Wang Zitong, Cheng Huajing, Chen Rong, Wang Ming-Xi, Jiang Nan, Lu Zhong, Yang Hao
Key Laboratory for Green Chemical Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China; State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, PR China.
Key Laboratory for Green Chemical Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China.
Int J Biol Macromol. 2025 Feb;290:138901. doi: 10.1016/j.ijbiomac.2024.138901. Epub 2024 Dec 18.
Due to the outbreak of global public health emergency, antibacterial fabrics such as face masks are in great demand. However, common antibacterial fabrics cannot kill bacteria in minutes and they are easy to be contaminated and lost biological activity. In this work, omnipotent antibacterial cotton fabrics with superhydrophobic and photothermal properties are developed by the combination of dopamine with copper sulfide (CuS) and silver nanoparticles on cotton fabrics, and post-modification with PDMS. The prepared PDA/CuS/Ag/PDMS composite fabrics were characterized by FE-SEM, XRD, EDS, ATR-FTIR and water contact angle. The photothermal antimicrobial properties of the fabrics were evaluated with Staphylococcus aureus (S. aureus) and Escherichia coli (E. coil) under near-infrared light (NIR) illumination or not. The results showed that the obtained superhydrophobic PDA/CuS/Ag/PDMS composite fabrics had excellent water repellence and self-cleaning effect. Regardless of NIR irradiation or not, PDA/CuS/Ag/PDMS composite fabrics possessed high antibacterial activity against S. aureus and E. coil, which proves their omnipotent antibacterial property.
由于全球突发公共卫生事件，口罩等抗菌织物需求量极大。然而，普通抗菌织物无法在数分钟内杀灭细菌，且易被污染并丧失生物活性。在本研究中，通过将多巴胺与硫化铜（CuS）及银纳米颗粒结合于棉织物上，并采用聚二甲基硅氧烷（PDMS）进行后改性，制备出具有超疏水和光热性能的全能抗菌棉织物。利用场发射扫描电子显微镜（FE-SEM）、X射线衍射仪（XRD）、能谱仪（EDS）、衰减全反射傅里叶变换红外光谱仪（ATR-FTIR）和水接触角对所制备的聚多巴胺/硫化铜/银/聚二甲基硅氧烷（PDA/CuS/Ag/PDMS）复合织物进行表征。在有无近红外光（NIR）照射的条件下，以金黄色葡萄球菌（S. aureus）和大肠杆菌（E. coil）评估织物的光热抗菌性能。结果表明，所制备的超疏水PDA/CuS/Ag/PDMS复合织物具有优异的拒水性能和自清洁效果。无论有无近红外光照射，PDA/CuS/Ag/PDMS复合织物对金黄色葡萄球菌和大肠杆菌均具有高抗菌活性，这证明了其全能抗菌性能。
