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Green fabrication of Cu/rGO decorated SWCNT buckypaper as a flexible electrode for glucose detection
Biomaterials Advances ( IF 7.9 ) Pub Date : 2020-11-27 , DOI: 10.1016/j.msec.2020.111757
Tianxiang Zhu , Xiaoer Wang , Weiwei Chang , Yifan Zhang , Takahiro Maruyama , Liqiang Luo , Xinluo Zhao

As a paper-like membrane composed of single-walled carbon nanotube (SWCNT), buckypaper possesses high conductivity, ideal flexibility, large surface area, great thermal/chemical stability and biocompatibility, which has manifested its potential as an alternative support material. However, due to the lack of defects, high quality SWCNT synthesized by arc-discharge method is difficult to be modified with metal nanoparticles for electro-catalysis. In this paper, a novel green strategy has been developed to fabricate SWCNT buckypaper decorated with Cu/reduced graphene oxide (Cu/rGO-BP) for the first time, in which graphene oxide functions as the intermediate between SWCNT and Cu nanoparticles. The fabricated Cu/rGO-BP was applied as a flexible electrode for electrochemical glucose detection. The electrode exhibited excellent electro-catalytic activity for glucose oxidation. The sensor based on Cu/rGO-BP performed a high upper limit of linear range (25 mM), which is close to commercial glucose sensors. The proposed strategy for Cu/rGO-BP fabrication can be extended to modify buckypaper with other metal or metal oxide nanoparticles, and thus opens an innovative route to potential practical applications of flexible buckypaper in wearable bioelectronics.



中文翻译:

绿色制造cu / rGO装饰的SWCNT Buckypaper作为用于葡萄糖检测的柔性电极

作为由单壁碳纳米管(SWCNT)组成的纸状膜,布基纸具有高导电性,理想的柔韧性,较大的表面积,良好的热/化学稳定性和生物相容性,已显示出其作为替代载体材料的潜力。然而,由于缺乏缺陷,通过电弧放电法合成的高质量SWCNT难以用金属纳米粒子改性以用于电催化。本文首次提出了一种新颖的绿色策略,以制备装饰有Cu /还原氧化石墨烯(Cu / rGO-BP)的SWCNT巴克纸,其中氧化石墨烯充当SWCNT和Cu纳米粒子之间的中间物。所制备的Cu / rGO-BP被用作用于电化学葡萄糖检测的柔性电极。该电极对葡萄糖氧化表现出优异的电催化活性。基于Cu / rGO-BP的传感器具有很高的线性范围上限(25 mM),接近商用葡萄糖传感器。可以扩展提出的Cu / rGO-BP制造策略,以用其他金属或金属氧化物纳米粒子改性巴基纸,从而为柔性巴基纸在可穿戴生物电子学中的潜在实际应用开辟了一条创新途径。

更新日期:2020-12-01
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