Fabrication of graphene/prussian blue composite nanosheets and their electrocatalytic reduction of H2O2

One-pot green synthesis of Prussian blue nanocubes decorated reduced graphene oxide using mushroom extract for efficient 4-nitrophenol reduction

“…Therefore, 4-NP determination in 37 environmental samples has been of high interest. Chromatography [6,7], 28] have been used as substrates to 51 assemble PB nanomaterials. Meanwhile, a simple way to increase the stability of the 52 PB-based biosensors is to improve the intimate contact between PB and its conductive 53 support.…”

“…Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Nitrophenols are a class of anthropogenic, toxic, inhibitory and biorefractory 28 organic compounds which are used extensively in the production of pesticides, dyes 29 and pharmaceuticals [1,2]. In particular, 4-Nitrophenol (4-NP)，a toxic hydrolysis 30 product of the insecticides parathion and paraoxon, exists not only in wastewater from 31 industries such as refineries，but also in fresh-water and marine environments [3].…”

Sensitive electrochemical immunoassay of carcinoembryonic antigen with signal dual-amplification using glucose oxidase and an artificial catalase

“…The PBGPs were prepared according to the literature with a little modification [15]. 0.2 mL GP dispersion obtained above was added into 50 mL pH 1.5 HCl containing 0.065 g FeCl 3 ·6H 2 O, 0.085 g K 3 Fe(CN) 6 and 0.372 g KCl.…”

“…Usually, the synthesis is carried out by the direct reaction in an aqueous solution containing Fe 3+ and [Fe(CN) 6 ] 4− or Fe 2+ and [Fe(CN) 6 ] 3− . Interestingly, PB can be simply prepared by the one-step reaction between Fe 3+ and [Fe(CN) 6 ] 3− on the surface of graphene nanosheets by using graphene nanosheets as reduction reagents [15]. The PB-GP hybrid nanosheets could be not only used as a building nanomaterial for the fabrication of the sensors, but also utilized as an artificial enzyme toward the catalytic reduction of H 2 O 2 .…”

A Review: Nanomaterials Applied in Graphene-Based Electrochemical Biosensors

“…The detection limit in the linear range of 0.02-0.2 mM was 1.9 μM with a sensitivity of 196.6 μA mM −1 cm −2 . (124) In addition, PB can also be used for the construction of DNA-based biosensors. Bo et al (125) investigated the direct electrochemical behavior of single-stranded DNA on chitosan and PB-modified graphene paste electrodes when employed to detect the target DNA hybridization.…”