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Biosynthesis of metal and oxide nanoparticles using Lactobacilli from yoghurt and probiotic spore tablets
Author(s) -
Jha Anal K.,
Prasad K.
Publication year - 2010
Publication title -
biotechnology journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.144
H-Index - 84
eISSN - 1860-7314
pISSN - 1860-6768
DOI - 10.1002/biot.200900221
Subject(s) - probiotic , nanoparticle , metal , biosynthesis , transmission electron microscopy , oxide , lactobacillus , titanium oxide , titanium dioxide , chemistry , nuclear chemistry , materials science , food science , bacteria , nanotechnology , biochemistry , biology , organic chemistry , metallurgy , fermentation , enzyme , genetics
Green, low‐cost, and reproducible Lactobacillus ‐mediated biosynthesis of metal and oxide nanoparticles are reported. Silver and titanium dioxide nanoparticles are synthesized using Lactobacillus sp. procured from yoghurt and probiotic tablets. The synthesis is performed akin to room temperature in the laboratory ambience. X‐ray and transmission electron microscopy analyses are performed to ascertain the formation of metallic and oxide nanoparticles. Individual nanoparticles having the dimensions of 10–25 nm (n‐Ag) and 10–70 nm (n‐TiO 2 ) are found. The mechanism involved for the synthesis of metallic and oxide nanoparticles has also been discussed.