Antifungal effects of BiOBr nanosheets carrying surfactant cetyltrimethylammonium bromide

Meiqing Sun, Zhanlin Ding, Hong Wang, Guangping Yu, Bingzhi Li, Mingchun Li, Mengmeng Zhen

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PDF(442 KB)
Journal of Biomedical Research ›› 2018, Vol. 32 ›› Issue (5) : 380-388. DOI: 10.7555/JBR.32.20180043
Original Article
Original Article

Antifungal effects of BiOBr nanosheets carrying surfactant cetyltrimethylammonium bromide

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Abstract

BiOBr nanosheets are important photocatalytic nanomaterials. However, their biological effects remain to be explored. In this study, we investigated the antifungal effect of BiOBr nanosheets on Candida albicans. Strikingly, the nanosheets strongly inhibited the growth of C. albicans [IC50=(96±4.7) mg/L], hyphal development and biofilm formation. Compareed to the antifungal effect of the cationic surfactant cetyltrimethylammonium bromide, the inhibitory effect of the nanosheets on fungal pathogen was attributed to cetyltrimethylammonium bromide adsorbed by the nanosheets. Thermal gravity analysis and cetyltrimethylammonium bromide release experiment indicated that only 0.42% cetyltrimethylammonium bromide on BiOBr nanosheets was released. Taken together, this study uncovers the contribution of surfactant released from the nanosheets to their antifungal activity.

Keywords

BiOBr nanosheets / Candida albicans / antifungal activity / cationic surfactant

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Meiqing Sun, Zhanlin Ding, Hong Wang, Guangping Yu, Bingzhi Li, Mingchun Li, Mengmeng Zhen. Antifungal effects of BiOBr nanosheets carrying surfactant cetyltrimethylammonium bromide. Journal of Biomedical Research, 2018, 32(5): 380‒388 https://doi.org/10.7555/JBR.32.20180043

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Acknowledgments

This work is supported by Tianjin 131 Innovative Talent Training Project and Postdoctoral Science Foundation.

RIGHTS & PERMISSIONS

2018 2018 by the Journal of Biomedical Research.
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