Full Spectrum Visible LED Light Activated Antibacterial System Realized by Optimized Cu2O Crystals
| Autor: | Fen Yu, Xiaolei Wang, Chaowen Xue, Xiangwei Song, Xuan Fang, Dongxu Zhao, Fang Fang, Xiaotong Shi, Zhipeng Wei, Miaoxing Liu, Hongbo Xin |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Nonwoven fabric Light Nanotechnology 02 engineering and technology Microbial contamination 010402 general chemistry medicine.disease_cause Gram-Positive Bacteria 01 natural sciences law.invention X-Ray Diffraction law Gram-Negative Bacteria medicine Humans General Materials Science Diode Antibacterial property business.industry Computers Light activated 021001 nanoscience & nanotechnology 0104 chemical sciences Anti-Bacterial Agents LED lamp Printing Three-Dimensional Optoelectronics 0210 nano-technology business Ultraviolet Copper Visible spectrum |
| Zdroj: | ACS applied materialsinterfaces. 8(13) |
| ISSN: | 1944-8252 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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