Technical (Virtual) Event / Bucharest / 15th of December 2021 / 16:00-18:00 EET
Registration
Dr. Carmen MOLDOVAN / Smart nanoelectronic devices for human exposure monitoring
Abstract:
It is well-acknowledged that more than 90% of human diseases come from two sources: individual genetic factors encoded in the genome, and from the exposome, dealing essentially with environmental factors and lifestyle. The human exposome monitoring is a huge attempt to understand the complex image of human health in connection with the accumulated exposures to various risk factors in the environment, throughout life.
To do this, we need to find solutions to monitor the totality of exposures to which an individual is subjected from conception to death, including those resulting from environmental agents, socioeconomic conditions, lifestyle, diet, and endogenous processes, to collect huge amount of data, to look at the data interpretation. and moreover to do this in a noninvasive and accepted way for the subjects. At the end we should be able to predict the diseases, to identify the harmful factors and to assess the risks for health.
The presention will focus the early concept and implementation at IMT, with the help of smart nanoelectronic devices and systems for environmental exposure (sensors for air pollutants, Water, Food, Radiation) and biological information acquisition (sensors for blood pressure, heart rate, oxygen, temperature, glucose, different markers) integrated in portable platforms or wearable systems.
Professor Cristian RAVARIU / Thin film transistors with Nano-Core Shell technologies
Abstract:
A green synthesis is depicted for organic transistors based on para-aminobenzoic acid (PABA) grafted to ferrite nanoparticles, as p-type film. The obtained core–shell nanoparticles (NCS) can be investigated by DLS, SEM, TEM. Both average hydrodynamic diameter and zeta potential of synthesized PABA-NCS nanoparticles has been identified, indicating a good stability of this nano-compound. SEM analysis proved a heterogeneous structured material with quasi-uniform granular formations in size, while TEM revealed a nano-core of 20 nm. The measurements of output characteristics in the saturation regime and transfer characteristics at negative gate voltages have proved that an organic transistor based on PABA-NCS. The current increasing over a negative threshold voltage demonstrated an accumulation channel onset, as argument for the p-type behavior of the PABA-NCS film.
Similar measurements are presented for SSA as external organic shell to ferrite nano-core, emphasizing n-type behavior of the SSA-NCS film.