Potential enhancement of antibacterial activity of graphene oxide-silver nanocomposite by introducing C2 carbon chain linkage

Potential enhancement of antibacterial activity of graphene oxide-silver nanocomposite by... Article history: Various carbon chain linkages were introduced during the process of synthesizing silver-nanoparticles Received 28 May 2015 (AgNPs)-decorated graphene nanocomposites [referred to as GO-C -Ag where, HS-(CH ) -SH = C and x 2 x x Received in revised form 21 October 2015 x = 0, 2, or 4] to evaluate antibacterial properties. The nano-structures of GO-C -Ag were characterized Accepted 8 November 2015 using TEM and XPS, revealing that GO-C -Ag comprises well-dispersed and smaller AgNPs anchored onto Available online 14 November 2015 the surface of graphene sheets than the GO-C -Ag and GO-C -Ag. The antibacterial activities of those 0 4 nanocomposites were assessed using paper-disk diffusion and minimal inhibitory concentration (MIC) Keywords: methods against Gram-negative and Gram-positive bacteria. The results showed that carbon chain link- Antibacterial materials ers enhanced the antibacterial activity against Gram-negative Salmonella typhimurium and Pseudomonas Carbon nanostructures aeruginosa and Gram-positive Staphylococcus aureus. In particular, GO-C -Ag showed higher antibacterial Grafted graphene activity than GO-C -Ag and GO-C -Ag due to nearly eight times higher reactive oxygen species (ROS) for- Silver nanoparticles 0 4 mation which determined by fluorescence-based ROS detection experiment. Also, LC-inductively coupled plasma mass spectrometer (LC-ICP-MS) demonstrated that the Ag http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Potential enhancement of antibacterial activity of graphene oxide-silver nanocomposite by introducing C2 carbon chain linkage

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2015.11.084
Publisher site
See Article on Publisher Site

Abstract

Article history: Various carbon chain linkages were introduced during the process of synthesizing silver-nanoparticles Received 28 May 2015 (AgNPs)-decorated graphene nanocomposites [referred to as GO-C -Ag where, HS-(CH ) -SH = C and x 2 x x Received in revised form 21 October 2015 x = 0, 2, or 4] to evaluate antibacterial properties. The nano-structures of GO-C -Ag were characterized Accepted 8 November 2015 using TEM and XPS, revealing that GO-C -Ag comprises well-dispersed and smaller AgNPs anchored onto Available online 14 November 2015 the surface of graphene sheets than the GO-C -Ag and GO-C -Ag. The antibacterial activities of those 0 4 nanocomposites were assessed using paper-disk diffusion and minimal inhibitory concentration (MIC) Keywords: methods against Gram-negative and Gram-positive bacteria. The results showed that carbon chain link- Antibacterial materials ers enhanced the antibacterial activity against Gram-negative Salmonella typhimurium and Pseudomonas Carbon nanostructures aeruginosa and Gram-positive Staphylococcus aureus. In particular, GO-C -Ag showed higher antibacterial Grafted graphene activity than GO-C -Ag and GO-C -Ag due to nearly eight times higher reactive oxygen species (ROS) for- Silver nanoparticles 0 4 mation which determined by fluorescence-based ROS detection experiment. Also, LC-inductively coupled plasma mass spectrometer (LC-ICP-MS) demonstrated that the Ag

Journal

Applied Surface ScienceElsevier

Published: Jan 1, 2016

References

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