Document Detail

Synthesis of silver nanoparticles in an aqueous suspension of graphene oxide sheets and its antimicrobial activity.
MedLine Citation:
PMID:  21109409     Owner:  NLM     Status:  MEDLINE    
A solution-based approach to the synthesis of silver (Ag) nanoparticles by chemical reduction of AgNO(3) in a graphene oxide (GrO) suspension is demonstrated. X-ray diffraction and transmission electron microscopy indicate that the Ag nanoparticles, of size range 5-25nm, were decorated on the GrO sheets. The size and shape of the Ag nanoparticles are dependent on the concentration of the AgNO(3) solution. Antimicrobial activity of such hybrids materials is investigated against the Gram negative bacteria Escherichia coli and Pseudomonous aeruginosa. The bacterial growth kinetics was monitored in nutrient broth supplemented with the Ag nanoparticle-GrO suspension at different conditions. It was observed that P. aeruginosa is comparatively more sensitive to the Ag nanoparticle-GrO suspension.
Manash R Das; Rupak K Sarma; Ratul Saikia; Vinayak S Kale; Manjusha V Shelke; Pinaki Sengupta
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Publication Detail:
Type:  Journal Article     Date:  2010-10-30
Journal Detail:
Title:  Colloids and surfaces. B, Biointerfaces     Volume:  83     ISSN:  1873-4367     ISO Abbreviation:  Colloids Surf B Biointerfaces     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2010-12-20     Completed Date:  2011-03-28     Revised Date:  2011-09-27    
Medline Journal Info:
Nlm Unique ID:  9315133     Medline TA:  Colloids Surf B Biointerfaces     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  16-22     Citation Subset:  IM    
Copyright Information:
2010 Elsevier B.V. All rights reserved.
Materials Science Division, North East Institute of Science & Technology, CSIR, Jorhat 785006, Assam, India.
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MeSH Terms
Anti-Infective Agents / chemical synthesis*,  pharmacology*
Escherichia coli / drug effects,  growth & development
Graphite / chemistry*
Metal Nanoparticles / chemistry*,  ultrastructure
Microbial Sensitivity Tests
Oxides / chemistry*
Particle Size
Pseudomonas aeruginosa / drug effects,  growth & development
Silver / chemistry*,  pharmacology*
Spectrophotometry, Ultraviolet
X-Ray Diffraction
Reg. No./Substance:
0/Anti-Infective Agents; 0/Oxides; 0/Suspensions; 7440-22-4/Silver; 7782-42-5/Graphite

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