Abstract

This paper presents a novel microgenerator of CO₂(carbon dioxide) gas. NaHCO₃(sodium bicarbonate) in a chamber is decomposed by the underlaid microheater. Alternatively, water droplet is caged by paraffin layer and released by heating. The released water dissolve HOC(COOH)(CH₂COOH)₂(citric acid) powder and then. NaHCO₃ reacts with the solubilized HOC(COOH)(CH₂COOH)₂ and CO₂ is produced. Micropumps actuated by CO₂ generation were fabricated. A portable micro cell incubator of which pH is controlled by the produced CO₂ is also presented as one of the further applications.

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