Table 4: Storage stability of immobilized HRP on different carriers.

Carrier No. of Days of Storage Relative Activity (%) Reference
PET-g-AAm fiber 60 61 [39]
RGO·NH2 35 55 [40]
Fe3O4@PAA-6-arm-PEG-NH2 60 71.0 [42]
Fe2O3-Chitosan-Graphene oxide 30; 60 93; 85 Present work