The antifungal effect of silver nanoparticles on Trichosporon asahii

被引：131
作者：
Xia, Zhi-Kuan [1 ,2 ]
Ma, Qiu-Hua [1 ]
Li, Shu-Yi [1 ]
Zhang, De-Quan [1 ]
Cong, Lin [1 ]
Tian, Yan-Li [1 ]
Yang, Rong-Ya [1 ]
机构：
[1] Gen Hosp Beijing Mil Command PLA, Dept Dermatol, 5 Nanmencang, Beijing 100700, Peoples R China
[2] Third Mil Med Univ, Chongqing, Peoples R China
来源：
JOURNAL OF MICROBIOLOGY IMMUNOLOGY AND INFECTION | 2016年 / 49卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Antifungal activity; Electron microscopy; Minimum inhibitory; concentration; Silver nanoparticles; Trichosporon asahii; IN-VITRO; INFECTION; PATIENT; CYTOTOXICITY; GENERATION; MODE;
D O I：
10.1016/j.jmii.2014.04.013
中图分类号：
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号：
100102 ;
摘要：
Background/Purpose: Silver nanoparticles are receiving increasing attention in biomedical applications. This study aims at evaluating the antifungal properties of silver nanoparticles against the pathogenic fungus Trichosporon asahii. Methods: The growth of T. asahii on potato dextrose agar medium containing different concentrations of silver nanoparticles was examined and the antifungal effect was evaluated using minimum inhibitory concentration. Scanning and transmission electron microscopy were also used to investigate the antifungal effect of silver nanoparticles on T. asahii. Results: Silver nanoparticles had a significant inhibitory effect on the growth of T. asahii. The minimum inhibitory concentration of silver nanoparticles against T. asahii was 0.5 ug/mL, which was lower than amphotericin B, 5-flucytosine, caspofungin, terbinafine, fluconazole, and itraconazole and higher than voriconazole. Silver nanoparticles obviously damaged the cell wall, cell membrane, mitochondria, chromatin, and ribosome. Conclusion: Our results demonstrate that silver nanoparticles have good antifungal activity against T. asahii. Based on our electron microscopy observations, silver nanoparticles may inhibit the growth of T. asahii by permeating the fungal cell and damaging the cell wall and cellular components. Copyright (C) 2014, Taiwan Society of Microbiology. Published by Elsevier Taiwan LLC. All rights reserved.
引用
收藏
页码：182 / 188
页数：7
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