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ACS Applied Nano Materials

ACS Applied Nano Materials

IF: 5.3
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Surface-Induced Peptide Nanofibers for Selective Bacteria Trapping

Published:2 May 2023 DOI: 10.1021/acsanm.3c00912
Tingting Li, Ci Zhu, Chen Liang, Tingfen Deng, Xia Wu, Kang Wen, Xinxin Feng, Dan Yuan, Bing Xu* and Junfeng Shi*, 

Abstract

The abuse of antibiotics has led to the emergence of various drug-resistant bacterial strains that threaten human health. Other than a continuous screen for antibiotics, alternative strategies need to be adopted to inhibit bacterial invasion. Herein, we de novo designed a self-assembling peptide that contains a bacteria-binding domain, a linker, and a self-assembly motif. This peptide could specifically bind with a surface protein on Staphylococcus aureus, subsequently self-assemble to form nanofibers, and selectively engulf and trap the bacteria. Thus, these trapped bacteria lack the ability to invade host cells and are unable to form a biofilm. More importantly, the designed peptide is nontoxic to human cells. Such a “trap but not kill” strategy could serve as an alternative to conventional antibiotics and shows great potential for treating bacteria.

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