枯草芽孢杆菌
细菌
抗真菌
微生物学
免疫系统
生物
人类健康
渗透(战争)
免疫学
医学
运筹学
遗传学
环境卫生
工程类
作者
Fengyuan Wang,Xiaoxuan Zhang,Guopu Chen,Yuanjin Zhao
出处
期刊:Research
[AAAS00]
日期:2020-01-01
卷期号:2020
被引量:37
标识
DOI:10.34133/2020/2760594
摘要
Fungal infections are everlasting health challenges all over the world, bringing about great financial and medical burdens. Here, inspired by the natural competition law of beneficial bacteria against other microbes, we present novel living microneedles (LMNs) with functionalized bacteria encapsulation for efficient fungal infection treatment. The chosen beneficial bacterial components, Bacillus subtilis (B. subtilis), which are naturally found on the human skin and widely used for food processing, can get nutrients from the skin and escape from the immune system with the help of microneedles. Besides, the encapsulated B. subtilis can continuously produce and secrete various potential antifungal agents which can directly bind to fungal cell surface-associated proteins and destruct the cell membranes, thus avoiding drug resistance. After immobilization in the LMNs, the bacteria can stay within the LMNs without invasion and the encapsulated bacteria together with microneedles can be removed after application. Thus, the side effects, especially the risk for subsequent bacterial infections, are controlled to a minimum to ensure security. In addition, strong penetrability of the microneedles enhances penetration of antifungal agents, and their heights can be adjusted according to the infected depth to acquire better therapeutic effects. These features make the LMNs potentially valuable for clinical applications.
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