Ph.D. degree award:
IInd degree researcher
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti
Personal public profile link.
Curriculum Vitae (26/08/2020)
Expertise & keywords
Publications & Patents
Peroxynitrite: Relevance for Food Safety and Novel Electrochemical Detection
Exploratory Research Projects - PCE-2011 call
Role in this project:
Institutul National de Cercetare Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti
Institutul National de Cercetare Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
Considering this toxicity potential of peroxynitrite formation in meat with impact for food safety, it is proposed herein to develop advanced tools to quantify the presence of peroxynitrite in food: meat, in real-time in situ. While there are several detection methodsavailable for peroxynitrite (e.g. oxidation of fluorescent probes, EPR spectroscopy, probe nitration, chemiluminescence, immun-histochemistry) these tend to be more elaborate and difficult to apply for real-time quantification, due to their inherent complexity. The electrochemical detection of peroxynitrite would be a simpler and more convenient technique.
Based on initial results and specific knowhow, the team final goals are to develop electrochemical ONOO- sensitive in situ methods, based on new/improved (metalloporphyrins and conjugated polymers) nanocomposies, for detection its dynamics in foods such as meat-fish tissue and use the results to better understand ONOO− implications for food quality and safety. Once perfected as analytical tools, the peroxynitrite microprobes could be studied for possible use in pharmacology and toxicology.
Reuse waste polypropilenes using a new additive
Joint Applied Research Projects - PCCA-2011 call, Type 2
Role in this project:
INSTITUTUL DE CERCETARI PENTRU ACOPERIRI AVANSATE ICAA S.A.
INSTITUTUL DE CERCETARI PENTRU ACOPERIRI AVANSATE ICAA S.A. (RO); Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INSTITUTUL DE CERCETARI PRODUSE AUXILIARE ORGANICE S.A. (RO)
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
The main goal of this project is to reintroduce the recovered polypropylene after its lifetime use in the economic circuit as high performance composite materials. There will be used the current industrial technology for melt alloying of the components. The project task consists in the obtaining of new styrene-isoprene block copolymers with thermoplastic elastomeric properties for advanced recycling of recovered polypropylene. A new technology is proposed for the obtaining of styrene-isoprene block copolymers-recovered polypropylene composite materials with high performance impact strength especially below 0°C. The recycled composite material is cheap and shows higher impact strengths (2-4 times higher) even than the unused initial polypropylene form current production according to our recent experimental results. Therefore, advanced recycling of polypropylene wastes could be ensured with favourable effects for depollution and environmental protection.
The present research focuses on establishing the molecular and compositional parameters for styrene-isoprene block copolymers resulting in recovered polypropylene composites with optimum properties.
The synthesis of styrene-isoprene block copolymers will be done by solution sequential anionic polymerization of monomers with n-BuLi as initiator which permits precise and reproducible block copolymers to be obtained. The molecular weights of the polystyrene and poly-isoprene blocks are well defined with a narrow distribution.
Solution polymerization is a modern non-polluting technique with low water consumption and the solvent is fully recovered at the end of the synthesis of styrene-isoprene block copolymers and then reused. In this way the resource is preserved and the environment is not polluted with waste waters.
These block copolymers will be obtained with certain structures and physico-mechanical properties so that their melt alloying with recovered polypropylene will lead to high impact composites.
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
Terms and Conditions
[T: 0.3384, O: 126]