NiO nanoparticles modified with 5,10,15,20-tetrakis(4-carboxyl pheyl)-porphyrin: Promising peroxidase mimetics for H2O2 and glucose detection

NiO/graphene nanocomposite for determination of H2O2 with a low detection limit

“…The SnO 2 /graphene nanocomposite modified electrode shows excellent selectivity and sensitivity even in the presence of high concentration of uric acid. At the same time, among the metal oxides, NiO is a very promising candidate for electrochemical sensors due to its virtue of low price, natural abundance and catalytic properties [21,22]. For example, Cao et al [23] have reported the synthesis of NiO microfibers for nonenzymatic glucose sensor via an electrospinning method.…”

Highly exposed Pt nanoparticles supported on porous graphene for electrochemical detection of hydrogen peroxide in living cells

“…The effectiveness of the fast and accurate detection of H 2 O 2 is of critical importance. There are numerous kinds of methods developed for the detection of H 2 O 2 , for instance, titrimetry (Klassen et al, 1994), photometry (Lobnik and Ajlakovi, 2001), chemiluminescence (Zhang and Wong, 1999), high performance liquid chromatography (Effkemann et al, 1998) and electrochemistry (Liu et al, 2014;Zhang, 2008;Zhang et al, 2014b). Among these methods, the electrochemical technique has received considerable interest because of its easy operation, fast response, low detection limit and high sensitivity.…”

Spectrophotometric determination of mercury(II) ions based on their stimulation effect on the peroxidase-like activity of molybdenum disulfide nanosheets

“…The corresponding kinetic parameters, including K m and ν max of MoS 2 in the presence and absence of Hg 2+ and documented HRP [6], are listed in Table 1. K m represents the affinity of a given enzyme toward the substrate: smaller value of K m indicates stronger affinity between the enzyme and the substrate (TMB or H 2 O 2 ) [37][38][39]. Evidently, the K m values were much lower in the presence of Hg 2+ , thus indicating the strong stimulation effect of Hg 2+ on the peroxidase-like activity of MoS 2 -NSs.…”