Surface-grafted polymer brushes with controlled properties and nanoscale thickness are ideal candidates for transparent coatings to prevent biofouling.However,maintaining long-term antibacterial performance in natural...Surface-grafted polymer brushes with controlled properties and nanoscale thickness are ideal candidates for transparent coatings to prevent biofouling.However,maintaining long-term antibacterial performance in natural environments remains a significant challenge.In this study,we present a metalated polymer brush(Mt-PB)coating that combines excellent transparency with antimicrobial properties.The coating is prepared by incorporating transition metal ions(e.g.,Cu and Ag)into surface-grafted polymer brushes through cooperative in situ reduction.Due to the ultra-thinness of the metalated brush layer(Cu-PB,~60.07 nm;Ag-PB,~57.45 nm),the resulting coating exhibits high optical transmittance(~86%)and superior antibacterial efficiency(~99.99% inhibition rate against E.coli and S.aureus).Additionally,the Mt-PB-coated lens demonstrates excellent antibacterial and antifouling durability,as evidenced by underwater detection tests that provide high-resolution images and stable transparency(Δ<2%)for over a month of underwater exposure.These findings offer a promising strategy for developing transparent and antifouling coatings suitable for underwater optical devices.展开更多
基金supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB1210401)the National Science Fund for Distinguished Young Scholars of China(Grant No.52425501)+6 种基金the National Natural Science Fund for Excellent Young Scholars(Grant No.52322316)the Ningbo“3315 Innovation Programme”(Grant No.2019-17-C)the Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang(Grant No.2024R01004)the Opening Project of the Key Laboratory of Bionic Engineering(Ministry of Education),the Jilin University(Grant No.KF202508)the Public Welfare Science and Technology Projects of Ningbo(Grant No.2023S080)the“Pioneer”and“Leading Goose”R&D Program of Zhejiang(Grant No.2023C01089)the Distinguished Youth Foundation of Zhejiang Provincial Natural Science Foundation of China(Grant No.LRG25E030001)。
文摘Surface-grafted polymer brushes with controlled properties and nanoscale thickness are ideal candidates for transparent coatings to prevent biofouling.However,maintaining long-term antibacterial performance in natural environments remains a significant challenge.In this study,we present a metalated polymer brush(Mt-PB)coating that combines excellent transparency with antimicrobial properties.The coating is prepared by incorporating transition metal ions(e.g.,Cu and Ag)into surface-grafted polymer brushes through cooperative in situ reduction.Due to the ultra-thinness of the metalated brush layer(Cu-PB,~60.07 nm;Ag-PB,~57.45 nm),the resulting coating exhibits high optical transmittance(~86%)and superior antibacterial efficiency(~99.99% inhibition rate against E.coli and S.aureus).Additionally,the Mt-PB-coated lens demonstrates excellent antibacterial and antifouling durability,as evidenced by underwater detection tests that provide high-resolution images and stable transparency(Δ<2%)for over a month of underwater exposure.These findings offer a promising strategy for developing transparent and antifouling coatings suitable for underwater optical devices.
