Electrodeposition of gold nanoparticles on indium/tin oxide electrode for fabrication of a disposable hydrogen peroxide biosensor

Gold Nanoparticles Electrodeposited on Ordered Mesoporous Carbon as an Enhanced Material for Nonenzymatic Hydrogen Peroxide Sensor

“…One of the most promising applications of OMC is its use as a support for metal nanoparticles in catalysis [10][11][12]. Recently, gold nanoparticles (GNPs) are most extensively studied because of their unique size dependent physical, optical and electronic properties, which were mainly applied to electrocatalysis and biosensor [14][15][16]. GNPs can be made by chemical synthesis [14], UV light, electron beam irradiation [17] or electrochemical methods [15,18] and so on.…”

“…Many techniques have been employed in the determination of H 2 O 2 , including spectrometry [19], fluorescence [20] chemiluminescence [21], and electrochemistry [14][15][16]22]. Among different techniques, the electrochemical methods [14][15][16][23][24][25][26][27][28] have been found to be suitable for rapid, accurate, and economical monitoring of hydrogen peroxide. For many electrochemistry sensors, the detection of H 2 O 2 was achieved at enzyme-based sensors [15,16,[23][24][25].…”

“…Among different techniques, the electrochemical methods [14][15][16][23][24][25][26][27][28] have been found to be suitable for rapid, accurate, and economical monitoring of hydrogen peroxide. For many electrochemistry sensors, the detection of H 2 O 2 was achieved at enzyme-based sensors [15,16,[23][24][25]. However, the common drawback associated with enzyme-based sensors is the lack of long-term stability, because enzymes are easy to denature thermally and chemically during fabrication, use or storage.…”

Properties of an Indium Tin Oxide Electrode Modified by a Laser Nanostructured Thin Au Film for Biosensing

“…[18] The application capability of transparent conductive oxide materials stimulate increased research activity in this area and the growing commercial scale production observed recently. [19] According to Wang et al, [20] the electrode modification due to the presence of the Au nanoparticles leads to enhancement of the electrode conductivity and electron transfer facilitation that is desired for biosensor performance. Interestingly, the electrode design that uses the Au NPs makes the cost effective, non-enzymatic detection of organic molecules such as glucose possible, in contrast to the application of enzyme-based sensors that are relatively expensive and require special environmental conditions because of their instability.…”

Gold Nanoparticle‐electrodeposited Electrodes Used for p‐Nitrophenol Detection in Acidic Media: Effect of Electrodeposition Parameters on Particle Density, Size Distribution, and Electrode Performance

“…16 Reversely, electrodeposition of AuNPs was rarely achieved by potential-sweeping electrodeposition and the influence of electrodeposition parameters on particle density and size distribution was not investigated. 17 AuNP-modified electrodes usually exhibit a unique electrocatalytic behavior or high sensitivity. Surprisingly, no AuNP-modified electrode has been used for the detection of p-NP or its isomers except that the gold nanoporous electrode prepared by simple dealloying process was recently employed to detect p-NP.…”