Solar biosupercapacitor

Here we report on an entirely new kind of bioelectronic device - a solar biosupercapacitor, which is built from a dual-​feature photobioanode combined with a double-​function enzymic cathode. The self-​charging biodevice, based on transparent nanostructured indium tin oxide electrodes modified with biol. catalysts, i.e. thylakoid membranes and bilirubin oxidase, is able to capacitively store electricity produced by direct conversion of radiant energy into elec. energy. When self-​charged during 10 min, using ambient light only, the biosupercapacitor provided a max. of 6 mW m-​ 2 at 0.20 V