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Facet-Dependent Cu2O Electrocatalysis for Wearable Enzyme-Free Smart Sensing
ACS Catalysis ( IF 11.3 ) Pub Date : 2021-02-19 , DOI: 10.1021/acscatal.0c04797 Yu Jiang 1 , Tong Xia 1 , Liuxue Shen 1 , Junlin Ma 1 , Hongting Ma 1 , Tongrui Sun 1 , Fengjuan Lv 1 , Nan Zhu 1
ACS Catalysis ( IF 11.3 ) Pub Date : 2021-02-19 , DOI: 10.1021/acscatal.0c04797 Yu Jiang 1 , Tong Xia 1 , Liuxue Shen 1 , Junlin Ma 1 , Hongting Ma 1 , Tongrui Sun 1 , Fengjuan Lv 1 , Nan Zhu 1
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Exploiting electrocatalysis for wearable enzyme-free biosensors and biofuel cells has recently greatly developed in preliminary medical diagnosis and human healthcare fields. Herein, several facet-controlled cuprous oxide (Cu2O) nanostructures have been systematically fabricated to investigate the facet-dependent electrocatalysis mechanism. As a result, cuboctahedral Cu2O with a hollow structure exhibits optimal sensing performance for glucose detection compared with octahedral or extended hexapod Cu2O. The facet-dependent sensing process reveals that Cu2O{100} and Cu2O{111} facets are helpful in acquiring a higher interaction with enzyme-free substrates and accelerating electron transfer, respectively, to improve electrocatalytic activity. As a proof of concept, combined with a portable wireless device, wearable Cu2O enzyme-free biofuel cell systems can achieve glucose sensing by both open circuit potential and power output signals, which would potentially be used for a wearable enzyme-free energy platform. Therefore, this wearable enzyme-free smart sensing concept would help in the targeted establishment of biomarker electrocatalysts, and further offers considerable promise for the development of biofuel cells in the wearable healthcare monitoring field.
中文翻译：
面相关的Cu 2 O电催化可穿戴式无酶智能传感
在可穿戴式无酶生物传感器和生物燃料电池中开发电催化方法最近在初步医学诊断和人体保健领域得到了极大的发展。本文中，已经系统地制造了几种刻面受控的氧化亚铜（Cu 2 O）纳米结构，以研究刻面相关的电催化机理。结果，与八面体或扩展六足形Cu 2 O相比，具有空心结构的立方八面体Cu 2 O表现出最佳的葡萄糖检测传感性能。刻面相关的传感过程表明，Cu 2 O {100}和Cu 2O {111}面分别有助于与无酶底物形成更高的相互作用并加速电子转移，从而改善电催化活性。作为概念验证，与便携式无线设备结合使用的可穿戴式无Cu 2 O无酶生物燃料电池系统可以通过开路电势和功率输出信号来实现葡萄糖感测，这有可能用于可穿戴式无酶能源平台。因此，这种可穿戴的无酶智能传感概念将有助于有针对性地建立生物标志物电催化剂，并进一步为可穿戴医疗监测领域中生物燃料电池的发展提供可观的前景。
更新日期：2021-03-05
中文翻译：
面相关的Cu 2 O电催化可穿戴式无酶智能传感
在可穿戴式无酶生物传感器和生物燃料电池中开发电催化方法最近在初步医学诊断和人体保健领域得到了极大的发展。本文中，已经系统地制造了几种刻面受控的氧化亚铜（Cu 2 O）纳米结构，以研究刻面相关的电催化机理。结果，与八面体或扩展六足形Cu 2 O相比，具有空心结构的立方八面体Cu 2 O表现出最佳的葡萄糖检测传感性能。刻面相关的传感过程表明，Cu 2 O {100}和Cu 2O {111}面分别有助于与无酶底物形成更高的相互作用并加速电子转移，从而改善电催化活性。作为概念验证，与便携式无线设备结合使用的可穿戴式无Cu 2 O无酶生物燃料电池系统可以通过开路电势和功率输出信号来实现葡萄糖感测，这有可能用于可穿戴式无酶能源平台。因此，这种可穿戴的无酶智能传感概念将有助于有针对性地建立生物标志物电催化剂，并进一步为可穿戴医疗监测领域中生物燃料电池的发展提供可观的前景。
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