Key Laboratory of Education, Ministry for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing 210094, China.
J Inorg Biochem. 2011 Sep;105(9):1181-6. doi: 10.1016/j.jinorgbio.2011.05.014. Epub 2011 May 27.
A widely soluble graphene oxide sheets decorated by silver nanoprisms were prepared through green synthesis at the room temperature using gelatin as reducing and stabilizing agent. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-visible spectroscopy and fluorescence spectra. The results demonstrate that these silver-nanoprisms assembled on graphene oxide sheets are flexible and can form stable suspensions in aqueous solutions. Furthermore, the formation mechanism of soluble graphene oxide sheets decorated by silver nanoprisms was successfully explained. The anti-bacterial properties of graphene oxide sheets decorated by silver nanoprisms were tested against Escherichia coli. This work provides a simple and "green" method for the synthesis of graphene oxide sheets decorated by silver nanoprisms in aqueous solution with promising antibacterial property.
通过在室温下使用明胶作为还原剂和稳定剂的绿色合成方法，制备了一种广泛可溶的氧化石墨烯片，其表面被银纳米棱柱体修饰。通过 X 射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、紫外-可见光谱和荧光光谱对样品进行了表征。结果表明，这些组装在氧化石墨烯片上的银纳米棱柱体具有柔韧性，可以在水溶液中形成稳定的悬浮液。此外，成功解释了可溶性氧化石墨烯片被银纳米棱柱体修饰的形成机制。对氧化石墨烯片被银纳米棱柱体修饰后的抗菌性能进行了大肠杆菌的抑菌测试。这项工作为在水溶液中合成具有良好抗菌性能的银纳米棱柱体修饰氧化石墨烯片提供了一种简单、“绿色”的方法。
