Biosynthesis of gold nanoparticles by actinomycete <i style="">Streptomyces viridogens</i> strain HM10
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Creator |
Balagurunathan, R
Radhakrishnan, M Rajendran, R Babu Velmurugan, D |
|
| Date |
2011-10-21T11:02:33Z
2011-10-21T11:02:33Z 2011-10 |
|
| Identifier |
0975-0959 (Online); 0301-1208 (Print)
http://hdl.handle.net/123456789/12941 |
|
| Description |
331-335
Biosynthesis of gold nanoparticles by <i style="">Streptomycetes</i> from Himalayan Mountain was undertaken for the first time. Out of 10 actinomycete strains tested, four strains (D10, HM10, ANS2 and MSU) showed evidence for the intracellular biosynthesis of gold nanoparticles, among which the strain HM10 showed high potency. Presence of spherical and rod shaped gold nanoparticles in mycelium of the strain HM10 was determined by transmission electron microscopy (TEM) and X-ray diffraction analysis. The average particle size ranged from 18-20 nm. UV spectral analysis indicated that the reduction of chloroauric acid (HAuCl<sub>4</sub>) occurred within 24 h of reaction period. Further, the strain HM10 showed enhanced growth at 1 and 10 mM concentration of HAuCl<sub>4</sub>. The gold nanoparticles synthesized by the strain HM10 showed good antibacterial activity against <i style="">S. aureus</i> and <i style="">E. coli</i> in well-diffusion method. The potential actinomycete HM10 strain was phenotypically characterized and identified as <i style="">Streptomyces viridogens</i> (HM10). Thus, actinomycete strain HM10 reported in this study is a newly added source for the biosynthesis of gold nanoparticles<i style="">.</i> |
|
| Language |
en_US
|
|
| Publisher |
NISCAIR-CSIR, India
|
|
| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
|
|
| Source |
IJBB Vol.48(5) [October 2011]
|
|
| Subject |
Actinomycetes
<i style="">Streptomycetes</i> Nanoparticles Gold Antibacterial activity |
|
| Title |
Biosynthesis of gold nanoparticles by actinomycete <i style="">Streptomyces viridogens</i> strain HM10
|
|
| Type |
Article
|
|