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首页> 外文期刊>International Journal Precision Engineering Manufacturing-Green Technology >Correction to: Fabrication of Enzymatic Biofuel Cell with Electrodes on Both Sides of Microfluidic Channel
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Correction to: Fabrication of Enzymatic Biofuel Cell with Electrodes on Both Sides of Microfluidic Channel

机译：校正至：在微流体通道的两侧均带有电极的酶促生物燃料电池的制造

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摘要

Enzymatic biofuel cells (EBFCs) that utilize glucose as fuel in a human body to produce electricity are being explored as promising alternatives to power implantable devices. However, some limitations need to be overcome to render such micro-electronic devices practically applicable. Here, we propose a microfluidic EBFC architecture with electrodes on both sides of the microchannel and its fabrication via stencil method. Multiwalled carbon nanotube (MWCNT) electrodes are fabricated on both sides of a Y-shaped microfluidic channel to reduce the effect of the depletion boundary layer and cross-diffusional mixing of the fuel and oxidant, which are functions of the distance from the microchannel inlet. Therefore, the microchannel length is reduced by half, while maintaining the same MWCNT electrode area. The microchannel is produced by polydimethylsiloxane (PDMS) casting whereas the electrodes are fabricated by a PDMS stencil, using MWCNT patterned on etched indium tin oxide glass. The electrodes are modified with glucose oxidase and laccase via direct covalent bonding. The cell performance is studied at different microchannel heights and flow rates, obtaining a maximum power and current density of 153 mu W cm(-2) and 450 mu A cm(-2), respectively, at a microchannel height of 450 mu m and flow rate of 25 mLh(-1). The double-layer EBFC shows a 23% improvement in the performance compared to a single-layer EBFC.
机译：利用葡萄糖作为人体燃料来发电的酶促生物燃料电池（EBFC）已被研究为可植入设备的有前途的替代方法。然而，需要克服一些限制以使这样的微电子设备切实可行。在这里，我们提出了一种在微通道两侧带有电极的微流EBFC体系结构，并通过模版方法进行了制造。多壁碳纳米管（MWCNT）电极制作在Y形微流通道的两侧，以减少耗尽边界层的影响以及燃料和氧化剂的交叉扩散混合，这是距微通道入口的距离的函数。因此，在保持相同的MWCNT电极面积的同时，微通道长度减少了一半。微通道是通过聚二甲基硅氧烷（PDMS）浇铸生产的，而电极是通过PDMS模版使用在蚀刻的铟锡氧化物玻璃上构图的MWCNT制成的。电极通过直接共价键被葡萄糖氧化酶和漆酶修饰。在不同的微通道高度和流速下研究电池性能，在450微米的微通道高度和250微米的微通道高度分别获得最大功率和电流密度分别为153μW cm（-2）和450μAcm（-2）。流速为25 mLh（-1）。与单层EBFC相比，双层EBFC的性能提高了23％。

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