Efficient improvement in non-enzymatic glucose detection induced by the hollow prism-like NiCo2S4 electrocatalyst.
Dandan ChuLi YanQiwen ChenXue-Qiang ChuDanhua GeXiaojun ChenPublished in: Dalton transactions (Cambridge, England : 2003) (2021)
Hollow prism-like NiCo2S4 materials (NiCo2S4 HNPs) were successfully fabricated by a two-step method. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and powder X-ray diffraction (XRD) confirmed the morphology and structure of the as-prepared NiCo2S4 nanoprisms. A non-enzymatic sensor based on NiCo2S4 HNPs was constructed with outstanding electrochemical activity towards glucose oxidation in alkaline medium. The sensor showed a rapid response time (∼0.1 s), a high sensitivity of 82.9 μA mM-1 cm-2, a wide linear range (0.005-20.2 mM) and a detection limit of 0.8 μM (S/N = 3) with a good selectivity and reproducibility. Additionally, the proposed electrode also confirmed the feasibility in practical blood serum. These results indicate that NiCo2S4/ITO has great potential in the development of non-enzymatic glucose sensor applications.
Keyphrases
- electron microscopy
- hydrogen peroxide
- loop mediated isothermal amplification
- label free
- blood glucose
- molecularly imprinted
- gold nanoparticles
- metal organic framework
- computed tomography
- ionic liquid
- magnetic resonance
- wastewater treatment
- blood pressure
- magnetic resonance imaging
- glycemic control
- tandem mass spectrometry
- structural basis