Design of Double-Shelled CuS Nanocages to Optimize Electrocatalytic Dynamic for Sensitive Detection of Ascorbic Acid

Table 1 Comparison of 2-CuS NCs/GCE with previously reported nonenzymatic AA sensors

Electrodes	Linear range (mM)	Sensitivity (μA mM⁻¹ cm²)	LOD (μM)	Reference
EMGON 5-1/CPE	0–1	78.63	1.54	[29]
Au-PANI/GCE	0.01–12	25.69	8.2	[30]
CF/ZnO/GCE	0.6–1.8	–	156.7	[31]
Ag HN/GCE	0.00017–1.8	35.512	0.06	[32]
GNP-Ag/GCE	0.001–0.2	–	0.88	[33]
RO/Ni	0.57–5.7	296	–	[34]
Bi₂S₃/TNF/GCE	1–10	38	–	[35]
2-CuS NCs/GCE	0.005–1.2	523.7	0.15	This work

EMGON electroactive mesoporous materials organosilica nanocomposites, CPE carbon paste electrode, Au-PANI polyaniline, CF carbon fiber, HN hierarchical nanostructures, GNP graphene nanoplatelets, RO ruthenium oxide, TNF titanate nanofibers