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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/52936

Title: Self-Assembly of Antimicrobial Peptides on Gold Nanodots: Against Multidrug-Resistant Bacteria and Wound Healing Application.
Authors: Yi‐Cheng Huang
Wei‐Yu Chen
Hsiang‐Yu Chang
Jenn‐Kan Lu
Scott G. Harroun
Yu‐Ting Tseng
Yu‐Jia Li
Chih‐Ching Huang
Huan‐Tsung Chang
Contributors: 國立臺灣海洋大學:食品科學系
Keywords: antimicrobial agents
gold nanodots
self‐assembly
surfactin
wound healing
Date: 2015-10
Issue Date: 2020-02-10T08:35:21Z
Publisher: Advanced Functional Materials
Abstract: Abstract: Photoluminescent gold nanodots (Au NDs) are prepared via etching and codeposition of hybridized ligands, an antimicrobial peptide (surfactin; SFT), and 1‐dodecanethiol (DT), on gold nanoparticles (≈3.2 nm). As‐prepared ultrasmall SFT/DT–Au NDs (size ≈2.5 nm) are a highly efficient antimicrobial agent. The photoluminescence properties and stability as well as the antimicrobial activity of SFT/DT–Au NDs are highly dependent on the density of SFT on Au NDs. Relative to SFT, SFT/DT–Au NDs exhibit greater antimicrobial activity, not only to nonmultidrug‐resistant bacteria but also to the multidrug‐resistant bacteria. The minimal inhibitory concentration values of SFT/DT–Au NDs are much lower (>80‐fold) than that of SFT. The antimicrobial activity of SFT/DT–Au NDs is mainly due to the synergistic effect of SFT and DT–Au NDs on the disruption of the bacterial membrane. In vitro cytotoxicity and hemolysis analyses have revealed superior biocompatibility of SFT/DT–Au NDs than that of SFT. Moreover, in vivo methicillin‐resistant S. aureus–infected wound healing studies in rats show faster healing, better epithelialization, and are more efficient in the production of collagen fibers when SFT/DT–Au NDs are used as a dressing material. This study suggests that the SFT/DT–Au NDs are a promising antimicrobial candidate for preclinical applications in treating wounds and skin infections.
Relation: 25(46) pp 7189-7199
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/52936
Appears in Collections:[食品科學系] 期刊論文

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