DR ABHA VERMA

EDUCATION

Ph. D Biotechnology

RESEARCH INTERESTS

Antimicrobials, Nanotechnology, Probiotics

Scopus Publications

Nanocatalytic Application of the Green Synthesized Silver Nanoparticles for Enhancement of the Enzymatic Activity of Fungal Amylase and Cellulase




Effect of surface treatment on tribological characteristic of ferrite nanoparticles epoxy composites
Ashtosh Kumar Singh, M. G. H. Zaidi, Rakesh Saxena, Rajeev Suman, Peeyush Maheshwari, H. P Gangwar, K. S. Rawat, and A. Verma
IOP Publishing
Abstract In this investigation, surface treatment of ferrite nanoparticles were efficiently prepared by using amino propyl silane (APS). XRD which is a spectral analysis technique used for investigate the morphology and chemical structure of treated and normal ferrite nanoparticles. Ferrite nanoparticles epoxy composites were prepared by Modified ferrite nanoparticles (MFNs) with varying weight percentage and ferrite nanoparticles (FNs). XRD shown that MFNs was effectively modified with highly crystalline structure and silane surface treatment decreased the average particle size of FNs to ∼ 16.48 nm. Surface treatment of FNs enhanced the homogeneous dispersion of ferrite in epoxy resin and improved interfacial adhesiveness between MFNs and epoxy. Tribological property of Modified ferrite nanoparticles epoxy composite (MFNEs) compare to cured epoxy and normal ferrite nanoparticles epoxy composites (FNEs) has been enhanced due to surface treatment.


A study to evaluate the effect of phyto-silver nanoparticles synthesized using Oxalis stricta plant leaf extract on extracellular fungal amylase and cellulase
Jyoti Singh, Neelesh Kapoor, and Abha Verma
Elsevier BV



Activity of silver nanoparticles synthesized using aqueous leaf extract of Solanum Nigrum against potential human pathogenic bacteria




Antibacterial activity of silver nanoparticles synthesized using weeds
Gautam Kumar, Abha Verma, Prakash Joshi, and Arvind Arya
Diva Enterprises Private Limited
Biologically synthesized silver nanoparticles are being widely used in the field of medicine. This report focuses on extracellular biosynthesis of silver nanoparticles using leaf extracts of four commonly occurring weed. The synthesis of silver nanoparticles was detected by changing colour of plant leaf extracts from green to brown after treatment with AgNO3 and UV-Vis spectrophotometric analysis. These phyto-synthesized silver nanoparticles were tested for their antibacterial activity using agar well diffusion method. The test bacteria were E. coli, Staphylococcus aureus and Bacillus sp. Among all the test organisms Bacillus sp. followed by Staphylococcus aureus were found to be susceptible to all the silver nanoparticles with maximum inhibition by Sonchus asper whereas E. coli was least affected. The results suggest use of phytoextracts as an easy alternative for silver nanoparticles synthesis over the conventional methods.