【2021年影響因子/JCR分區：3.423/Q2】《MATERIALS LETTERS》Shape Memory Composite Film for Bacteria Killing and Biofilm Detaching
作者：Ziting Liu, Chen Chen, Rujian Jiang, Jie Zhao*, Luquan Ren
關鍵字：Biofilm detachment，Shape memory materials，Antimicrobial，Composite materials
論文來源：期刊
具體來源：https://doi.org/10.1016/j.matlet.2020.129186
發表時間：2021年
Biofilms that are responsible for a variety of chronic infections and antibiotic resistance have drawn much attention worldwide. A new strategy for mechanically disrupting and removing biofilms by thermal-triggered shape memory polyurethanes (SMPU) film composited with zinc oxide nanoparticles (ZnO NPs) is reported here. Upon thermal triggered shape recovery, most of the adhered biofilm can be detached from the surface of the SMPU, while the incorporated ZnO NPs could efficiently eliminate the adhered initially and residual bacteria after detaching activity, without leaching of bactericidal species. Furthermore, the composite films exhibited low cytotoxicity to mammalian cells as revealed by cell viability tests. We envision that this antibacterial strategy may find unique applications in biomedical devices, especially for those biofilm-associated infections.