Facile biological approach for immobilization, physicochemical characterization and antibacterial activity of noble metals nanocomposites

TitleFacile biological approach for immobilization, physicochemical characterization and antibacterial activity of noble metals nanocomposites
Publication TypeJournal Article
Year of Publication2015
AuthorsParveen, A, Ali, T, Wahid, M, Rao, S
JournalMaterials Letters
Volume148
Pagination86-90
Date PublishedJUN
ISSN0167-577X
KeywordsAlginate, Antibacterial, Bio-nanocomposites, Cassia auriculata, Characterization, Nanoparticles
Abstract

The use of biopolymer as template to regulate metallic nanoparticles is promising field in green nanotechnology. We have designed a facile biological way for rapid synthesis and immobilization of gold and silver nanoparticles on alginate films using leaf extract of Cassia auriculata. The prepared gold bio-nanocomposite (Au-BNC) and silver bio-nanocomposite (Ag-BNC) were characterized by UV-vis spectroscopy, Fourier transform infrared spectroscopy, Transmission electron microscopy and Thermal analysis. The bio-nanocomposites exhibited good antibacterial activity against both gram positive (Bacillus subtilis) and gram negative (Escherichia coli) bacteria. The metal nanoparticle embedded films have number of applications in catalysis, optical biosensors, electronic, biomedical devices and environmental remediation. (C) 2015 Elsevier B.V. All rights reserved.

DOI10.1016/j.matlet.2015.02.059
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)2.437
Divison category: 
Physical and Materials Chemistry