devices can be identified in a number of market sectors: reversible optical fuses/limiters for defense applications, passive/active Q-switching devices for the laser industry, reflective optical switches in the scientific research sector, thermal sensors for fire risk prevention and optical displays.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader	Download (412.72 kb) 14/09/2023
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects