AUTHOR=Lin Jiayi , Xu Linlin , Zheng Yuling , Wu Dalin , Yue Jun TITLE=Imitation-mussel fluorescent silicon quantum dots for selective labeling and imaging of bacteria and biofilms JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=10 YEAR=2022 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2022.971682 DOI=10.3389/fbioe.2022.971682 ISSN=2296-4185 ABSTRACT=
Selective labeling of distinct bacteria and biofilm is poised for the fundamental understanding of bacterial activities, interactions, and coupled phenomena occurring at the microscale. However, a simple and effective way to achieve selective bacterial labeling is still lacking. Herein, we report a fluorescence probe with core-shell nanostructure that has polydopamine (PDA) coating on the surface of fluorescent silicon quantum dots (SiQDs@PDA). The surface of the SiQDs@PDA can be functionalized by various molecules (2-mercaptoethylamine hydrochloride, PEG,