Department of Mechanical Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
Department of Mechanical Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
Biosens Bioelectron. 2016 Apr 15;78:390-395. doi: 10.1016/j.bios.2015.11.077. Epub 2015 Nov 27.
This study investigated an enzymatic biofuel cell (BFC) which can be backpacked by cockroaches. The BFC generates electric power from trehalose in insect hemolymph by the trehalase and glucose dehydrogenase (GDH) reaction systems which dehydrogenate β-glucose obtained by hydrolyzing trehalose. First, an insect-mountable BFC (imBFC) was designed and fabricated with a 3D printer. The electrochemical reaction of anode-modified poly-L-lysine, vitamin K3, diaphorase, nicotinamide adenine dinucleotide, GDH and poly(sodium 4-styrenesulfonate) in the imBFC was evaluated and an oxidation current of 1.18 mAcm(-2) (at +0.6 V vs. Ag|AgCl) was observed. Then, the performance of the imBFC was evaluated and a maximum power output of 333 μW (285 μW cm(-)(2)) (at 0.5 V) was obtained. Furthermore, driving of both an LED device and a wireless temperature and humidity sensor device were powered by the imBFC. These results indicate that the imBFC has sufficient potential as a battery for novel ubiquitous robots such as insect cyborgs.
本研究开发了一种可由蟑螂携带的酶促生物燃料电池（BFC）。该 BFC 通过海藻糖酶和葡萄糖脱氢酶（GDH）反应系统，从昆虫血淋巴中的海藻糖中产生电能，该反应系统将通过水解海藻糖获得的β-葡萄糖脱氢。首先，使用 3D 打印机设计并制造了一种可用于昆虫的 BFC（imBFC）。在 imBFC 中，对经修饰的聚-L-赖氨酸、维生素 K3、二氢还蛋白、烟酰胺腺嘌呤二核苷酸、GDH 和聚（4-苯乙烯磺酸钠）的阳极电化学反应进行了评估，并观察到 1.18 mAcm(-2) 的氧化电流（在 +0.6 V 对 Ag|AgCl）。然后，对 imBFC 的性能进行了评估，并获得了 333 μW（285 μW cm(-)(2)）的最大输出功率（在 0.5 V 时）。此外，imBFC 为 LED 设备和无线温度和湿度传感器设备供电。这些结果表明，imBFC 作为新型无处不在的机器人（例如昆虫半机械人）的电池具有足够的潜力。
