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Title of Journal: Biotechnol Lett

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Abbravation: Biotechnology Letters

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Springer Netherlands

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DOI

10.1016/j.bbapap.2005.12.002

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1573-6776

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Aerobic microbial manufacture of nanoscale seleniu

Authors: N Tejo Prakash Neetu Sharma Ranjana Prakash Kuldeep K Raina Jonathan Fellowes Carolyn I Pearce Jonathan R Lloyd Richard A D Pattrick
Publish Date: 2009/08/19
Volume: 31, Issue: 12, Pages: 1857-
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Abstract

The potential of the environment to yield organisms that can produce functional bionanominerals is demonstrated by seleniumtolerant aerobic bacteria isolated from a seleniferous rhizosphere soil An isolate NS3 was identified as a Bacillus species EU5737741 based on morphological and 16S rRNA characterization This strain reduced SeIV under aerobic conditions to produce amorphous α Se0 nanospheres A roomtemperature washing treatment was then employed to remove the biomass and resulted in the production of clusters of hexagonal Se0 nanorods The Se0 nanominerals were analyzed using electron microscopy and Xray diffraction techniques This Bacillus isolate has the potential to be used both in the neutralizing of toxic SeIV anions in the environment and in the environmentally friendly manufacture of nanomaterialsThe authors acknowledge the Chris Boothman Alastair Bewsher and Steve Caldwell of Williamson Centre for Molecular Environmental Sciences for facilitating Molecular ion chromatography and ESEM analysis NTP acknowledges ErasmusMundus Programme for funding MESPOM Visiting Scholarship for carrying out research work at University of Manchester United Kingdom and Defence Research and Development Organization India for research grant and fellowship to Ms Sharma

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