Well-dispersed poly(cysteine)-Ni(OH)2 nanocomposites on graphene-modified electrode surface for highly sensitive non-enzymatic glucose detection

Xue, Yuanyuan; Tian, Bowen; Wang, Meijuan; Zhai, Tingting; Li, Rui; Tan, Liang

doi:10.1016/j.colsurfa.2020.124549

Cited by 6 publications

(3 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Non-enzymatic Graphene: Metal-based Sensorssupporting

confidence: 89%

“…Dilution of human serum samples was mandatory. RSD values decreased as glucose concentration was increased (1.49 and 0.66% for glucose concentration 4.61 and 7.99 mM, respectively) and were similar to those reported by Darvishi et al 44 A unique methodology for the development of nonenzymatic sensors is the combination of NG and Ni/NiO nanoparticles with mixed-valence states (a mixed state of Ni and NiO enhances the activation rate and facilitate the electrochemical reaction). This approach was chosen since a multivalent system can potentially offer higher electrical conductivity as well as superior catalytic kinetics and dynamics.…”

Section: Non-enzymatic Graphene: Metal-based Sensorssupporting

confidence: 86%

“…The sensor could effectively determine glucose in concentrations found in the saliva of healthy and diabetic people (0.23-1.77 mM). 42 Darvishi et al 43 created a glucose sensor consisting of a porous 3D hydrogel of gelatin methacryloyl (GelMA) combined with nickel nanoparticles and rGO, whereas Xue et al 44 created poly(cysteine)-Ni(OH) 2 nanocomposites (Pcys-Ni (OH) 2 ) and they placed them on graphene-modified GCE (GCE/GN/Pcys-Ni(OH) 2 ). Nickel nanomaterials are excellent catalysts for glucose oxidation due to the formation of a redox couple Ni(II)/Ni(III) on the electrode surface in an alkaline solution.…”

Section: Non-enzymatic Graphene: Metal-based Sensorsmentioning

confidence: 99%

See 2 more Smart Citations

Is graphene the rock upon which new era continuous glucose monitors could be built?

Papanikolaou

Simos

Spyrou

et al. 2022

Exp Biol Med (Maywood)

View full text Add to dashboard Cite

Diabetes mellitus’ (DM) prevalence worldwide is estimated to be around 10% and is expected to rise over the next decades. Monitoring blood glucose levels aims to determine whether glucose targets are met to minimize the risk for the development of symptoms related to high or low blood sugar and avoid long-term diabetes complications. Continuous glucose monitoring (CGMs) systems emerged almost two decades ago and have revolutionized the way diabetes is managed. Especially in Type 1 DM, the combination of a CGM with an insulin pump (known as a closed-loop system or artificial pancreas) allows an autonomous regulation of patients’ insulin with minimal intervention from the user. However, there is still an unmet need for high accuracy, precision and repeatability of CGMs. Graphene was isolated in 2004 and found immediately fertile ground in various biomedical applications and devices due to its unique combination of properties including its high electrical conductivity. In the last decade, various graphene family nanomaterials have been exploited for the development of enzymatic and non-enzymatic biosensors to determine glucose in biological fluids, such as blood, sweat, and so on. Although great progress has been achieved in the field, several issues need to be addressed for graphene sensors to become a predominant material in the new era of CGMs.

show abstract

Section: Non-enzymatic Graphene: Metal-based Sensorssupporting

confidence: 89%

Section: Non-enzymatic Graphene: Metal-based Sensorssupporting

confidence: 86%