An electrical skin patch that can be flexibly attached to the skin and activated in 30 s by adding water was developed by integrating a built-in flexible glucose/O 2 biobattery. The latter consisted of a glucose dehydrogenase (GDH)-modified anode and an iron(II) phthalocyanine (FePc)-modified cathode. The quick activation of the patch components by water addition deep inside the patch was achieved by using a flexible water-absorbing sponge containing glucose and buffer electrolyte. A patch current of about 10 μ A was maintained for more than 12 h by optimizing the amount of glucose and electrolyte contained in the sponge tank. The entire patch was soft and highly flexible to conform to curved skin surfaces, owing to its thinness (<2 mm) and the flexibility of all the patch components, including the enzyme electrodes based on the carbon fabric.

中文翻译：

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完全由柔性生物电池驱动的有机皮肤电动贴剂

通过整合内置的柔性葡萄糖/ O 2生物电池，开发出了一种可以灵活地附着在皮肤上并在30秒内通过添加水激活的皮肤电动贴片。后者由葡萄糖脱氢酶（GDH）修饰的阳极和铁（II）酞菁铁（FePc）修饰的阴极组成。通过使用含有葡萄糖和缓冲电解质的柔软吸水海绵，可通过在贴剂内部深处加水来快速激活贴剂成分。通过优化海绵罐中的葡萄糖和电解质的量，可将约10μA的贴片电流维持超过12小时。整个贴片柔软且具有高度柔韧性，以适应弯曲的皮肤表面，这是由于其薄（<2 mm）以及所有贴片组件（包括基于碳纤维的酶电极）的柔韧性。