A novel electrochemical assay to quantify transglutaminase activity is reported. The assay is based on the enzyme-controlled diffusion of Fe(CN)6(3-/4-) through amino-functionalized nanochannels of a mesoporous silica thin film on a Au surface in the presence of N-benzyloxycarbonyl-L-glutaminylglycine.

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http://dx.doi.org/10.1039/c4cc05083eDOI Listing

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