Bombardier beetle based biosensor.

H S Nakatani; G de Oliveira Neto; O E Godinho; L M Aleixo; K Zinner

doi:10.1016/0956-5663(96)86785-6

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Bombardier beetle based biosensor.

H S Nakatani·G de Oliveira Neto·O E Godinho·L M Aleixo·K Zinner

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Abstract

A biosensor constructed by combining an oxygen electrode with the liquid ejected by bombardier beetles (Pheropsophus aequinoctialis) immobolized on a collagen membrane is developed for hydrogen peroxide. The sensor presents a linear range of 2.0 x 10(-4)-2.0 x 10(-3) M and a reproductibility of approximately 2%. It shows a better lifetime than similar ones employing purified catalase. The selectivity is good since other enzymes are not present in the natural source employed.

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Animals Biosensing Techniques Calibration Catalase Coleoptera Hydrogen Peroxide Hydrogen-Ion Concentration Linear Models Membranes, Artificial Peroxidase Reproducibility of Results Temperature Journal Article Research Support, U.S. Gov't, Non-P.H.S.

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H S Nakatani, G de Oliveira Neto, O E Godinho, L M Aleixo, K Zinner. 1996. Bombardier beetle based biosensor.. https://doi.org/10.1016/0956-5663(96)86785-6

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