硫掺杂激光诱导石墨烯的制备及抗菌性能  

Preparation and Antibacterial Properties of Sulfur-Doped Laser-Induced Graphene

作　　者：杨勇 周可心 胡南滔 张亚非 Yang Yong;Zhou Kexin;Hu Nantao;Zhang Yafei(Key Laboratory of Thin Film and Microtechnology of Ministry of Education,School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院薄膜与微细技术教育部重点实验室,上海200240

出　　处：《微纳电子技术》2021年第4期303-308,331,共7页Micronanoelectronic Technology

基　　金：上海市自然科学基金资助项目(17ZR1414100)。

摘　　要：高效抗菌性能的石墨烯基材料的制备具有挑战性。两步激光诱导法被成功用于硫掺杂激光诱导石墨烯(SLIG)的合成,该方法简单可控,并且制备的石墨烯纯度较高。研究了SLIG在胶体溶液中的抗菌性能。通过光密度(OD)法和平板菌落计数法测试了SLIG对大肠杆菌和金黄色葡萄球菌的活性抑制。结果表明,与激光诱导的石墨烯(LIG)相比,SLIG对革兰氏阴性大肠杆菌和革兰氏阳性金黄色葡萄球菌均表现出更高的抗菌能力。除此之外,分子动力学计算的结果与实验结果一致,表明掺杂的硫原子和石墨烯的高效协同作用增强了SLIG的抗菌性能。因此,两步激光诱导法制备的SLIG是一种有效的抗菌材料。It is challenging to prepare graphene-based materials with efficient antibacterial properties.The two-step laser induction method was successfully used for the synthesis of sulfur-doped laser-induced graphene(SLIG).The method is simple and controllable,and the prepared graphene has higher purity.The antibacterial properties of the SLIG in colloidal solution were studied.The activity inhibitions of the SLIG on Escherichia coli(E.coli)and Staphylococcus aureus(S.aureus)were tested by optical density(OD)method and plate colony counting method.The results show that compared with the laser-induced graphene(LIG),the SLIG shows higher antibacterial ability against Gram-negative E.coli and Gram-positive S.aureus.In addition,the calculation results of molecular dynamics are consistent with experimental results,indicating that the efficient synergy of doped sulfur atoms and graphene enhances the antibacterial properties of the SLIG.Therefore,the SLIG prepared by the two-step laser induction method is an effective antibacterial material.

关 键 词：激光诱导法 硫掺杂的石墨烯 抗菌性能 纳米材料 分子动力学模拟 

分 类 号：TB34[一般工业技术—材料科学与工程]