作者
Decai Zhao, Nailiang Yang, Yan Wei, Quan Jin, Yanlei Wang, Hongyan He, Yang Yang, Bing Han, Suojiang Zhang, Dan Wang
发表日期
2020/9/7
期刊
Nature communications
卷号
11
期号
1
页码范围
4450
出版商
Nature Publishing Group UK
简介
Hollow multishelled structures (HoMSs), with relatively isolated cavities and hierarchal pores in the shells, are structurally similar to cells. Functionally inspired by the different transmission forms in living cells, we studied the mass transport process in HoMSs in detail. In the present work, after introducing the antibacterial agent methylisothiazolinone (MIT) as model molecules into HoMSs, we discover three sequential release stages, i.e., burst release, sustained release and stimulus-responsive release, in one system. The triple-shelled structure can provide a long sterility period in a bacteria-rich environment that is nearly 8 times longer than that of the pure antimicrobial agent under the same conditions. More importantly, the HoMS system provides a smart responsive release mechanism that can be triggered by environmental changes. All these advantages could be attributed to chemical diffusion- and physical …
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