A novel hydrogen peroxide sensor based on Ag nanoparticles electrodeposited on DNA-networks modified glassy carbon electrode

Kang, Chul; Song, Yonghai; Yao, Yong; Huang, Zhengkai; Wang, Li

doi:10.1016/j.elecom.2008.02.016

Cited by 208 publications

(72 citation statements)

References 26 publications

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“…A rapid, accurate and reliable determination of hydrogen peroxide (H 2 O 2 ) traces is important issue due to the fact that H 2 O 2 plays a crucial role in many fields including food, pharmaceutical, chemical and biochemical industries, clinical control and environmental protection [1]. Determination of the concentration of hydrogen peroxide is often an essential issue in clinical trials.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Amperometric Sensing of Hydrogen Peroxide Using Ag Nanowire Array Electrode

2015

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A green atom‐economical method for the synthesis of biaryl sulfonamide derivatives via palladium(II)‐catalyzed CH bond activation by employing an amino acid moiety as the bidentate directing group has been developed. The protocol proceeded efficiently in water; high yields and broad substrate scope were achieved. The reaction shows good functional group compatibility and proceeds in a highly selective manner at the ortho position of arenes connected to sulfonamide sulfur atoms. This auxiliary can be easily removed either by acidic hydrolysis, or converted into primary biaryl sulfomamides with a 30 mol % amount of CuO as catalyst. Mechanistic studies show that the present bidentate directing group is essential for promoting ortho CH bond activation of arenes connected to sulfonamide sulfur atoms.

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Section: Introductionmentioning

confidence: 99%

Sensitive Amperometric Sensing of Hydrogen Peroxide Using Ag Nanowire Array Electrode

2015

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“…Electrochemical sensor has been extensively employed in the field of clinical diagnosis and environmental monitoring for biochemical analysis owing to its simple operation and low cost [11][12][13][14][15].Electrode is the core component of electrochemical sensors. Nowadays, the commercial micro electrode is usually using screen printing procedure, which is able to deposit cost-effectively and suitable for massproduction.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a 3D interdigitated double-coil microelectrode chip by MEMS technique

et al. 2012

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We have fabricated an interdigitated double-coil microelectrode chip for the determination of traces of phosphate by making use of a MEMS technique and enzyme immobilization technology. The chip is composed of two 3-dimensional strip microelectrodes which form a double coil microelectrode configuration with steep sidewalls and high aspect ratio. This novel configuration results in a high current response during amplification by redox cycling. The enzyme pyruvate oxidase was immobilized on the chip using gold nanoparticles as a support. Phosphate can be determined by using this chip with good sensitivity and linearity and in concentrations ranging from 0.5 μM to 7 μM.

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“…Electrochemistry technique based on a simple and low cost enzyme electrode has been extensively employed for accurate determination of H 2 O 2 because of the intrinsic selectivity and sensitivity of enzymatic reactions [30,31]. Although, a lot of materials have been used to immobilize enzyme on an electrode for retaining the enzymatic biologic activity and electrically connecting the enzyme with the electrode surface, it was ineluctable that these materials might block the electron transfer and biologic activity of the enzyme [32,33] Recent studies have showed that Ag NPs exhibited catalytic activity for H 2 O 2 [34,35]. In the present study, we prepared silver nanograins incorporated PEDOT modified electrode by electrochemically without using any reducing agent or stabilizer.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanograins Incorporated PEDOT Modified Electrode for Electrocatalytic Sensing of Hydrogen Peroxide

Balamurugan

Chen

2009

Electroanalysis

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A silver nanograins (Ag NGs ) incorporated poly [3,4-ethylenedioxythiophene] (PEDOT) modified electrode was prepared by a simple electrochemical method without using any stabilizer or reducing agent. The surface morphology and thickness of the resulting modified electrode was characterized by using AFM. It was found that the size of the silver particles in the PEDOT modified electrode was smaller than that in the bare electrode. AFM studies also revealed that Ag NGs were uniformly distributed in the PEDOT modified electrode and the thickness of the film was found to be 35 nm. The Ag NGs incorporated PEDOT modified electrode exhibited good electrocatalytic activity towards the reduction of hydrogen peroxide without an enzyme or mediator immobilized in the electrode. It has shown good amperometric response to hydrogen peroxide (H 2 O 2 ) with a detection limit of 7 mM and a response time of 5 s.

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A novel hydrogen peroxide sensor based on Ag nanoparticles electrodeposited on DNA-networks modified glassy carbon electrode

Cited by 208 publications

References 26 publications

Sensitive Amperometric Sensing of Hydrogen Peroxide Using Ag Nanowire Array Electrode

Sensitive Amperometric Sensing of Hydrogen Peroxide Using Ag Nanowire Array Electrode

Fabrication of a 3D interdigitated double-coil microelectrode chip by MEMS technique

Silver Nanograins Incorporated PEDOT Modified Electrode for Electrocatalytic Sensing of Hydrogen Peroxide

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