Ru(DMSO)4Cl2 nano-aggregated Nafion membrane modified electrode for simultaneous electrochemical detection of hypoxanthine, xanthine and uric acid

Kumar, Annamalai Senthil; Swetha, Puchakayala

doi:10.1016/j.jelechem.2010.02.031

Cited by 60 publications

(15 citation statements)

References 43 publications

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“…As shown in Fig. 9A, the highest current peak value was obtained at pH 7.0, which is consistent with the previous literature [32]. Hence, pH 7.0 was selected as the optimum level for determining Xa.…”

Section: The Effect Of Phsupporting

confidence: 89%

One-pot synthesis of an RGO/ZnO nanocomposite on zinc foil and its excellent performance for the nonenzymatic sensing of xanthine

Zhang

Dong

Qian

et al. 2015

Sensors and Actuators B: Chemical

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Section: The Effect Of Phsupporting

confidence: 89%

One-pot synthesis of an RGO/ZnO nanocomposite on zinc foil and its excellent performance for the nonenzymatic sensing of xanthine

Zhang

Dong

Qian

et al. 2015

Sensors and Actuators B: Chemical

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“…Their concentration levels are sensitive indicators of certain diseases, including perinatal asphyxia, cerebral ischemia, hyperuricemia, gout CONTACT Junwei Yang yangjw@sdju.edu.cn [6][7][8], and positive effect on cardiovascular system [9][10][11][12][13]. Therefore, the accurate measurement of HX, XA, and UA is very important in food, biochemical, and clinical diagnosis [14][15][16][17][18]. Various techniques have been developed for the simultaneous determination of HX, XA, and UA, such as enzymatic methods [19][20][21], as well as a highperformance liquid chromatographic method [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Density functional theory study of interaction of graphene with hypoxanthine, xanthine, and uric acid

2016

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Hypoxanthine (HX), xanthine (XA), and uric acid (UA) are important molecules in human beings. However, the physics underlying the interaction between these molecules and carbon nanomaterials is still unclear. In this study, we theoretically anlaysed the interaction of the graphene with HX, XA, and UA via the LDA, Perdew-Burke-Ernzerhof, and a second version of van der Waals (vdW)-DF2 exchange-correlation functionals of density functional theory. It was observed that these molecules could be adsorbed on the surface of the graphene steadily. The adsorption energies of these molecules on the graphene for the same site in vdW-DF2 functional show the following ordering: UA > XA > HX, the adsorption distances the following ordering: UA < XA < HX. The mechanism of this stable adsorption was revealed to be π -π and O-π interactions between these molecules and the graphene. Simulated scanning tunnelling microscopy (STM) images of HX, XA, and UA on the surface of the graphene layer as application, HX can be distinguished from XA and UA via the STM technique as a result of the interaction between the graphene and these molecules. The findings of this study provide a theoretical reference in the development and design of highly accurate biodevices and biosensors.

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“…The concentration levels of Xa and HXa in body fluids are sensitive indexes for the pathology conditions of gout, hyperuricemia and renal failure. [1][2] Therefore, simultaneous detection of these two compounds have considerable significance in biochemical and clinical diagnosis. Various methods have been reported to determine the purine degradation products, including high performance liquid chromatography (HPLC), 3 photoion mass spectroscopy, 4 chemiluminescence, 5 enzymatic method, [6][7] capillary electrophoresis (CE) 8 and electrochemistry, 2,9-13 whereas HPLC methods require fastidious sample preparations, prolonged analysis time and expensive materials, enzymatic methods are unstable and very expensive, and CE methods need expensive apparatus, only electrochemical approaches are relatively easy and fast for determination of Xa and HXa.…”

Section: Introductionmentioning

confidence: 99%

The Influencing of Preanodized Inlaying Ultrathin Carbon Paste Electrode on the Oxidation for the Xanthine and Hypoxanthine by the Hydrogen Bond

Qiao

et al. 2015

J Chinese Chemical Soc

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In this paper, a pre-anodized inlaying ultrathin carbon paste electrode (PAIUCPE) with 316L as a matrix was constructed by a simple and fast electrochemical pretreatment. Using xanthine (Xa) and hypoxanthine (HXa) as the target compounds, the pH effects compositions of buffer solution, the accumulation times, hydrogen bond catalysis, degree of auxiliary electrode reaction on the size of peak currents (I p ) of Xa and HXa was discussed in detail. Also, it was proposed that Xa and HXa were respectively absorbed at the surface of PAIUCPE through hydrogen bonding. The influencing mechanisms of the PAIUCEP on electrochemical oxidation of Xa and HXa were explained in detail. Moreover, the linear relationships for the Xa and HXa were obtained in the range of 6´10 -8 -3´10 -5 mol/L and 2´10 -7 -7´10-5 mol/L, respectively. The detection limits for the Xa and HXa were 1.2´10 -8 mol/L and 5.7´10 -8 mol/L, respectively. Moreover, this proposed method could be applied to determine the Xa and HXa in human urine simultaneously with satisfactory results.

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Ru(DMSO)4Cl2 nano-aggregated Nafion membrane modified electrode for simultaneous electrochemical detection of hypoxanthine, xanthine and uric acid

Cited by 60 publications

References 43 publications

One-pot synthesis of an RGO/ZnO nanocomposite on zinc foil and its excellent performance for the nonenzymatic sensing of xanthine

One-pot synthesis of an RGO/ZnO nanocomposite on zinc foil and its excellent performance for the nonenzymatic sensing of xanthine

Density functional theory study of interaction of graphene with hypoxanthine, xanthine, and uric acid

The Influencing of Preanodized Inlaying Ultrathin Carbon Paste Electrode on the Oxidation for the Xanthine and Hypoxanthine by the Hydrogen Bond

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