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Composite films of Prussian blue and N-substituted polypyrroles: covalent immobilization of enzymes and application to near infrared optical biosensing

DOI to cite this document:
Koncki, Robert ; Wolfbeis, Otto S.
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Date of publication of this fulltext: 06 Jun 2011 11:35


We demonstrate the feasibility of optical biosensing using a material which, in essence, is a modified inorganic film to which various enzymes were covalently attached. Thin and transparent blue films composed of Prussian blue and incorporated into a network of N-substituted polypyrroles are sensitive to pH in the 5–9 range at 720 nm wavelength and can be modified with enzymes to result in the ...


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