Journal
COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 86, Issue 2, Pages 314-318Publisher
ELSEVIER
DOI: 10.1016/j.colsurfb.2011.04.014
Keywords
Polyhydroxyalkanoate (PHA); Silver nanoparticles; Bacillus circulans; Colloids
Funding
- Oil and Natural Gas Corporation (ONGC) of India
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Polyhydroxyalkanoate (PHA) was produced by growing Bacillus circulans (MTCC 8167) in the specific detection medium. The identification of the polymer as PHA was confirmed by fluorescence microscopy. The PHA was purified and characterized using FT-IR. The silver nanoparticles (SNP) were synthesized from AgNO3 in the dispersed colloids of PHA (0.085%) using NaBH4 (sodium borohydrate as reducing agent). The stability was tested using wave length scanning with a UV-Vis spectrophotometer and finally with transmission electron microscopy. The PHA stabilized solution was found to be stable for 30 days as against the low stability of silver nanoparticles (SNP) solution alone. (C) 2011 Elsevier B.V. All rights reserved.
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