Table 5.

Metals and constructs used for sensors designed for cholesterol sensing.

Metals	Construct/Support	Year	Authors	Detection Limits/Sensitivities
Pt/Pd	NP decorated chitosan–graphene hybrid nanocomposite incorporating ChOx.	2013	Cao et al. [119]	Linear range (using CV/amperometric detection) 2.2 × 10−6 to 5.2 × 10−4 M, LOD 0.75 mM. Response time <7 s.
Pt/Pd	TiO2–graphene on GCE with ChOx.	2013	Cao et al. [120]	Linear range 5.0 × 10−8–5.9 × 10−4 M. LOD 0.017 µM. Response time <7 s
Au/Pt	ChOx/AuPt–Ch–IL/GCE.	2011	Safavi et al. [118]	Linear ranges (i) 0.05–6.2 mM and (ii) 6.2–11.2 mM. Sensitivity 90.7 µA·mM−1·cm−2. LOD 10 µM.