Microperoxidase-11@PCN-333 (Al)/three-dimensional macroporous carbon electrode for sensing hydrogen peroxide

In this work, a novel hydrogen peroxide (H2O2) biosensor was developed based on the microperoxidase-11 (MP-11) encapsulated in metal-organic frameworks, PCN-333 (Al) (PCN stands for porous coordination network), which was grown on the three-dimensional (3D) kenaf stem-derived porous carbon (3D-KSC) firmly and uniformly. The ball-flower-like PCN-333 (Al) with mesopores of 5.5 nm was especially suitable for encapsulating MP-11 (1.1 × 1.7 × 3.3...