Additive Manufactured Graphene Coating with Synergistic Photothermal and Superhydrophobic Effects for Bactericidal Applications

被引:27
作者
Jiang, Nan [1 ]
Wang, Yilin [2 ]
Chan, Kong Cheung [2 ]
Chan, Ching-Yuen [2 ]
Sun, Hongzhe [1 ]
Li, Guijun [2 ,3 ]
机构
[1] Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China
[2] Hong Kong Polytech Univ, Adv Mfg Technol Res Ctr, Dept Ind & Syst Engn, Hong Kong, Peoples R China
[3] Hong Kong Polytech Univ, State Key Lab Ultraprecis Machining Technol, Dept Ind & Syst Engn, Hong Kong, Peoples R China
关键词
bacteriostasis; graphene; photothermal; robotics; superhydrophobic; HIGHLY EFFICIENT; ANTIBACTERIAL;
D O I
10.1002/gch2.201900054
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Drug-resistant bacterial infection is a global threat to public health due to the high mobility of the population. Novel therapy methods have been intensively studied for the eradication of antibiotic-resistant bacteria, including photothermal treatment, which has established outstanding bacterial killing efficiencies under laser radiation, and superhydrophobic surfaces have exhibited excellent antifouling properties. However, an effective, scalable, and affordable bactericidal coating for eliminating drug-resistant bacteria is lacking. Herein, a novel graphene coating using one-step laser-induced graphene and simultaneous laser-induced forward transfer is introduced. The graphene coating shows high photothermal conversion and superhydrophobic performance, and these synergistic effects can make the bacteria number decrease with over 99.99% proportions under one sun illumination. The superhydrophobic properties can also reduce 99.87% of bacteria compared to the control sample when the solar energy is not available. This additive and scalable method can quickly coat functional graphene onto various substrates, with bacterial applications in many areas, such as water pipeline robots.
引用
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页数:5
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