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Title: Facile biosynthesis of phosphate capped gold nanoparticles by a bacterial isolate Stenotrophomonas maltophilia

Abstract

We report intracellular biosynthesis of gold nanoparticles (GNPs) by a strain Stenotrophomonas maltophilia (AuRed02) isolated from the soil samples of Singhbhum gold mines, India. An aqueous solution of gold chloride was reduced to metallic gold in a suspension of disrupted cell mass of AuRed02, which progressively turns into cherry red within 8 h of incubation at 25 deg. C. The optical spectrum showed the plasmon resonance at 530 nm and analysis by transmission electron microscopy and dynamic light scattering confirmed the formation of around 40 nm GNPs. Zeta potential and Fourier transform infrared measurements confirmed GNPs are capped by negatively charged phosphate groups of NADP.

Authors:
; ;  [1]; ; ; ;  [2]
  1. Institute of Microbial Technology (CSIR), Sector 39-A, Chandigarh 160036 (India)
  2. Department of Material Science and Engineering and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208 (United States)
Publication Date:
OSTI Identifier:
21308696
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 94; Journal Issue: 23; Other Information: DOI: 10.1063/1.3141519; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AQUEOUS SOLUTIONS; BIOPHYSICS; BIOSYNTHESIS; FOURIER TRANSFORMATION; GOLD; GOLD CHLORIDES; INFRARED SPECTRA; LIGHT SCATTERING; NANOSTRUCTURES; PARTICLES; PHOSPHATES; SUSPENSIONS; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Nangia, Yogesh, Wangoo, Nishima, Raman Suri, C, Sharma, Saurabh, Wu, J -S, Dravid, Vinayak, and Shekhawat, G S. Facile biosynthesis of phosphate capped gold nanoparticles by a bacterial isolate Stenotrophomonas maltophilia. United States: N. p., 2009. Web. doi:10.1063/1.3141519.
Nangia, Yogesh, Wangoo, Nishima, Raman Suri, C, Sharma, Saurabh, Wu, J -S, Dravid, Vinayak, & Shekhawat, G S. Facile biosynthesis of phosphate capped gold nanoparticles by a bacterial isolate Stenotrophomonas maltophilia. United States. https://doi.org/10.1063/1.3141519
Nangia, Yogesh, Wangoo, Nishima, Raman Suri, C, Sharma, Saurabh, Wu, J -S, Dravid, Vinayak, and Shekhawat, G S. 2009. "Facile biosynthesis of phosphate capped gold nanoparticles by a bacterial isolate Stenotrophomonas maltophilia". United States. https://doi.org/10.1063/1.3141519.
@article{osti_21308696,
title = {Facile biosynthesis of phosphate capped gold nanoparticles by a bacterial isolate Stenotrophomonas maltophilia},
author = {Nangia, Yogesh and Wangoo, Nishima and Raman Suri, C and Sharma, Saurabh and Wu, J -S and Dravid, Vinayak and Shekhawat, G S},
abstractNote = {We report intracellular biosynthesis of gold nanoparticles (GNPs) by a strain Stenotrophomonas maltophilia (AuRed02) isolated from the soil samples of Singhbhum gold mines, India. An aqueous solution of gold chloride was reduced to metallic gold in a suspension of disrupted cell mass of AuRed02, which progressively turns into cherry red within 8 h of incubation at 25 deg. C. The optical spectrum showed the plasmon resonance at 530 nm and analysis by transmission electron microscopy and dynamic light scattering confirmed the formation of around 40 nm GNPs. Zeta potential and Fourier transform infrared measurements confirmed GNPs are capped by negatively charged phosphate groups of NADP.},
doi = {10.1063/1.3141519},
url = {https://www.osti.gov/biblio/21308696}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 23,
volume = 94,
place = {United States},
year = {Mon Jun 08 00:00:00 EDT 2009},
month = {Mon Jun 08 00:00:00 EDT 2009}
}