- Analytical Chemistry and Sensors
- Electrochemical Analysis and Applications
- Advanced Chemical Sensor Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Spectroscopy and Quantum Chemical Studies
- Microfluidic and Bio-sensing Technologies
- GABA and Rice Research
- Electrochemical sensors and biosensors
- RNA and protein synthesis mechanisms
- Electrowetting and Microfluidic Technologies
- Spectroscopy and Chemometric Analyses
- Lipid Membrane Structure and Behavior
- Identification and Quantification in Food
- X-ray Diffraction in Crystallography
- Electrostatics and Colloid Interactions
- Erythrocyte Function and Pathophysiology
- Genomics and Phylogenetic Studies
- Photoreceptor and optogenetics research
- Crystallization and Solubility Studies
- Terahertz technology and applications
- Biosensors and Analytical Detection
- Electrical and Bioimpedance Tomography
- Plant and Biological Electrophysiology Studies
- Prion Diseases and Protein Misfolding
- Fractal and DNA sequence analysis
Indian Institute of Engineering Science and Technology, Shibpur
2024
University of Calcutta
1977-2024
S.N. Bose National Centre for Basic Sciences
2022-2024
Block Engineering (United States)
2023
Vidyasagar University
2018-2023
National Institute of Technology Durgapur
2012
Abstract A modeling and simulation study along with economic analysis was carried out for arsenic separation by a membrane-integrated hybrid treatment system that consisted of an oxidation unit integrated cross flow nanofiltration membrane module. About 96–98% removal efficiency achieved in the module after pre-oxidation. When pH increased from 3 to 10, rejections reached as high 98.5%. The dynamic mathematical model developed used Extended Nernst-Plank equation basis model. linearized...
The joining of bimetallic trinuclear nodes, [(CuL1)2Cd] (where H2L1 = N,N′-bis(α-methylsalicylidene)-1,3-propanediamine) by a spacer, 4,4′-benzenedicarboxylic acid (H2L2), produced two isomeric one-dimensional coordination polymers, having molecular formula {[(CuL1)2CdL2]·H2O}n. Structural characterization revealed that, in complex 1, one the oxygen atoms each carboxylate group linker [L2]2– coordinates only to central Cd(II) atom node η1 fashion. However, 2, both coordinate metal centers,...
The current work focuses on the basic principle of voltage-induced electrowetting and relevant movement microfluidic droplets. prototype devices are fabricated Teflon-on-flexible substrate. Three different liquid droplets, namely, de-ionized (DI) water, sucrose (aq.) solution, eugenol, have been studied for such purpose within voltage range 1–16 V. Electrowetting subsequent changes in contact angle extensively investigated with modification “work adhesion” cohesion” upon application external...
This study analyses the possibility of on-chip detection and quantification soap as an adulterant into cow milk by employing Electrical Impedance Spectroscopy (EIS). technique provides a simple, rapid, precise cost-effective platform for quality monitoring. Variation electrical parameters including impedance, capacitance, conductance current 0.1%, 0.3%, 0.5%, 0.7% 0.9% (w/w) adulteration in are analyzed. The observed to increase whereas impedance has been found decrease with increasing...
Abstract The impedance, capacitance and conductance of deionized water-glucose polar solution is measured by employing impedance spectroscopy a quasi-oscillatory nature variation with glucose content in the observed. Such attributed to randomly distributed water-water, glucose-glucose dipole interactions at molecular level solution. A relevant analytical model developed on basis such random distribution dipoles experimental data agree well those obtained from theoretical model. electrical...
Abstract The present work deals with fabrication and characterization of the zinc oxide (ZnO) nanowire based novel two‐electrode capacitive biosensors on flexible Polyethylene terephthalate (PET) substrates for accurate estimation glucose by analyzing fundamental dielectric nature relevant sample. morphology crystalline quality grown nanowires are analyzed using field‐emission scanning electron microscope (FESEM) X‐ray diffractometer (XRD), respectively. Current capacitance values device...
An elevated level of creatinine (CRN) is a mark kidney ailment, and prolonged retention such condition could lead to renal failure, associated with severe ischemia. Antioxidants are clinically known excrete CRN from the body through urine, thereby reducing its in blood. The molecular mechanism an exclusion process still illusive. As excretion channel solvation solute expected play pivotal role. Here, we report detailed time-domain frequency-domain terahertz (THz) spectroscopic investigation...
The impedance, capacitance and conductance of aqueous sucrose polar solution are measured by employing impedance spectroscopy method the current passing through system for different DC voltages implementing I-V method. variation electrical parameters with content in such exhibits a quasi-oscillatory nature, which is attributed to random orientation water dipoles their mutual interactions at molecular level, including water-water, water-sucrose sucrose-sucrose dipole interactions. To justify...
An on-chip analysis has been performed to develop a comprehensive understanding on the effect of shape alteration and lysis bio-dielectric nature human erythrocytes. Impedance/capacitance spectroscopy, along with current-voltage (I-V) measurements executed observe variations in dielectric parameters for normal disc-biconcave spherical erythrocytes (namely, discocytes spherocytes respectively). Current-time (I-t) are erythrocyte suspensions exposed under an external electric field possible...
This study focuses on the development of a super-hydrophobic layer containing chemically extracted bio-waxes from lotus and taro leaves silicon (Si) substrates. Scanning Electron Microscopy (SEM) Fourier Transform Infrared Spectroscopy (FT-IR) have been performed to observe structural properties compositional functional groups relevant bio-waxes. Contact angle measurement is used determine hydrophobicity surfaces by measuring respective contact angles at interface liquid bio-wax coated...