BrainMap

Anca Cristina Petran

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

Researcher

Web of Science ResearcherID: not public

Expertise & keywords

Unprecedented polyesters as coating for solid surfaces with application in medicine and nanotechnology Call name: Projects for Young Research Teams - RUTE -2014 call
PN-II-RU-TE-2014-4-0654 2015 - 2017

Role in this project:

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/ru319/

Abstract:

The main goal of the project is to develop new hybrid materials based on polyesters of α-hydroxy carboxylic acids (PAHCA) functionalized with molecules having different application in magnetic separation, biomedicine and chemical and pharmaceutical industry. The project focused on a complex research field, polymers, nanosciences and nanotechnologies, situated in the actual orientation for the development of functional hybrid nanostructured materials. Polyesters of α-hydroxy carboxylic acids, such as polylactic acid or polyglycolic acid have found widespread application in materials field, medicine and nanotechnology, but have also several limitations due to lack of reactive groups for linkage, and because of their easiness of biodegradation in environment and in biological medium. The project aims to overcome these obstacles and extends potential application of these polymers by preparing new functionalized PAHCA by polymerization reaction of new functionalized lactides synthesized in the project. The resulting composite materials attract fundamental interest by contributing to the understanding of physical processes and phenomena associated with nanostructures, intermolecular specific interactions, interface effects, phase transitions and applicative interest for medicine and nanotechnology.

Magnetic nanofluid sealing system for high peripheral speed Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-0948 2014 - 2017

Role in this project:

Coordinating institution: ROSEAL S.A.

Project partners: ROSEAL S.A. (RO); ACADEMIA ROMANA FILIALA TIMISOARA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO); UNIVERSITATEA POLITEHNICA TIMIŞOARA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE TURBOMOTOARE - COMOTI (RO)

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

Project website: http://www.roseal.eu/HiSpeedNanoMagSeal/

Abstract:

Roseal Co. is a SME specialized in manufacturing sealing systems aiming permanently to meet the market requirements. The primary concern regarding to the technology impact on the ambient environment leads for developing new, innovative and environment-friendly products through research. In this context stands the topic of the project – leakage-free sealing system for high peripheral speeds to be used in gas turbocompressors used in petroleum refining and chemical fertilizer industry.

Turbocompressors have large diameters and operates at high rotational speeds, having a high peripheral speed, approx. 30 - 70 m/s in the sealing area. Currently, mechanical seals with barrier fluid or non-contacting mechanical seals with inert gas are used, which don’t ensure hermetic sealing. Moreover, using seals with barrier fluid can contaminate the product, catalyst, etc. On the other hand, inert gas seals require special source supply of clean inert gas and rigouros control of the pressure difference. The maintenance of these seals requires periodical (~ 2 years) change of the rotating active components, a very expensive operation due to the fact that these spare parts must be processed with submicronic precission.

The project proposes the development of new magnetic nanofluid (MNF) seals which has significant advantages compared to conventional mechanical seals: hermetic sealing, exceptionally long lasting operation without intervention (~ 5 years), minimal wear (only viscous friction), virtually zero contamination, optimal torque transmission, wide operating range (10^-8 mbar - 10 bar), relatively simple and cost efficient execution.

The objectives and expected results give a very high degree of complexity and absolute novelty to the project by creating an entirely new generation of leakage-free seal system for high peripheral speeds (30 – 70 m/s) at experimental scale and developing new generation MNF with high temperature resistance up to 140 °C - 180 °C (generated in such type of seals).

The work plan includes tasks in order to achieve the final goal: the synthesis of surfactants for stable magnetic nanoparticles at high temperatures, components of MNFs; synthesis and production of MNF, stable at high temperatures; design, development and manufacturing experimental models of hermetic seals, testing and performance evaluation of experimental models of sealing systems.

Success of the project is assured by the exclusive character of the partnership: CO – ROSEAL is the only manufacturer of seals and producer of MNF with saturation magnetization up to 1450 G for seals in Romania and in Central and East Europe. Worldwide there are less than 10 MNF producers, however they don’t commercialize MNF with saturation magnetization over 600 G; P1 – ARFT, Laboratory of Magnetic Fluids - leader of the international community of magnetic fluids, the only research unit in Romania with well-defined profile in the field of synthesis and characterization of MNFs, being expert in magneto-optical investigation of the influence of magnetic field on the structure of magnetic fluids; P2 – INCDTIM with expertise and equipment in accordance to the European standards for synthesis and characterization of surfactants, characterization of MNF with specific analytical methods, P3 – UPT, RCESCF – expert in rheological, magnetorheological and magnetic characterization of MNFs; P4 – COMOTI – expert in gas turbocompressors with competence for testing at high peripheral speeds. The project implementation responds to SME strategy to develop new, innovative and environment-friendly products by using advanced materials and technologies, thus increasing the turnover and the net profit due to the demand for leakage-free seals in gas turbocompressors on national and international market. Developing a new generation of high temperature resistant MNF opens opportunities for new fascinating applications, as well.

Security paper with imbedded magnetic nanoparticles Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-0560 2014 - 2017

Role in this project:

Coordinating institution: ACADEMIA ROMANA FILIALA TIMISOARA

Project partners: ACADEMIA ROMANA FILIALA TIMISOARA (RO); CEPROHART S.A. (RO); ROSEAL S.A. (RO); DATRONIC-NCIP S.R.L. (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO); UNIVERSITATEA POLITEHNICA TIMIŞOARA (RO)

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

Project website: http://vsocoliuc.wordpress.com/projects/nanomagsecuritypaper/

Abstract:

Document forgery is a criminal activity that causes billion dollar losses each year worldwide. Security paper is among the most important ingredients used in the fight against the forgery of private or public documents. The continuous diversification and sophistication of the paper securing techniques is one of the most important ways to erect fences against forgery attempts. The NanoMagSecurityPaper project aims to expand the diversity of high tech means for paper securing. The project’s strategic objective is to bring magnetic security paper on the security paper market. It is estimated that the Romanian security paper market alone will demand for tens of tons of magnetic security paper each year.

NanoMagSecurityPaper brings in the idea to obtain magnetic security paper by dispersing superparamagnetic nanoparticles in the wet cellulose pulp. The superparamagnetic paper thus obtained gets the functionality of security paper only together with appropriate validation methods and instruments. In order to meet this goal, joint applied research from the following three fields is necessary: 1. paper making, 2. magnetic nanoparticle/composite synthesis, and 3. magnetic sensing and validation. In order to meet the highest security standards, the authenticity checking procedures should make possible both a fast, handy and reliable first instance validation, and a sophisticated, albeit laborious, high security level validation. The NanoMagSecurityPaper will elaborate and test methods to produce high security level magnetic paper, by embedding in the paper composition magnetic nanoparticles and, for white color paper, magnetic composites. A handy and high sensitivity first instance validation method and instrument will be developed.

NanoMagSecurityPaper will achieve its objectives by transferring fundamental and applied knowledge on magnetometry, magnetogranulometry, magnetic sensing and magnetic nanoparticle/composite synthesis, from three Romanian academic institutions to three Romanian industrial partners: SC CEPROHART SA - security paper producer, SC ROSEAL SA - magnetic nanoparticle/composite producer, and SC DATRONIC-NCIP SRL – electronic equipment producer. NanoMagSecurityPaper will provide high-tech added value to the product portfolio of the consortium industrial partners, as well as a deeper scientific knowledge transfer expertise to the academic institutions of the consortium.

NanoMagSecurityPaper will also open means for the development of securitization techniques for a wide range of diamagnetic materials like paints, textiles, polymeric composites, and others.

Novel organocatalytic magnetic core-shell nanoparticles and their application Call name: Projects for Young Research Teams - TE-2011 call
PN-II-RU-TE-2011-3-0130 2011 - 2014

Role in this project:

Coordinating institution: Institutul National de Cercetare Dezvoltare pentru Tehnologii Izotopice si Moleculare

Project partners: Institutul National de Cercetare Dezvoltare pentru Tehnologii Izotopice si Moleculare (RO)

Affiliation: Institutul National de Cercetare Dezvoltare pentru Tehnologii Izotopice si Moleculare (RO)

Project website: http://itim-cj.ro/PNCDI/ru100/

Abstract:

The project aim is to create a new generation of organocatalytic magnetic core-shell nanoparticles as a recyclable organocatalyst with a great applicative potential, by combining an inorganic magnetic core and an organic polymer coating functionalized by a catalytic moiety. The project focused on a new and complex research field, nanosciences and nanotechnologies, situated in the actual orientation for the development of functional nanostructured materials from the molecular scale to devices for applications by controlling physical and chemical processes and methods. In order to target the project main objective magnetic core-shell nanoparticles having organocatalytic moieties covalently linked with high organocatalytic performance will be prepare. The advantage of this magnetic organocatalyst over the classical catalysts, consist in an easy removal from reaction media due to the magnetic separation. This methodology saves resources, reduces wastes and toxic hazards and thus contributes to the sustainable development. Such magnetic material also attract fundamental interest by contributing to the understanding of physical processes and phenomena associated with nanostructures, intermolecular specific interactions, interface effects, phase transitions and applicative interest for organocatalysis.

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