Pt-Cluster-Embedded Metal–Organic Frameworks-Derived Fe@C as Dual-Enzyme Mimics for NADH Detection in Serum

decomposition process. These findings indicate that the catalytic performance of Pt/Fe@C in NOX-like and POD-like reactions can be significantly improved. The colorimetric sensor detects NADH with a limit of detection as low as 0.4 nM, signifying a breakthrough in enzyme-mimicking nanozyme technology for precise NADH measurement.