3D graphene foams decorated by CuO nanoflowers for ultrasensitive ascorbic acid detection

Self-assembly of porous copper oxide hierarchical nanostructures for selective determinations of glucose and ascorbic acid

“…Ascorbic acid is a well-known reducing agent both in vivo and in vitro. 38 Hence, the oxidation of ascorbic acid is preferentially onto CuO HSs due to relatively higher oxygen-surface content as shown in EDS data. The oxidation process of ascorbic acid can be described in the following steps;…”

WO3 nanoparticles based direct electrochemical dopamine sensor in the presence of ascorbic acid

“…Ye Ma et al have explored 3D graphene network @ WO 3 nanowire sensor for the electrochemical biosensing of DA with the lowest detection limit of 238 nmol L -1 [6]. The WO 3 exists in different polymorphic forms with intriguing physical and chemical properties depending on the preparation conditions.…”

“…Although, the DA can be determined by chromatography [3], fluorometry [4], electrochemiluminescence [5], calorimetric [6] and high performance liquid chromatography (HPLC), electrochemical method is widely employed owing to its fast detection, simplicity, reproducibility, costeffectiveness, potential for miniaturization and capability of in-situ detection.…”

A novel nonenzymatic biosensor for evaluation of oxidative stress based on nanocomposites of graphene blended with CuI

“…The low resistivity and high specific surface area of Gr give it potential application in electrochemical biosensor field [32,33]. Although the poor detection limit of bare Gr restricts its application in living cells, however, the modification of active metals or compounds can obviously improve its catalytic effect [34,35]. Currently, Gr has been conjugated with Pt [36e38], Au [39], Pd [40] and other noble metals to form nanocomposites for detection of H 2 O 2 , but its cost is relatively high, and the production process is relatively complicated [4].…”