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In this paper, an insect biofuel cell (BFC) using trehalose included in insect hemolymph was developed. The insect BFC is based on trehalase and glucose oxidase (GOD) reaction systems which oxidize β-glucose obtained by hydrolyzing trehalose. First, we confirmed by LC-MS that a sufficient amount of trehalose was present in the cockroach hemolymph (CHL). The(More)
This paper reports the first demonstration of a biofuel cell (BFC) using trehalose found in insect hemolymph. The analysis results by liquid chromatography-mass spectrometry (LC-MS) showed that trehalose concentration included in cockroach hemolymph (CHL) was high enough to utilize as a source of power generation. The maximum power density of 6.07(More)
This paper reports an insect mountable biofuel cell (imBFC) which generates electric power from trehalose found in insect hemolymph and refuel trehalose from insect hemolymph by diffusion automatically. First, we designed and fabricated the imBFC consisted of a connector, two chambers, a dialysis membrane and electrodes. Then, we evaluated the power density(More)
This paper reports the potentiality of a semi-permanent integrated power source mounted on an insect and using trehalose, the main sugar of insect hemolymph. A self-circulation system of cockroach hemolymph powered by the dorsal vessel of a cockroach was developed for self-refueling of an insect-mountable biofuel cell (BFC) and connected to a cockroach with(More)
A self-circulation system is presented for a self-refueling insect-mountable biofuel cell (BFC) using trehalose, the main sugar of insect hemolymph. The maximum power density of 10.5 μW/cm was obtained from cockroach hemolymph (CHL) with added trehalase and mutarotase. The electrodes were protected by a dialysis membrane to prevent decrease of open-circuit(More)
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(More)
This paper reports a potentiality of a long term-durable self-refueling insect-mountable biofuel cell (iBFC) using trehalose, the main sugar of insect hemolymph. We developed a gold nanoparticle (AuNP)-based glucose oxidation system by sputtering Au onto an electrode. A maximum power density of 47.7 &#x03BC;W/cm<sup>2</sup> was obtained from 100 mM(More)
This paper reports stacked biofuel cells (SBFC) separated by artificial lipid bilayers which are bimolecular membranes and several nm membranes. First, we designed and fabricated SBFCs with a screen printer and a 3D printer. Then, we evaluated electrochemical reaction of electrodes of the SBFC and measured the output voltages of single, double, triple and(More)
This paper reports the first demonstration of a self-powered environmental monitoring robot which backpacked a biofuel cell (BFC) and a micro wireless sensor module on insect. Electric power was generated from blood sugar in its hemolymph by using the BFC and temperature and humidity around it was monitored by using the wireless sensor module. Furthermore,(More)
This paper repots a demonstration of an IC driving by a trehalose biofuel cell (BFC) mounted on insects. First, we evaluated a trehalose oxidized anode. Then, we fabricated an insect-mountable BFC (imBFC) and the maximum power density of 42.9 &#x03BC;W/cm<sup>2</sup> was obtained from the imBFC. Finally, we demonstrated to flash a LED by the imBFC. These(More)
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