- Electrochemical sensors and biosensors
- TiO2 Photocatalysis and Solar Cells
- Electrochemical Analysis and Applications
- Plasma Diagnostics and Applications
- Advanced Photocatalysis Techniques
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Surface Modification and Superhydrophobicity
- Bone Tissue Engineering Materials
- Graphene and Nanomaterials Applications
- Catalytic Processes in Materials Science
- Gas Sensing Nanomaterials and Sensors
- Electrohydrodynamics and Fluid Dynamics
- Metal and Thin Film Mechanics
- Nanoparticle-Based Drug Delivery
- Diamond and Carbon-based Materials Research
- Advanced Nanomaterials in Catalysis
- Microfluidic and Capillary Electrophoresis Applications
- Advanced Sensor and Energy Harvesting Materials
- Biosensors and Analytical Detection
- Antenna Design and Analysis
- biodegradable polymer synthesis and properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Carbon and Quantum Dots Applications
Indian Institute of Technology Delhi
2023-2025
Banaras Hindu University
2017-2024
Indian Institute of Technology BHU
2022-2024
Centre for Cellular and Molecular Biology
2010-2020
Nanjing Institute of Vegetable Science
2018
University of Hyderabad
2016
Council of Scientific and Industrial Research
2014
University of Washington
2008-2009
CSIR National Physical Laboratory of India
2007-2008
National Physical Laboratory
2007-2008
Here we report a two-step programmable reduction of graphene oxide (GO) which was synthesized by oxidation graphite.
Despite the fact that carbohydrate microarray has seen increasing use within field of glycobiology, surface chemistry glycoarray remains largely unexplored. Motivated by need to develop analytical techniques characterize carbohydrate-modified surfaces, we developed a quantitative X-ray photoelectron spectroscopy (XPS) and plasmon resonance imaging (SPR imaging) method study glycan biosensors. We performed comparative analysis on relative coverage mixed self-assembled monolayers (SAMs) gold,...
Fluorescence sensors derived from inorganic fluorescent molecules have attracted enormous attention due to their easy processing and the tunability of chemical properties. However, fluorescence quenching mechanism π-electron density solution pH has been less explored. Covalently tuned graphene quantum dots (GQDs) with quantum-confined electrons efficiently detect 2,4,6-trinitrophenol (TNP) explosives. Herein, GQDs various sizes were designed by using a bottom-up synthesis approach. The was...
Abstract The paper explores the design and analysis of a wideband microstrip patch antenna with metallic 3 × split ring resonator (SRR) array operating in 0.1–5 THz frequency range. antenna's structure incorporates different conductive materials such as gold, silver, graphene patch. dimensions SRR are calculated to achieve operation within desired enhances electromagnetic resonance, thereby improving bandwidth radiation characteristics for medical imaging. study discusses equivalent circuit...
This paper presents cancer tumor detection in the breast phantom and tissue excised by ultra-wideband terahertz microstrip patch antenna. The proposed antenna structure consists of a silicon dioxide substrate with dielectric constant 3.9 thickness 200 µm, radiating gold length 560 width 700 36 µm which is on top substrate, an array 6 × Split Ring Resonator at ground plane. Each SRR separated 28.75 µm. An antenna's plane enhances bandwidth, efficiency, gain, directivity reduces back...
Ordered and self-organized nano-array structures have been developed by Mn 2+ doping in TiO 2 thin fi lms deposition on conducting substrates dip coating technique.Mn doped exhibits better bioactivity for enzyme immobilization cyclic voltammetry measurement has used qualitative characterization of electrochemical induction oxidation-reduction process lms.Due to presence ions at lm surface, current voltage characteristic matrix was enhanced a factor ten it had also reduced the crystallite...
Graphene gold composites were synthesized by ultrasonication assisted <italic>in situ</italic> reduction of diffused chloride within hydrazine reduced graphene oxide sheets without surface modification or functionalization with organic molecules.
Glycopolymers with three different pendant alkyl chain lengths (0, 4 and 6) of conjugated glucose moieties were prepared by deacetylation synthesized acetylated polymers their<italic>in vitro</italic>responses osteoblast cell adhesion, viability proliferation investigated. The increase in spacer length moiety the glycopolymer had enhanced cytocompatibility even at higher concentration.