Nano Archive

Coalescence of Nanoclusters and Formation of Submicron Crystallites Assisted by Lactobacillus Strains

Nair , Binoj and Pradeep, T. (2002) Coalescence of Nanoclusters and Formation of Submicron Crystallites Assisted by Lactobacillus Strains. Crystal Growth & Design, 2 (4). pp. 293-298.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/cg0255164

Abstract

Lactobacillus strains, common in buttermilk, assist the growth of gold, silver, and gold−silver alloy crystals of submicron dimensions upon exposure to the precursor ions. Several well-defined crystal morphologies are observed. Crystal growth occurs by the coalescence of clusters, and tens of crystals are found within the bacterial contour. Crystal growth does not affect the viability of the bacteria. Crystals are presumably nucleated through nanoclusters, which are formed within as well as transported into the bacteria. Biomass with the crystals can be harvested completely. Results point to potential applications in analytical chemistry, nanotechnology, medicine, and metal ion recovery. Coalescence appears to be a route by which surface area of the crystal is reduced so that it can be effectively protected to avoid biological damage.

Item Type:Article
Subjects:Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:4506
Deposited By:JNCASR
Deposited On:02 Apr 2009 05:16
Last Modified:02 Apr 2009 05:16

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