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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Electroanalytical properties of aldehyde biosensors with a hybrid-membrane composed of an enzyme film and a redox Os-polymer film.

Aldehyde biosensors were constructed by cross-linking formaldehyde dehydrogenase ( FDH) or aldehyde dehydrogenase (ADH) and bovine serum albumin on the surface of a redox Os-polymer-coated electrode. The prepared aldehyde biosensors responded rapidly (within 30 s) to aldehydes without the addition of a soluble mediator, because the inner redox Os-polymer film effectively mediated the electron transfer from NADH generated enzymatically into the outer enzyme film to a glassy carbon electrode. An FDH/Os-polymer electrode responded linearly over the concentration range of 2 x 10(-6)-5 x 10(-4) M for formaldehyde, while an ADH/Os-polymer electrode, though responding similarly to long chain aldehydes, such as propionaldehyde and butylaldehyde, responded linearly over the concentration range of 4 x 10(-6)-2 x 10(-4) M for acetaldehyde.[1]

References

  1. Electroanalytical properties of aldehyde biosensors with a hybrid-membrane composed of an enzyme film and a redox Os-polymer film. Yao, T., Handa, S. Analytical sciences : the international journal of the Japan Society for Analytical Chemistry. (2003) [Pubmed]
 
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