Nanoporous bioelectrochemical sensors for measuring redox potential in biological samples
AssigneesThe Regents of the University of Michigan, Virginia Commonwealth University
InventorsRodney C. Daniels, Kevin R. Ward, Maryanne M. Collinson
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Abstract
A bioelectrochemical sensor utilizing a nanoporous gold electrode. The bioelectrochemical sensor is suitable for measuring redox in biologic media while having increased resistance to biofouling as compared to conventional electrodes such as planar gold electrodes, due to greater exposed surface area of the three-dimensional ligature structure defining the nanopores. The nanopores have a pore size of 5-100 nm, preferably with an average pore size of less than 50 nm, and more preferably with an average pore size of less than 20 nm.
Claims10
A bioelectrochemical sensor, comprising:
- a first electrode including a nanoporous precious metal, the nanoporous precious metal of the first electrode being nanoporous gold, the first electrode including
- a plurality of gold coated strips;
- an etched gold leaf disposed over a surface of the plurality of gold coated strips;
- a strip of TEFLON tape disposed over the etched gold leaf, the TEFLON tape having a hole therethrough positioned over the etched gold leaf;
- and
- a reference electrode.
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Dependencies are inferred from the claim text.