International Journal of Chemical Studies
Vol. 1, Issue 6 (2014)
Green synthesis and antimicrobial activity of silver nanoparticles from Calotropis gigantea, Catharanthus roseus, Chitin and Chitosan
Author(s): Krishnaveni.B and Priya.P
Abstract: Silver nanoparticles (AgNPs) due to biocompatibility, antibacterial action and its various applications in the field of electronics, optical, magnetic have attracted considerable attention. In this study crystalline silver nanoparticles were successfully produced from silver nitrate using Calotropis gigantea extract,Catharanthus roseusextract and polysaccharides-Chitin and Chitosan. The AgNPs were characterized using UV-visible spectroscopy. The antibacterial activity against different pathogens (Escherichia coli, Staphylococcus aureus) and growth kinetics for Bacillus subtilis, Klebsiella pneumonia were reported. The zone of inhibition is observed both in gram positive and gram negative bacterial strains. They were found to have considerable inhibitory action against the four mentioned microorganisms.
Fig. 1: Photograph of C. gigantea nanoparticles, Chitin (CH) and Chitosan (CS) Bio-nanocomposites.
Pages: 10-20 | 1231 Views 27 Downloads
How to cite this article:
Krishnaveni.B, Priya.P. Green synthesis and antimicrobial activity of silver nanoparticles from Calotropis gigantea, Catharanthus roseus, Chitin and Chitosan. Int J Chem Stud 2014;1(6):10-20.