“…There are many reported studies on the POD/OD-like properties of MXene-based nanomaterials. 37,[75][76][77][78][79][80][81][82][83][84] Similar to horseradish peroxidase (HRP), the MXene-based nanomaterials 37 could also catalyze the reaction of the peroxidase substrate 3,3,5,5-tetramethylbenzidine (TMB) in the presence of H 2 O 2 to produce a blue-colored reaction. The catalytic activity was dependent on temperature, pH, and H 2 O 2 concentration (Fig.…”