“…Because the MNPs were formed in the interstitial spaces of multiple enzyme molecules, the precipitated nanohybrids were composed of MNPs dispersed on enzyme aggregates with mesoporous amorphous suprastructure (Figure d). Another example was reported by Cheng and co‐workers, in which ultrasmall platinum nanoparticles (Pt NPs) were synthesized in the interior of enzymes such as glucoamylase (GA), glucose oxidase (GOD), catalase (CAT), and proteinase K (ProK). To fabricate enzyme‐Pt NP conjugate (GA‐Pt, GOD‐Pt, CAT‐Pt, or ProK‐Pt), the enzyme (GA (0.1 mg), GOD (0.1 mg), CAT (0.1 mg), and ProK (0.01 mg)) was complexed with chloroplatinic acid (0.5 mL, 38.6 × 10 −3 m ) and followed by in situ reduction of Pt using sodium borohybride (NaBH 4, 0.25 mL, 0.5 m ) in 10 mL phosphate‐buffered saline (PBS, pH = 7.5), respectively.…”