Electrochemical H2O2 biosensor based on horseradish peroxidase encapsulated protein nanoparticles with reduced graphene oxide-modified gold electrode

Table 1 Comparison of the electrochemical performance of HRP-based biosensors

Modified electrode	Potential (V)	Linear range (μM)	Detection limit (μM)	Reference
HRP/TB/CCB	− 0.25	0.429–455	0.17	[35]
HRP-MIL100(Cr)-B	− 0.3	0.5–3000	0.1	[36]
HRP-BMIM-BF₄/SWCNTs/CFUME	− 0.35	0.49–10.2	0.13	[37]
Flower-like Bi₂WO₆	− 0.35	0.5–100	0.18	[38]
HRP-MoS₂-Gr	− 0.08	0.2–1.103	0.049	[39]
Co₃O₄/MWCNTs/gelatin/HRP	− 0.3	0.74–19	0.74	[40]
HEPNP/rGO/Au electrode	− 0.45	0.01–100	0.01	Present work

TB toluidine blue, CCB ceramic composite biosensor, MIL100(Cr)-B mil100(cr)-b boronic acid functionalized metal–organic frameworks, BMIM 1-butyl-3-methylimidazolium tetrafluoroborate, SWCNTs Single-walled carbon nanotubes, CFUME Carbon fiber ultramicroelectrodes, MoS₂ molybdenum disulfide gr graphene, Co₃O₄ cobalt oxide, MWCNTs multiwall carbon nanotubes, HEPNP horseradish peroxidase encapsulated protein nanoparticles, rGO reduced graphene oxide Au: gold electrode