BrainMap

Mrs. Mariana Chelu

Researcher

Researcher - INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU

Researcher

Web of Science ResearcherID: JCE-7060-2023

Expertise & keywords

3D laser printed absorbable scaffolds with a prolonged biomechanical stability in human body fluids. Call name: P 4 - Proiecte de Cercetare Exploratorie, 2020
PN-III-P4-ID-PCE-2020-0992 2021 - 2023

Role in this project:

Coordinating institution: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU

Project partners: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO)

Affiliation:

Project website: https://www.icf.ro/pr_2020/PCE-234-2021/index.html

Abstract:

Novel biomaterials for temporary orthopedic implants are one of the most challenging areas of exploratory research in advanced materials. Third generation biomaterials are designed to be both resorbable and bioactive, that is, the implant will be temporary, and once implanted, it will help the body heal itself. The aim of this project is to progress toward a novel absorbable scaffold biomaterial for temporary orthopedic implants, through hierarchically structured surfaces that protect the scaffold, effective to convey higher corrosion tolerance and increased scaffold strength retention for extended periods in body fluids while at the same time capable to stimulate human osteoblast cell proliferation behavior. Specific objectives are (i) the design and fabrication of 3D printed scaffold structures with biocompatible elements by rapid solidification from melt through laser additive manufacturing-3D printing; (ii) the development of original cost-effective surface modification procedures for surface protected scaffolds (SPS) with enhanced corrosion tolerance and bioactivity; (iii) the determination of bare and SPS corrosion rates and corrosion mechanisms in human physiological fluids of pH and chloride concentrations reproducing the most exigent conditions for implant use; and (iv) the assessment of the scaffold-cell constructs to initiate tissue repair processes and osteogenesis; contributing to Romanian research with: 1 patent, 4 scientific articles, 6 conference presentations

Micro-nanotechnologies for monitoring of greenhouse gases Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2019-2073 2020 - 2022

Role in this project:

Coordinating institution: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU

Project partners: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO); INSTITUTUL NATIONAL DE CERCETARE- DEZVOLTARE PENTRU MICROTEHNOLOGIE - IMT BUCURESTI INCD (RO)

Affiliation: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO)

Project website: http://www.icf.ro/pr_2019/TECH4GREEN/index.html

Abstract:

The main purpose is the monitoring of greenhouse gases which are directly linked with the human activities. To this scope the project will develop a new technology for the fabrication of smart, miniaturized sensor array for greenhouse gases monitoring. A microsensors array based on alumina transducers and MOx (metal oxides) and polymer materials will be developed. The targeted gases considered as main contributors to the greenhouse effect, are methane, ozone, carbon dioxide and water vapors. The microtransducers are made up of alumina µ-chips with interdigitated gold electrodes on top (front side of the transducer) and platinum microheater on the backside. The microsensors array will contain undoped and doped MOx sensitive films (SnO2, ZnO, SnO2-ZnO, CuO) and polymers deposited by safe and low-cost chemical routes (sol-gel and hydrothermal method).

The novelty of the project consists of: a) the significant improvement of properties of the proposed materials by controlling the nanometer-level architecture oxide (nanowires) and by utilizing the multilayered mixed structure containing MOx and polymeric films; b) new technology for microsensors fabrication on thin alumina with very low power consumption. A laboratory platform and a mobile apparatus for gas detection will be tested. In Romania a project focused on monitoring of greenhouse gases, comprising detection, correlated with geographical and environmental conditions, data acquisition and interpretation is new. The two years duration will allow to optimize and to demonstrate the technology up to TRL 4, to fabricate the sensors (TRL 4), to start the data acquisition and interpretation. All these developments will allow a long-term prediction algorithm for pollution evolution, geographical mapping of areas with the highest pollution, prediction of local and global warming, under different RCP scenarios (Representative Concentration Pathways), monitoring of local evolution of these gases.

Smart Portable System for VOCs detection Call name: P 3 - SP 3.2 - Proiecte ERA.NET
ERANET-M.-VOC-DETECT 2019 - 2022

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE- DEZVOLTARE PENTRU MICROTEHNOLOGIE - IMT BUCURESTI INCD

Project partners: INSTITUTUL NATIONAL DE CERCETARE- DEZVOLTARE PENTRU MICROTEHNOLOGIE - IMT BUCURESTI INCD (RO); INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO); NANOM MEMS SRL (RO); Institute for Technical Physics and Materials Science (MFA), Centre for Energy Research, Hungarian Academy of Sciences (HU)

Affiliation: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO)

Project website: https://www.imt.ro/voc-detect

Abstract:

Most human environments are characterised by the presence of a large number of chemical substances which mainly belong to the group of volatile organic compounds (VOC). Numerous studies revealed the toxic and carcinogenic effects of these VOCs which usually can be found in indoor air, but the tools for the detection of VOCs are still not very precise and too expensive.

The project will develop new sensors based on nano MOX and CNT materials for VOC detection, integrated into a smart portable system providing quantitative information about the concentration of Formaldehyde and Benzene in indoor air.

The results will be:

- Technology demonstrator and Smart, portable system prototype and new formaldehyde and benzene sensors;

- Technology for thin sensitive films deposition and integration in the microtechnology steps flow for sensors fabrication on silicon – Demonstration;

- E-Nose system, including sensor array, data processing algorithms and software for VOCs accurate detection.

Sustainable autonomous system for nitrites/nitrates and heavy metals monitoring of natural water sources Call name: P 3 - SP 3.2 - Proiecte ERA.NET
M-ERA.NET-WaterSofe 2016 - 2018

Role in this project:

Coordinating institution: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU

Project partners: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO); NANOM MEMS SRL (RO); INSTITUTUL NATIONAL DE CERCETARE- DEZVOLTARE PENTRU MICROTEHNOLOGIE - IMT BUCURESTI INCD (RO); UNIVERSITATEA TRANSILVANIA BRASOV (RO)

Affiliation: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO)

Project website: http://www.icf.ro/pr_2016/WaterSafe/index.html

Abstract:

The project sets to develop a new energy autonomous system based on (photo)electrochemical sensors for detection of different ionic species in natural water sources and ultra-thin solar cells (UTSC). It focuses on three directions: high efficiency, new materials in solar energy harvesting and fabrication of small UTSC and the power stabilizing device able to supply the needed voltage to the sensors and electronic module; new microsensors for detection of nitrites/nitrates and heavy metals in water; low cost autonomous energy system integration and fabrication.

The harvester will include a UTSC, a dedicated storage and a power stabilizing device. SnO2, TiO2, ZnO materials will be optimised for sensors and (TiO2, ZnO,CuxS)or(CZTS, CuxS, TiO2) for the solar cells. Bacterial flagellar filaments will be investigated and engineered as sensitive biolayer for heavy metal detection. The project will provide a technology demonstrator and water monitoring system prototype.

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