Conjugated polymer inverse opals for potentiometric biosensing

Abstract

The conjugated polymer inverse opals for potentiometric biosensing were studied. A potentiometric inverse opal biosensor into which an enzyme, creatinine deiminase (CD), was distributed within ordered arrays of hollow poly(pyrrole) capsules of wall thickness 70-75 nm, was designed. The sensing enhancement was found to be independent of the film thickness, with a maximum seven-fold enhancement obtained.