Light-addressable potentiometric sensor for biochemical systems.

D G Hafeman; J W Parce; H M McConnell

doi:10.1126/science.3375810

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PubMed · 3375810

Light-addressable potentiometric sensor for biochemical systems.

D G Hafeman·J W Parce·H M McConnell

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Abstract

Numerous biochemical reactions can be measured potentiometrically through changes in pH, redox potential, or transmembrane potential. An alternating photocurrent through an electrolyte-insulator-semiconductor interface provides a highly sensitive means to measure such potential changes. A spatially selectable photoresponse permits the determination of a multiplicity of chemical events with a single semiconductor device.

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Electrolytes Hydrogen-Ion Concentration Light Membrane Potentials Oxidation-Reduction Semiconductors Journal Article Research Support, U.S. Gov't, Non-P.H.S.

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D G Hafeman, J W Parce, H M McConnell. 1988-05-27. Light-addressable potentiometric sensor for biochemical systems.. https://doi.org/10.1126/science.3375810

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