A sensitive enzyme-free electrochemical sensor based on a rod-shaped bimetallic MOF anchored on graphene oxide nanosheets for determination of glucose in huangshui

Abstract

Illustration of the fabrication of NiCo-MOF/GO and its application in glucose determination.

A graphene oxide/polyaniline nanocomposite biosensor: synthesis, characterization, and electrochemical detection of bilirubin

“…The GO spectrum shows two absorption bands located at 219 and 307 nm, which correspond to p / p* (C]C) and n / p* (C]O) groups, respectively. 38,[82][83][84] For the GO-PANI spectrum, the absorption band of p / p* almost disappeared aer incorporating PANI, which indicated precipitation of PANI over GO sheets, causing weakening of the absorption of the benzene rings. Moreover, a new absorption band is shown centered at 300-500 nm, which is related to the binding of PANI with GO sheets.…”

Enzyme-free electrochemical sensor platforms based on transition metal nanostructures for clinical diagnostics

“…, the enzyme-free electrochemical detection of lactic acid and glucose has received serious consideration and made significant development in recent years. 28,29 Over recent years, there have been several enzyme-free electrochemical sensors utilizing a variety of nanostructured materials, comprising noble metallic nanoparticles (gold (Au), platinum (Pt), silver (Ag), and their alloy metals), 30–32 transition metal oxides (copper oxide (CuO), nickel oxide (NiO), manganese oxide (MnO 2 ), Co 3 O 4 , and their nanocomposites), 33,34 graphene nanocomposites, 35 metal–organic frameworks, 36,37 and transition metal chalcogenides, 15,38–45 were developed. As depicted in Fig.…”

Molecular simulation study on permeation behavior of small molecules in graphyne/polypyrrole mixed matrix membrane

“…17,[37][38][39][40] The study of graphene and its modified graphene as fillers for MMMs has been extensive. 37,41,42 Whereas graphyne has been less studied as filler, it is necessary to investigate the effect of graphyne filling of MMMs on the permeability behavior of molecules. The common small molecules H 2 O, CO 2 , and O 2 were selected for study because of their simple configuration and single force, which are the most common in routine mixed-matrix membranes used in packaging and barrier film applications.…”

“…Graphyne is a two‐dimensional carbon material with large cavities in a conjugated structure similar to graphene, with a highly symmetric structure and semiconducting properties, which is a good filler choice for thermal conductivity, diffusion, and other research fields 17,37–40 . The study of graphene and its modified graphene as fillers for MMMs has been extensive 37,41,42 . Whereas graphyne has been less studied as filler, it is necessary to investigate the effect of graphyne filling of MMMs on the permeability behavior of molecules.…”