A5006276235- Graphene research and applications
- Graphene and Nanomaterials Applications
- Microfluidic and Bio-sensing Technologies
- Advanced biosensing and bioanalysis techniques
- Electrochemical sensors and biosensors
- Carbon Nanotubes in Composites
- Luminescence Properties of Advanced Materials
- Microfluidic and Capillary Electrophoresis Applications
- Electrochemical Analysis and Applications
- Neuroscience and Neural Engineering
- Gas Sensing Nanomaterials and Sensors
- Cancer Cells and Metastasis
- Polymer Nanocomposite Synthesis and Irradiation
- 3D Printing in Biomedical Research
- Analytical Chemistry and Sensors
- Microbial Inactivation Methods
- Biosensors and Analytical Detection
- SARS-CoV-2 detection and testing
- Nanoparticles: synthesis and applications
- Polymer Nanocomposites and Properties
- Surface Modification and Superhydrophobicity
- ZnO doping and properties
- Quantum Dots Synthesis And Properties
- Nanowire Synthesis and Applications
- Fluid Dynamics and Heat Transfer
National Institute for Research and Development in Microtechnologies
2016-2025
Universitatea Națională de Știință și Tehnologie Politehnica București
2018-2022
University of Agronomic Sciences and Veterinary Medicine of Bucharest
2019
Transylvania University of Brașov
2019
In recent years, field-effect transistors (FETs) based on graphene have attracted significant interest due to their unique electrical properties and potential for biosensing molecular detection applications. This study uses FETs with a nanocrystalline graphite (NCG) channel detect DNA nucleobases. The exceptional electronic of NCG, its high surface area, enable strong π–π stacking interactions nucleobases, promoting efficient adsorption stabilization the biomolecules. direct attachment...
Screen-printed electrodes-based sensors can be successfully used to determine all kinds of analytes with great precision and specificity. However, obtaining a high-quality sensor difficult due factors such as lack reproducibility, surface contamination or other manufacturing challenges. An important step in ensuring reproducible results is the cleaning step. The aim current work help researchers around world who struggle finding most suitable method for screen-printed electrodes. We...
Here, we reported a study on the detection and electrical characterization of both cancer cell line primary tumor cells. Dielectrophoresis (DEP) impedance spectroscopy (EIS) were jointly employed to enable rapid label-free differentiation various cells from normal ones. The that collected two colorectal patients, lines (SW-403, Jurkat, THP-1), healthy peripheral blood mononuclear (PBMCs) trapped first at level interdigitated microelectrodes with help dielectrophoresis. Correlation dielectric...
The study and discovery of bioactive compounds new formulations as potential tools for promoting the repair dermoepidermal tissue in wound healing is continuing interest. We have developed a formulation amorphous hydrogel based on sodium alginate (NaAlg); type I collagen, isolated by authors from silver carp tails (COL); glycerol (Gli); Aloe vera gel powder (AV); nanoparticles obtained green synthesis with aqueous Cinnamomum verum extract (AgNPs@CIN) vitamin C, respectively. texture...
The progress of advanced materials has invoked great interest in promising novel biosensing applications. Field-effect transistors (FETs) are excellent options for devices due to the variability utilized and self-amplifying role electrical signals. focus on nanoelectronics high-performance biosensors also generated an increasing demand easy fabrication methods, as well economical revolutionary materials. One innovative used applications is graphene, account its remarkable properties, such...
The selective and rapid detection of tumor cells is critical consequence for the theragnostic field tumorigenesis; conventional methods, such as histopathological diagnostic often require a long analysis time, excessive analytical costs, complex operations, qualified personnel deliver many false-positive results. We are considering new approach an electrochemical biosensor based on graphene, which evidenced to be revolutionary nanomaterial enabling specific capture cells. In this paper, we...
The interest for polymer based nanocomposite materials has increased exponentially in the recent years, success being ensured by special properties and wide range of applications across multiple high-end industrial areas. This paper presents main components needed synthesis with particular characteristics analyzes development perspectives order to extend aerospace sector.Research shown that there are great challenges opportunities nanocomposites, efforts improve their multifunctional...
In recent research, 3D printing has become a powerful technique and been applied in the last few years to carbon-based materials. A new generation of 3D-printed electrodes, more affordable easier obtain due rapid prototyping techniques, emerged. We propose customizable fabrication process for flexible (and rigid) biosensors, from biosensor design printable conductive inks. The electrochemical biosensors were obtained on 50 µm Kapton® (polyimide) substrate transferred 500 PDMS substrate,...
The present microfluidic study is emphasizing the flow behavior of two immiscible fluids within a Y shape micro-bifurcation with inlets and one outlet. We report here numerical investigation on interface dynamics manifested at different capillary numbers (Ca), by variation rate ratios (FRR) over inlets. patterns are found to be in good agreement experimental manifestations. demonstrated numerically that Ca has an important impact droplet frequency formation. Changing only FRR inlets,...
Electrochemical sensors based on vertically oriented graphene (VG) have gained attention in recent years due to the unique properties of VG, such as its large surface area, biocompatibility, and high electrical conductivity. In this paper, we studied an electrochemical sensor with interdigitated electrodes modified VG essential interface for identification two types human colon adenocarcinoma cells: SW403 (high invasiveness) HT29 (low invasiveness). Both cell lines epithelial morphology,...
Graphene exhibit remarkable optical and electric properties that makes it versatile for different applications, with special attention in the industry. single layer has been obtained methods on arbitrary substrates. In device application, essential step is transfer of graphene a specific substrate, without metal catalyst. this research, was grown copper catalyst using chemical vapour deposition (CVD) method transferred to dielectric substrate (quartz), by etching method. The material...
Circulating tumor cells (CTCs) are present in the blood stream during metastasis process. They can originate from primary or secondary tumors. be used for early diagnosis they prognosis evaluation and even treatment efficiency evaluation. captured based on specific antigens found their surface that differ those of normal cells, using electrical signatures dielectrophoresis also induced magnetic properties magnetophoresis. In this paper we describe a method synthesizing functionalizing...
The yttrium aluminum garnet (Y3Al5O12 or YAG) is one of the best-known synthetic garnets which by doping with different metal ions can be used in applications increasingly various fields, from jewelry to optoelectronics, biotechnologies aerospace area. Under strict control composition and morphology, sintering cerium trivalent doped YAG was attempted, using molecular species, both inorganic organic, as precursors, but for emitting optoelectronics there only solid state process method...
Graphene is a two-dimensional wonder material, used for electronic and medical applications. To date, various synthesis method of graphene layers proposed, such as: SiC epitaxial growth, Chemical Vapor Deposition (CVD) mechanical exfoliation. single layer can be rapidly produced by CVD. Although the transfer process on different substrates has been researched, post-processing step after growth understanding influence radical carbon unreacted in properties not studied. metal transition...
Recently, graphene as a material for sensors has attracted attention due to unique properties, such as: excellent electrical and thermal conductivity, chemical stability, high surface area Young�s modulus ̴ 1GPa, very promising electrochemical applications. Electrochemical based on have been used in many applications, biomolecules, gases or metal ions detection. Here, we report the effect of morphology orientation electrode with method. We investigated capacitive performance case horizontal...
Monitoring and controlling infection is required in order to prevent the progression of coronavirus severe acute respiratory syndrome 2(SARS-CoV-2). To accomplish this goal, development implementation sensitive, quick accurate diagnosti