Institute of Industrial Biotechnology, GC University Lahore, Lahore 54000, Pakistan.
J Nanosci Nanotechnol. 2019 Nov 1;19(11):7442-7446. doi: 10.1166/jnn.2019.16723.
Graphene due to its unique properties of biocompatibility has received considerable attention for biosensing applications. Here, we report the effect of glucose oxidase treatment on the graphene devices. Raman spectroscopy and the electrical transport measurements are performed to study the graphene intrinsic characteristics before glucose oxidase treatment. The absence of the defect peak in the Raman spectrum shows high-quality graphene. The modulation in the electrical properties is further investigated by different period of glucose oxidase treatment. Our results illustrate that the mobility of the graphene-based field effect transistor is gradually enhanced with the glucose oxidase treatment time. The enhancement in the electrical performance of graphene FET with the biomolecules could be the suitable route for the bioelectronic devices.
由于其独特的生物相容性，石墨烯在生物传感应用中受到了相当多的关注。在这里，我们报告了葡萄糖氧化酶处理对石墨烯器件的影响。拉曼光谱和输运测量被用来研究葡萄糖氧化酶处理前石墨烯的本征特性。拉曼光谱中没有缺陷峰表明石墨烯质量很高。通过不同的葡萄糖氧化酶处理周期进一步研究了其对电性能的调制。我们的结果表明，基于石墨烯的场效应晶体管的迁移率随着葡萄糖氧化酶处理时间的增加而逐渐增强。石墨烯 FET 的电性能的增强与生物分子的协同作用可能是生物电子器件的合适途径。
