title: Full Spectrum Visible LED Light Activated Antibacterial System Realized by Optimized Cu2O Crystals.
abstract: Assisted by three-dimensional printing technology, we proposed and demonstrated a full spectrum visible light activated antibacterial system by using a combination of 500 nm sized Cu2O crystals and light-emitting diode (LED) lamps. Further improved antibacterial ratios were achieved, for the first time, with pure Cu2O for both Gram-positive bacteria and Gram-negative bacteria among all of the six different color LED lamps. For practical antibacterial applications, we revealed that the nonwoven fabric could act as excellent carrier for Cu2O crystals and provide impressive antibacterial performance. Furthermore, integrated with our self-developed app, the poly(ethylene terephthalate) film loaded with Cu2O crystals also showed significant antibacterial property, thus making it possible to be applied in field of touch screen. The present research not only provided a healthier alternative to traditional ultraviolet-based sterilization but also opened an auto-response manner to decrease the rate of microbial contamination on billions of touch screen devices.
authors.affiliation: Institute of Translational Medicine, NanChang University , NanChang, Jiangxi 330031, China.
authors.forename: Xiaotong
authors.initials: X
authors.lastname: Shi
authors.affiliation: Institute of Translational Medicine, NanChang University , NanChang, Jiangxi 330031, China.
authors.forename: Chaowen
authors.initials: C
authors.lastname: Xue
authors.affiliation: National Engineering Technology Research Center for LED on Si Substrate, NanChang University , NanChang, Jiangxi 330047, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Fang
authors.affiliation: Institute of Translational Medicine, NanChang University , NanChang, Jiangxi 330031, China.
authors.forename: Xiangwei
authors.initials: X
authors.lastname: Song
authors.affiliation: College of Chemistry, NanChang University , NanChang, Jiangxi 330031, China.
authors.forename: Fen
authors.initials: F
authors.lastname: Yu
authors.affiliation: College of Chemistry, NanChang University , NanChang, Jiangxi 330031, China.
authors.forename: Miaoxing
authors.initials: M
authors.lastname: Liu
authors.affiliation: State Key Laboratory of High Power Semiconductor Laser of ChangChun University of Science and Technology , ChangChun, Jinlin 130022, China.
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Wei
authors.affiliation: State Key Laboratory of High Power Semiconductor Laser of ChangChun University of Science and Technology , ChangChun, Jinlin 130022, China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Fang
authors.affiliation: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , ChangChun, Jilin 130033, China.
authors.forename: Dongxu
authors.initials: D
authors.lastname: Zhao
authors.affiliation: Institute of Translational Medicine, NanChang University , NanChang, Jiangxi 330031, China.
authors.forename: Hongbo
authors.initials: H
authors.lastname: Xin
authors.affiliation: Institute of Translational Medicine, NanChang University , NanChang, Jiangxi 330031, China.|College of Chemistry, NanChang University , NanChang, Jiangxi 330031, China.
authors.forename: Xiaolei
authors.initials: X
authors.lastname: Wang
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology* / Q000528:radiation effects; D003201:Computers; D003300:Copper / Q000737:chemistry* / Q000494:pharmacology / Q000528:radiation effects; D006090:Gram-Negative Bacteria / Q000187:drug effects*; D006094:Gram-Positive Bacteria / Q000187:drug effects*; D006801:Humans; D008027:Light; D066330:Printing, Three-Dimensional; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents; D003300:Copper; C030973:cupric oxide
keywords: 3D printing; LED; antibacterial; cuprous oxide; full-wave