Non-enzymatic Glucose Sensor Based on Palladium Coated Nanoporous Gold Film Electrode

Tavakkoli, Nahid; Nasrollahi, Shekofe

doi:10.1071/ch13238

Cited by 17 publications

(7 citation statements)

References 41 publications

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“…Since the selective etching of Ni and P can take place above 0.80 V in all the Pd Ni 80− P 20 glasses, 0.80 V is chosen as the standard dealloying potential to form NPMs. As is shown in Figure 2, the dealloying process of three glasses is mainly composed of two current stages, similar to that of dealloying solid solutions and intermetallic metals: steady stage and decay stage [11]. The steady stage increases obviously with increasing Pd content in the metallic glasses, which may be attributed to the different overpotential used in dealloying the glasses.…”

Section: Resultsmentioning

confidence: 82%

Enzyme-Free Electrochemical Glucose Sensors Prepared by Dealloying Pd-Ni-P Metallic Glasses

Zeng

Hua

Yang

et al. 2014

Advances in Materials Science and Engineering

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We report the formation of enzyme-free electrochemical glucose sensors by electrochemical dealloying palladium-containing Pd-Ni-P metallic glasses. When metallic glasses with different Pd contents are used as the dealloying precursor alloys, palladium-based nanoporous metals with different ligament and pore sizes can be obtained. The chemical compositions of the nanoporous metals also vary according to the different precursor compositions. All the as-obtained nanoporous metals exhibit electrochemical catalytic activity towards the oxidation of d-glucose, indicating that the nanoporous metals prepared by dealloying the Pd-Ni-P metallic glasses are promising materials for enzyme-free electrochemical glucose sensor.

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Section: Resultsmentioning

confidence: 82%

Enzyme-Free Electrochemical Glucose Sensors Prepared by Dealloying Pd-Ni-P Metallic Glasses

Zeng

Hua

Yang

et al. 2014

Advances in Materials Science and Engineering

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“…Another common and simple approach to prepare a high-surface-area NPG surface is anodization. This method is also conducive to the formation of NPG microelectrodes [ 90 ], and has commonly been performed using gold recordable compact disks cut into small pieces [ 91 , 92 , 93 ]. Different variants of this approach have been described in the literature.…”

Section: Fabricationmentioning

confidence: 99%

Recent Advances in Bimetallic Nanoporous Gold Electrodes for Electrochemical Sensing

Islam,

Banik,

Collinson

2023

Nanomaterials

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Bimetallic nanocomposites and nanoparticles have received tremendous interest recently because they often exhibit better properties than single-component materials. Improved electron transfer rates and the synergistic interactions between individual metals are two of the most beneficial attributes of these materials. In this review, we focus on bimetallic nanoporous gold (NPG) because of its importance in the field of electrochemical sensing coupled with the ease with which it can be made. NPG is a particularly important scaffold because of its unique properties, including biofouling resistance and ease of modification. In this review, several different methods to synthesize NPG, along with varying modification approaches are described. These include the use of ternary alloys, immersion–reduction (chemical, electrochemical, hybrid), co-electrodeposition–annealing, and under-potential deposition coupled with surface-limited redox replacement of NPG with different metal nanoparticles (e.g., Pt, Cu, Pd, Ni, Co, Fe, etc.). The review also describes the importance of fully characterizing these bimetallic nanocomposites and critically analyzing their structure, surface morphology, surface composition, and application in electrochemical sensing of chemical and biochemical species. The authors attempt to highlight the most recent and advanced techniques for designing non-enzymatic bimetallic electrochemical nanosensors. The review opens up a window for readers to obtain detailed knowledge about the formation and structure of bimetallic electrodes and their applications in electrochemical sensing.

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“…The sensitivity and selectivity of np-Au-based glucose sensor can also be enhanced by modifying it with different metals (e.g., Ni, Cu, Pt, Ru, and Pd) [ 129 , 130 , 131 , 132 , 133 ] metal oxides (e.g., CuO, Ni(OH) 2 and Co 3 O 4 ) [ 134 , 135 , 136 ] and alloys (e.g., PtCo) [ 137 ]. As-modified np-Au can also be used for the detection of varieties of other analytes, such as L-cysteine, by molecularly imprinted polymer and Cu NPs that are immobilized on np-Au [ 38 ], hydrogen peroxide and hydrazine by np-Au prepared on Ni foam [ 138 ], and Cr(VI) by depositing Ag NPs on np-Au [ 139 ].…”

Section: Electrochemical Biosensingmentioning

confidence: 99%

Preparation, Modification, Characterization, and Biosensing Application of Nanoporous Gold Using Electrochemical Techniques

et al. 2018

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Nanoporous gold (np-Au), because of its high surface area-to-volume ratio, excellent conductivity, chemical inertness, physical stability, biocompatibility, easily tunable pores, and plasmonic properties, has attracted much interested in the field of nanotechnology. It has promising applications in the fields of catalysis, bio/chemical sensing, drug delivery, biomolecules separation and purification, fuel cell development, surface-chemistry-driven actuation, and supercapacitor design. Many chemical and electrochemical procedures are known for the preparation of np-Au. Recently, researchers are focusing on easier and controlled ways to tune the pores and ligaments size of np-Au for its use in different applications. Electrochemical methods have good control over fine-tuning pore and ligament sizes. The np-Au electrodes that are prepared using electrochemical techniques are robust and are easier to handle for their use in electrochemical biosensing. Here, we review different electrochemical strategies for the preparation, post-modification, and characterization of np-Au along with the synergistic use of both electrochemistry and np-Au for applications in biosensing.

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Non-enzymatic Glucose Sensor Based on Palladium Coated Nanoporous Gold Film Electrode

Cited by 17 publications

References 41 publications

Enzyme-Free Electrochemical Glucose Sensors Prepared by Dealloying Pd-Ni-P Metallic Glasses

Enzyme-Free Electrochemical Glucose Sensors Prepared by Dealloying Pd-Ni-P Metallic Glasses

Recent Advances in Bimetallic Nanoporous Gold Electrodes for Electrochemical Sensing

Preparation, Modification, Characterization, and Biosensing Application of Nanoporous Gold Using Electrochemical Techniques

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