A5079078075- Photochemistry and Electron Transfer Studies
- Spectroscopy and Quantum Chemical Studies
- Surfactants and Colloidal Systems
- Conducting polymers and applications
- Natural Antidiabetic Agents Studies
- Protein Interaction Studies and Fluorescence Analysis
- Phytochemicals and Antioxidant Activities
- Analytical Chemistry and Sensors
- Phytochemistry and Biological Activities
- Essential Oils and Antimicrobial Activity
- Graphene and Nanomaterials Applications
- Molecular Junctions and Nanostructures
- Carbon and Quantum Dots Applications
- Porphyrin and Phthalocyanine Chemistry
- Adipokines, Inflammation, and Metabolic Diseases
- Electrochemical Analysis and Applications
- Advanced biosensing and bioanalysis techniques
- Wound Healing and Treatments
- Plant-Microbe Interactions and Immunity
- Liver Disease Diagnosis and Treatment
- Graphene research and applications
- Ethnobotanical and Medicinal Plants Studies
- Protein Hydrolysis and Bioactive Peptides
- Microbial Natural Products and Biosynthesis
- Nanoparticles: synthesis and applications
Assam Down Town University
2021-2025
Indian Institute of Technology Madras
2024
Institute of Advanced Study in Science and Technology
2019-2023
Tezpur University
2023
North East Institute of Science and Technology
2013-2019
University of Pittsburgh
2019
Maharaja Engineering College
2018
University of Calcutta
2017
Government of India
2014
Kobe University
2009
The
Abstract The increasing interest in bioactive peptides (BPs) for their potential disease control and health promotion has been accompanied by a lack of scalable processes purification, hindering commercial production. Membrane filtration, especially using polymeric membranes (PMs), emerged as promising technique BP separation due to its excellent performance, ease fabrication, flexibility. By utilizing natural sources, such chitosan, cellulose, lignin, gelatin, alginate, keratin, silk...
Exploring the possibility of familiar dietary sources as additional diabetes treatments is crucial, especially considering financial difficulties related to mellitus. Using both in vitro and silico techniques, this work aims assess antidiabetic benefits extract from Solanum lasiocarpum Dunal . The evaluations encompass ability scavenge DPPH radicals, inhibition α-amylase, α-glucosidase, DPP-4, cytotoxicity, glucose absorption kinetics. With an IC50 value 0.69 ± 0.14 mg/ml, S. showed...
The Phyllanthus genus, known for its therapeutic efficacy in traditional and folk medicine, has been extensively investigated anti‐inflammatory properties. This review systematically evaluates the existing literature on various species, with a focus their potential as medicinal agents managing inflammatory conditions. Notably, extracts, fractions, bioactive phytoconstituents, predominantly phenolic derivatives cleistanthane‐type diterpenoids from species such P. emblica, niruri, amarus,...
The fluorescence anisotropy decay of two dyes merocyanine 540 and oxazine 1 has been studied in a polymer−surfactant aggregate containing poly(vinylpyrrolidone) (PVP) sodium dodecyl sulfate (SDS). results are analyzed terms the necklace model aggregate. rotational motion probe is assumed to involve “wobbling-in-cone” along with translational micellar surface. It observed that presence polymer chains around spherical SDS micelles causes significant retardation both wobbling as well dyes. As...
Solvation dynamics of 2,6-p-toluidinonaphthalene sulfonate (TNS) is studied using picosecond time-resolved emission spectroscopy in an aqueous solution poly(vinylpyrrolidone) (PVP) and a polymer−surfactant aggregate consisting PVP sodium dodecyl sulfate (SDS). On addition to TNS, the quantum yield (φf) TNS increases about 210 times 0.75 wt % PVP. The solvation found be biexponential with major component (85%) 60 ps slower one 800 (15%). retardation dilute polymer compared that bulk water...
The effect of sodium salicylate (Na-sal) and cholate (Na-cholate) on the solvation dynamics in water pool aerosol-OT (AOT, dioctylsulfosuccinate) microemulsion n-heptane is reported. In absence any additive, 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) AOT microemulsions found to be biexponential with an average time (〈τs〉) 710 ps. pool, 〈τs〉 decreases 330 ps addition 1 mM Na-sal increases 3050 presence 100 Na-cholate. spectral width (Γ) time-resolved emission...
Solvation dynamics of a nonaqueous solvent, N,N-dimethylformamide (DMF) has been studied for the first time in β-cyclodextrin (β-CD) cavity using picosecond dependent fluorescence Stokes' shift and 4-aminophthalimide (4-AP) as probe. confined DMF molecules within β-CD is found to be described by component 400 ± 50 ps (25%) slow 8 1 ns (75%). This substantially slower than solvation (∼1 ps) bulk DMF.
The solvation dynamics inside an aggregate of a bile salt, sodium deoxycholate (NaDC), in aqueous solution has been studied using picosecond time-resolved emission spectroscopy and two fluorescent probes, 4-(dicyanomethylene)-2-methyl-(p-dimethylaminostyryl)-4H-pyran (DCM) 2,6-p-toluidinonaphthalenesulfonate (TNS). Addition NaDC to causes nearly 110-fold increase the quantum yield (φf) TNS. From variation φf TNS, critical micellar concentrations have detected at around 7 60 mM, respectively....