title: Fabrication of CeO2 nanoparticle-modified silk for UV protection and antibacterial applications.
abstract: To endow silk with UV-shielding ability and antibacterial activity, CeO2 nanoparticles were immobilized on silk surface via a dip-coating approach without changing silk structure. Surface density of the nanoparticles could be easily adjusted by controlling the number of dip-coating cycle. Enhanced thermal stability of the modified silk is exhibited in thermogravimetric analysis (TGA) and derivative thermogravimetric analysis (DTG). The excellent UV-protection ability and antibacterial property of the CeO2 nanoparticle-coated silk are demonstrated in UV-vis diffuse reflectance spectroscopy and colony-forming capability test, respectively. Based on the data, it can be concluded that CeO2 nanoparticles could be used as a very promising coating material to modify silk for UV-protection and antibacterial applications.
authors.affiliation: Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China; Chongqing Engineering Research Center for Rapid Diagnosis of Fatal Diseases, Chongqing 400715, China. Electronic address: zslu@swu.edu.cn.
authors.forename: Zhisong
authors.initials: Z
authors.lastname: Lu
authors.affiliation: Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China; Chongqing Engineering Research Center for Rapid Diagnosis of Fatal Diseases, Chongqing 400715, China. Electronic address: maocuiping1108@gmail.com.
authors.forename: Cuiping
authors.initials: C
authors.lastname: Mao
authors.affiliation: Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China; Chongqing Engineering Research Center for Rapid Diagnosis of Fatal Diseases, Chongqing 400715, China. Electronic address: mengmuyao@163.com.
authors.forename: Mei
authors.initials: M
authors.lastname: Meng
authors.affiliation: Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China; Chongqing Engineering Research Center for Rapid Diagnosis of Fatal Diseases, Chongqing 400715, China. Electronic address: 702180754@qq.com.
authors.forename: Sangui
authors.initials: S
authors.lastname: Liu
authors.affiliation: Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China; Chongqing Engineering Research Center for Rapid Diagnosis of Fatal Diseases, Chongqing 400715, China. Electronic address: 853862739@qq.com.
authors.forename: Yunli
authors.initials: Y
authors.lastname: Tian
authors.affiliation: Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China; Chongqing Engineering Research Center for Rapid Diagnosis of Fatal Diseases, Chongqing 400715, China. Electronic address: lingyu12@swu.edu.cn.
authors.forename: Ling
authors.initials: L
authors.lastname: Yu
authors.affiliation: Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China; Chongqing Engineering Research Center for Rapid Diagnosis of Fatal Diseases, Chongqing 400715, China. Electronic address: sunbai2010@163.com.
authors.forename: Bai
authors.initials: B
authors.lastname: Sun
authors.affiliation: Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Chongqing 400715, China; Chongqing Engineering Research Center for Rapid Diagnosis of Fatal Diseases, Chongqing 400715, China. Electronic address: ecmli@swu.edu.cn.
authors.forename: Chang Ming
authors.initials: CM
authors.lastname: Li
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D002563:Cerium / Q000737:chemistry*; D003124:Colorimetry; D008855:Microscopy, Electron, Scanning; D053758:Nanoparticles / Q000737:chemistry*; D047011:Silk / Q000737:chemistry*; D013499:Surface Properties; D014466:Ultraviolet Rays
chemical_list: D000900:Anti-Bacterial Agents; D047011:Silk; D002563:Cerium; C030583:ceric oxide
keywords: Antibacterial activity; Cerium oxide nanoparticle; Silk; UV protection