Enokitake Mushroom-like Standing Gold Nanowires toward Wearable Noninvasive Bimodal Glucose and Strain Sensing

ACS Applied Materials & Interfaces
Qingfeng ZhaiWenlong Cheng

Abstract

We have recently demonstrated that Enokitake mushroom-like gold with nanoparticles as the "head" and nanowires as the "tail" could grow directly on elastomeric substrates, which are extremely stretchable electrodes that can be used as wearable sensors for detecting strain and pressure. In this work, we show that such electrodes can also be used as intrinsically stretchable glucose biosensors. By modifying the vertical gold nanowire electrodes with glucose oxidase and Prussian blue nanoparticles, a limit of detection of 10 μM, sensitivity of 23.72 μA·mM-1·cm-2, and high selectivity can be achieved. The as-obtained glucose biosensors were able to maintain a high sensing performance under various mechanical deformations. Even for 30% strain, a sensitivity of 4.55 μA·mM-1·cm-2 toward glucose detection in the artificial sweat was possible. Furthermore, it was found that strains could be simultaneously detected with a gauge factor of 2.30 (strain 0-10%) and 22.64 (strain 10-20%), demonstrating the potential of such bimodal sensors to allow simultaneous monitoring of physical and biological signals.

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Citations

Nov 14, 2019·Advanced Materials·Yunzhi LingWenlong Cheng
Jan 31, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Ren WangWenlong Cheng
Feb 6, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Guanglei Li, Dan Wen
Aug 31, 2019·Advanced Materials·Shu GongWenlong Cheng
May 7, 2020·Frontiers in Chemistry·Zhengdi WangMin Wei
Jan 17, 2020·Advanced Materials·Ting WangXiaodong Chen
Dec 10, 2020·Sensors·Liu TangJen-Tsai Liu
Nov 28, 2020·Analytical Chemistry·Joshua M ZieglerReginald M Penner
Apr 27, 2021·Advanced Science·Dong Wook KimUnyong Jeong
May 22, 2021·Advanced Healthcare Materials·Quanxia LyuWenlong Cheng
Jun 22, 2021·Nanoscale·Linling XuAli Zavabeti
Jun 25, 2020·ACS Applied Materials & Interfaces·Laicong QiaoGuozhen Liu
Sep 27, 2019·ACS Applied Materials & Interfaces·Liming MiaoHaixia Zhang
Oct 19, 2019·Analytical Chemistry·Juliane R SempionattoJoseph Wang
Sep 11, 2019·ACS Applied Materials & Interfaces·Su-Kyoung KimSei Kwang Hahn

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