Prussian blue modified metal–organic framework MIL-101(Fe) with intrinsic peroxidase-like catalytic activity as a colorimetric biosensing platform

Nanosized porous PB/MIL-101(Fe) was facilely prepared by growing Prussian blue (PB) on MIL-101(Fe). It has more active sites and pores for peroxidase substrates and gives a simple, sensitive colorimetric assay to detect H₂O₂and glucose.