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    Many substances in nature show radiated topological structure and possess excellent bio-adhesion ability. Herein, regulating the topological structure of Zn2 GeO4 :Mn persistent phosphors is achieved with a molecular coordination method. The morphology of the Zn2 GeO4 :Mn phosphors is well-tuned from nanorods to radiated dendrites by changing the coordination capability of the surface ligand. Due to the structural matching and multivalent interactions, Zn2 GeO4 :Mn radiated dendrites show strong adhesion affinity toward organisms. Moreover, the porous radiated structure offers Zn2 GeO4 :Mn with a large surface area for photocatalysis. Efficient bacterial adhesion and good long persistent photocatalysis activity are observed in the Zn2 GeO4 :Mn radiated dendrites, which endows Zn2 GeO4 :Mn with persistent antibacterial activity even in the dark. Further, the Zn2 GeO4 :Mn spike flowers loaded fabrics exhibit potent persistent antibacterial properties. Mask and towel fabricated with the antibacterial fabrics can inhibit bacterial growth effectively and no bacteria are observed to pass through the antibacterial mask, suggesting that antibacterial mask can guarantee our health and can be utilized repeatedly. The developed Zn2 GeO4 :Mn dendrites possess ideal ability in long-term bacterial inhibition, making them valuable in the fields of medical protection and food packaging. © 2021 Wiley-VCH GmbH.


    Zhiheng Li, Jie Wang, Ruichen Shen, Na Chen, Xinyuan Qin, Wenjie Wang, Quan Yuan. Topological Radiated Dendrites Featuring Persistent Bactericidal Activity for Daily Personal Protection. Small (Weinheim an der Bergstrasse, Germany). 2021 May 09:e2100562

    PMID: 33969623

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