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Article
Enzyme-catalyzed reaction of OPD-H202-HRP voltammetric enzyme-linked immunoassay system
Enzyme-catalyzed reaction of o-phenylenediamine (OPD)-Hz02-horseradish peroxidase (HRP) voltammetric enzyme-linked immunoassay system has been studied in detail with electrochemical analysis, high performance liq...
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Article
Enzyme-catalyzed reaction of voltammetric enzyme-linked immunoassay system based on OAP as substrate
Theo-aminophenol (OAP)-H2O2-horseradish peroxidase (HRP) voltammetric enzyme-linked immunoassay new system has extremely high sensitivity. HRP can be measured with a detection limit of 6.0×1010 g/L and a linear r...
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Article
Structure and characterization of O,O-diethylthiophosphorylhydrazine o-vanillin Schiff base nickel(II) complex: NiC24H36N4O8P2S2
The crystal and molecular structure of the complex of Ni[(C2H5O)2PSNHNCPh(o-O)OMe]2 has been determined by X-ray crystallography. The compound crystallizes in the monoclinic system, space group P21/n, with lattic...
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Article
Crystal Structure of (5,14-Methyl-7,12-dimethyl-1,4,8,11-tetraazadiimine-cyclotetradecylene-N, N′, N″, N′″)nickel(II) Bis(diisopropyldithiophosphate) Complex
The macrocyclic tetradentate Ni(II) compound was obtained in a reaction and determined by X-ray diffraction. The crystal structure shows that the molecule is centrosymmetric, and Ni atom located in a square pl...
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Article
Structure of the adduct of bis(O,O′-diisopropyldithiophosphato) metal with pyridine: Ni[(iPrO)2PS2]2(py)2 and Cd[(iPrO)2PS2]2 (py)2(py = pyridine)
The crystal and molecular structures of the complex of [Ni{(iPrO)2dtp}2(py)2] and [Cd{(iPrO)2dtp}2(py)2] (dtp = dithiophosphate, py = pyridine) have been determined by X-ray crystallography. They are isomorphous....
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Article
Synthesis and crystal structure of trans-bis(O, O′-diisopropylthiophosphoryl-1H-imidazole-N3) bis(O,O′-diisopropyldithiophosphato) nickel(II) complex: Ni[N3-ImSP(OiPr)2]2[S2P(OiPr)2]2 (Im = imidazole; iPr = isopropyl)
The mononuclear complex, Ni[N3-ImSP(OiPr)2]2[S2P(OiPr)2]2 (Im = imidazole; iPr = isopropyl), was unexpectedly obtained in a reaction of bis(O,O′-diisopropyl-dithiophosphato) nickel(II) complex with imidazole liga...
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Article
A thin-layer spectroelectrochemical study of 3,3′,5,5′-tetramethylbenzidine at SnO2:F film optically transparent electrode
The electrooxidation of 3,3′, 5,5′-tetramethylbenzidine (TMB) is dependent on the pH value of Britton-Robinson (B-R) buffer solution. In this work, the electrooxidation behavior of TMB was investigated with a ...
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Article
Electrochemical determination of hydrogen peroxide usingo-dianisidine as substrate and hemoglobin as catalyst
A new electrochemical method for the determination of microamounts of hydrogen peroxide utilizing o-dianisidine (ODA) as substrate and hemoglobin (Hb) as catalyst is described in this paper. Hb can be used as ...
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Article
Electrochemical studies on the interaction of heparin with crystal violet and its analytical application
In this paper, crystal violet (CV) was used to determine heparin concentration by linear sweep voltammetry on a drop** mercury electrode (DME). In Britton-Robinson (B-R) buffer solution, pH 3.0, CV had a wel...
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Article
Microdetermination of Double-stranded DNA by Linear Sweep Voltammetry with Phenosafranine
A novel voltammetric method for the determination of microamounts of fish sperm double-stranded (ds) DNA based on its interaction with phenosafranine (PSF) is proposed in this paper. In a pH 3.5 Britton-Robins...
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Article
Immobilization and hybridization of DNA based on magnesium ion modified 2,6-pyridinedicarboxylic acid polymer and its application for label-free PAT gene fragment detection by electrochemical impedance spectroscopy
A new approach for a simple electrochemical detection of PAT gene fragment is described. Poly(2,6-pyridinedicarboxylic acid) (PDC) modified glassy carbon electrode (GCE) was prepared by potential scan electrop...
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Article
A DNA electrochemical sensor prepared by electrodepositing zirconia on composite films of single-walled carbon nanotubes and poly(2,6-pyridinedicarboxylic acid), and its application to detection of the PAT gene fragment
Carboxyl group-functionalized single-walled carbon nanotubes (SWNTs) and 2,6-pyridinedicarboxylic acid (PDC) were electropolymerized by cyclic voltammetry on a glassy-carbon electrode (GCE) surface to form com...
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Article
Electrocatalytic oxidation of dopamine at an ionic liquid modified carbon paste electrode and its analytical application
A room-temperature ionic liquid N-butylpyridinium hexafluorophosphate was used as a binder to construct an ionic liquid modified carbon paste electrode, which was characterized by scanning electron microscopy and...
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Article
Application of cadmium sulfide nanoparticles as oligonucleotide labels for the electrochemical detection of NOS terminator gene sequences
A mercaptoacetic acid (MAA)-modified cadmium sulfide (CdS) nanoparticle was synthesized in aqueous solution and used as an oligonucleotide label for the electrochemical detection of nopaline synthase (NOS) ter...
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Article
Selective Determination of Diphenhydramine in Compound Pharmaceutical Containing Ephedrine by Flow-Injection Electrochemiluminescence
On the basis of the structural interactions between diphenhydramine (DPH) and ephedrine (EPH) to enhance electrochemiluminescence (ECL) intensity, a flow-injection ECL analysis of DPH in the present of EPH by ...
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Article
Electrocatalytic activity of hemoglobin in sodium alginate/SiO2 nanoparticle/ionic liquid BMIMPF6 composite film
A novel biocompatible composite film containing sodium alginate (SA), room temperature ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6), SiO2 nanoparticle, and hemoglobin (Hb) was fabricated...
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Article
Nano Au/TiO2 hollow microsphere membranes for the improved sensitivity of detecting specific DNA sequences related to transgenes in transgenic plants
Gold nanoparticles (nano Au)/titanium dioxide (TiO2) hollow microsphere membranes were prepared on the carbon paste electrode (CPE) for enhancing the sensitivity of DNA hybridization detection. The immobilization...
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Article
Linear sweep voltammetric studies on the supramolecular complex of alizarin red S with lysozyme and determination of lysozyme
An electrochemical method for the determination of lysozyme (LYS) based on its interaction with alizarin red S (ARS) was established by linear sweep voltammetry in this paper. The electrochemical behaviour of ...
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Article
Highly sensitive electrochemical detection of sequence-specific DNA of 35S promoter of cauliflower mosaic virus gene using CdSe quantum dots and gold nanoparticles
Cadmium selenide (CdSe) quantum dots modified with ethylenediamine were synthesized under hydrothermal conditions, and labeled onto the probe DNA owing to the electrostatic interaction between the amino group ...
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Article
Electrochemical DNA hybridization assay for the FMV 35S gene sequence using PbS nanoparticles as a label
An electrochemical DNA detection method was developed for the 35S promoter from Figwort mosaic virus (FMV 35S) gene sequence by using a microplate hybridization assay with PbS nanoparticles as labels. There are f...
