A stable interface based on aryl diazonium salts/SWNTs modified gold electrodes for sensitive detection of hydrogen peroxide

Guo, Wenqi; Jiang, Fangfang; Chu, Jiemei; Song, Dandan; Liu, Guozhen

doi:10.1016/j.jelechem.2013.05.028

Cited by 16 publications

(6 citation statements)

References 44 publications

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“…127 To enhance the sensitivity and stability of the sensing interface, Liu group has explored the modification of different nanomaertials (e.g., AuNPs, carbon nanotubes, graphene oxides (GO), reduced graphene oxides (RGO), and the nanocomposites between GO and AuNPs) w i t h a r y l d i a z o n i u m s a l t s f o r s e n s i n g a p p l i c ations. 65,68,72,82,95,[101][102][103][104]114,116,128 The following sections will discuss the nanomaterials modified sensing interfaces using aryldiazonium salts as coupling agents in detail.…”

Section: Nanomaterial-based Bulky Interfaces For Sensingmentioning

confidence: 99%

“…103 Besides pesticides detection, we developed a stable interface based on aryldiazonium salts/SWNTs/PEG/HRP modified gold electrodes for detection of hydrogen peroxide. 95 In the study, PEG based diazonium salts were modified on the electrode instead of on SWNTs. It can be used for detection of H 2 O 2 in the range of 0.01−24 μM with a detection limit of 10 nM.…”

Section: Acs Applied Materials and Interfacesmentioning

confidence: 99%

“…To improve sensitivity with lower detection limits down to even a single-molecule level, nanomaterials are applied as promising candidates on sensing interfaces because of (1) the possibility to immobilize a remarkably enhanced quantity of receptor units at a reduced volume and (2) high conductivity which allows itself to act as a transduction element being able to significantly increase the electrical coupling between the analyte and the transducer . To enhance the sensitivity and stability of the sensing interface, Liu group has explored the modification of different nanomaertials (e.g., AuNPs, carbon nanotubes, graphene oxides (GO), reduced graphene oxides (RGO), and the nanocomposites between GO and AuNPs) with aryldiazonium salts for sensing applications. ,,,,,− ,,, The following sections will discuss the nanomaterials modified sensing interfaces using aryldiazonium salts as coupling agents in detail.…”

Section: Fabrication Of Interfaces With Aryldiazonium Salts For Sensingmentioning

confidence: 99%

“…This fabricated SWNTs-diazonium system was successfully applied for the detection of pesticide endosulfan and paraoxon, respectively. , Later on, we developed an electrochemical immunosensor using patterned carbon nanotubes modified substrates for simultaneous detection of these two pesticides . Besides pesticides detection, we developed a stable interface based on aryldiazonium salts/SWNTs/PEG/HRP modified gold electrodes for detection of hydrogen peroxide . In the study, PEG based diazonium salts were modified on the electrode instead of on SWNTs.…”

Section: Fabrication Of Interfaces With Aryldiazonium Salts For Sensingmentioning

confidence: 99%

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Advances on Aryldiazonium Salt Chemistry Based Interfacial Fabrication for Sensing Applications

Cao

Zhang

Jiang

et al. 2017

ACS Appl. Mater. Interfaces

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106

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Aryldiazonium salts as coupling agents for surface chemistry have evidenced their wide applications for the development of sensors. Combined with advances in nanomaterials, current trends in sensor science and a variety of particular advantages of aryldiazonium salt chemistry in sensing have driven the aryldiazonium salt-based sensing strategies to grow at an astonishing pace. This review focuses on the advances in the use of aryldiazonium salts for modifying interfaces in sensors and biosensors during the past decade. It will first summarize the current methods for modification of interfaces with aryldiazonium salts, and then discuss the sensing applications of aryldiazonium salts modified on different transducers (bulky solid electrodes, nanomaterials modified bulky solid electrodes, and nanoparticles). Finally, the challenges and perspectives that aryldiazonium salt chemistry is facing in sensing applications are critically discussed.

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Section: Nanomaterial-based Bulky Interfaces For Sensingmentioning

confidence: 99%

Section: Acs Applied Materials and Interfacesmentioning

confidence: 99%

Section: Fabrication Of Interfaces With Aryldiazonium Salts For Sensingmentioning

confidence: 99%

Section: Fabrication Of Interfaces With Aryldiazonium Salts For Sensingmentioning

confidence: 99%

See 2 more Smart Citations

Advances on Aryldiazonium Salt Chemistry Based Interfacial Fabrication for Sensing Applications

Cao

Zhang

Jiang

et al. 2017

ACS Appl. Mater. Interfaces

Self Cite

106

View full text Add to dashboard Cite

show abstract

“…Several methods such as titrimetry, 3 spectrometry, 4 chemiluminescence, 5 fluorimetry, 6 chromatography, 7 and electrochemical techniques [8][9][10] have been reported for this purpose. Among these techniques, electrochemical methods are preferable because of their simplicity, low cost, high sensitivity, and selectivity.…”

mentioning

confidence: 99%

Hydrogen Peroxide Biosensor based on the Immobilization of Horseradish Peroxidase onto a Gold Nanoparticles-Adsorbed Poly(brilliant cresyl blue) Film

Ahammad

Shaikh

Jessy

et al. 2014

J. Electrochem. Soc.

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An amperometric hydrogen peroxide (H 2 O 2 ) biosensor was developed based on the immobilization of horseradish peroxidase (HRP) onto gold nanoparticles (GNPs)-adsorbed conducting poly(brilliant cresyl blue) (PBCB) film. The modification process was characterized by field emission scanning electron microscope (FE-SEM) and electrochemical impedance spectroscopy (EIS). The effects of experimental parameters such as the concentration of the mediator (hydroquinone, HQ), pH of the solution, and the working potential were investigated for optimum analytical performance. In the presence of the mediator, the immobilized HRP showed an excellent electrocatalytic activity towards the reduction of H 2 O 2 . The linear dynamic range from 5 to 150 μM with the regression coefficient of 0.99 was obtained. The detection limit was calculated to be 0.5 μM based on a signal-to-noise ratio of 3. The reproducibility and stability of the biosensor were studied, with satisfactory results. The biosensor performance was evaluated with respect to possible interferences and the application to real sample analysis.

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Choice of Electrode Metal Influences the Chemoresistive Vapor Response of Brominated SWCNTs

Hines

Karunwi

Harrell

et al. 2015

Macromolecular Symposia

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A series of functionalized single walled carbon nanotubes (SWNTs) rationalized on the basis of covalent chemical modification to impart electrondonating or electron-withdrawing functionalities has been synthesized and characterized. Brominated SWNTs (SWNT-Br) were dispersed in dimethyl formamide (DMF) and cast onto the interdigit space of microlithographically fabricated interdigitated microsensor electrodes (IMEs) of gold (Au) or platinum (Pt) that were unmodified or chemically modified with octadecyltrichlorosilane (OTS). The resulting devices (receptors) were characterized by two-electrode impedance spectroscopy (EIS) with equivalent circuit modeling and by direct current (DC)-based current-voltage (IV) characterization in various gases/vapors. The chemoresistive responses to these same gases/vapors were determined under DC conditions by continuous monitoring following flow injection of gas/vapor. The EIS and I-V characterization produced similar results that averaged 40.7 AE 1.1 V at the Auelectrode devices and 73.9 AE 1.9 V at the Pt-electrode devices confirming that the choice of metal greatly influences the magnitude of DC and AC responses. Exposure to vapors via flow injection results in ethanol (EtOH) > methyl isoamyl ketone (MIAK) > octane > toluene and with higher relative and more reproducible responses at Au compared to Pt devices. Surface modification influences the reproducibility of both devices.

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A stable interface based on aryl diazonium salts/SWNTs modified gold electrodes for sensitive detection of hydrogen peroxide

Cited by 16 publications

References 44 publications

Advances on Aryldiazonium Salt Chemistry Based Interfacial Fabrication for Sensing Applications

Advances on Aryldiazonium Salt Chemistry Based Interfacial Fabrication for Sensing Applications

Hydrogen Peroxide Biosensor based on the Immobilization of Horseradish Peroxidase onto a Gold Nanoparticles-Adsorbed Poly(brilliant cresyl blue) Film

Choice of Electrode Metal Influences the Chemoresistive Vapor Response of Brominated SWCNTs

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