Synergistic oxidation of NADH on bimetallic CoPt nanoparticles decorated carbon nitride nanotubes

Devadoss, Anitha; Lee, Jung Woo; Terashima, Chiaki; Fujishima, Akira; Kim, Young‐Pil; Kang, Jeung Ku; Paik, Ungyu

doi:10.1016/j.snb.2014.11.013

Cited by 16 publications

(5 citation statements)

References 42 publications

(35 reference statements)

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“…The most significant characteristic is a very wide linear range (59-5800 μM, r = 0.998) compared with the other NADH sensors based on SWCNTs, as shown in Table 1. (10)(11)(12)(15)(16)(17)21,30,31) At high concentrations (>3 mM), no current saturation was observed, unlike in conventional NADH sensors. This is attributed to the effective electrochemical communication provided by the electronically homogeneous s-SWCNTs.…”

Section: Nadh Sensingmentioning

confidence: 92%

“…(11,17,30) The main issues with this approach are the use of a functional (inactive) matrix, such as hyaluronic acid, (11) PPF, (30) or polyaniline. (17) There have been other attempts to use carbon nanotubes that have been subjected to boron doping, (31) nitrogen doping, (32) boiling in water, (24) and acid microwave treatment; (24) however, these approaches are only available for multiwalled carbon nanotubes. Therefore, the proposed approach of using different electronic forms of SWCNTs is novel.…”

Section: Nadh Sensingmentioning

confidence: 99%

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Electrochemical Behavior and Analytical Applications of Electronically Type-Sorted Carbon Nanotube Electrode

2016

Sensors and Materials

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Keywords: electronically type-sorted single-walled carbon nanotube, plasma-polymerized film, electrochemical sensor, nicotinamide adenine dinucleotideThe electrochemical behavior and analytical applications of an electrode with electronically typesorted (metallic and semiconducting) single-walled carbon nanotubes (SWCNTs) were examined. The effect of the electronic type of SWCNTs on the electrochemical behavior of nicotinamide adenine dinucleotide (NADH) as a model agent was investigated. The electrode configuration contained SWCNTs sandwiched between 3-5-nm-thick acetonitrile plasma-polymerized thin films. Cyclic voltammetry measurements demonstrated that the current due to the NADH oxidation of the electrode with semiconducting SWCNTs was much larger than that for electrodes with only metallic or unsorted SWCNTs. Electrochemical impedance spectroscopy measurements and atomic force microscopy observations suggested that the electrode with semiconducting SWCNTs formed a better electron transfer network than the electrodes with metallic or unsorted SWCNTs. Chronocoulometry measurements indicated that there was no distinct difference between the diffusion coefficients of NADH with the metallic and semiconducting SWCNT electrodes. Therefore, it was concluded that the semiconducting SWCNT electrode is more suitable than the metallic and unsorted SWCNT electrodes for electrochemical oxidation in terms of catalysis and electron transport. The semiconducting SWCNT electrode exhibited excellent performance for the sensing application of NADH detection with a significantly wide linear range of 59-5800 μM compared with that for conventional NADH sensors. Other significant performance characteristics are a sensitivity of 176 μA mM −1 cm −2 (defined as the slope of the current vs concentration plot at +0.4 V), a detection limit of 1.1 μM [signal-to-noise ratio (S/N) = 3], and a response time of 6 s.

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Section: Nadh Sensingmentioning

confidence: 92%

Section: Nadh Sensingmentioning

confidence: 99%

Electrochemical Behavior and Analytical Applications of Electronically Type-Sorted Carbon Nanotube Electrode

2016

Sensors and Materials

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“…Thus, we leave outside the scope the nitrogen-doped carbon nanotubes typically produced by plasma-or synchrotronassisted chemical vapor deposition with iron catalysts. [67][68][69][70][71][72][73][74][75] Such NTs contain 2-3 at% of nitrogen and resemble pristine carbon NTs, for example by the growth mechanism and bamboo-like shape, show no semiconductor behavior or distinct light harvesting properties.…”

Section: Introductionmentioning

confidence: 99%

Graphitic carbon nitride nanotubes: a new material for emerging applications

2020

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“…Notably, Paik et al . decorated carbon nitride nanotubes (CNNTs) with CoPt nanoparticles (CoPt NPs) to directly oxidize NADH in PBS at 0.4 V. Further researches involving the redox mediator, 1,4‐benzoquinone (Q), exihibited a much lower oxidation peak at 0.05 V during the NADH detection process since the mediator‐involved process requires a lower activation energy than the direct oxidation process.…”

Section: Introductionmentioning

confidence: 99%

Indirect Electrochemical Detection of NADH Through an Active Stainless Steel Fiber Felt (SSFF) Electrode Decorated With the Amino‐Graphene/Nafion Nano Composite Films

Liu

et al. 2018

ChemistrySelect

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As the energy transfer mediator in the metabolism of human beings, dihydronicotinamide adenine dinucleotide (NADH) is considered as an important biomarker, the concentration of which is correlated to several lethal diseases, such as breast cancer and Parkinson's disease. Due to the high oxidation potential encountered for NADH direct oxidation, herein, we report an active electrode for indirect electrochemical detection of NADH at low potential with the inexpensive stainless steel fiber felt (SSFF). The SSFF electrodes were modified through the layer‐by‐layer assembling of amino‐graphene (AG) fragments and Nafion, and characterized by cyclic voltammetry (CV), differential pulse voltammetry (DPV), scanning electron microscope (SEM) and X‐ray photoelectron spectroscopy (XPS). Taking the peak current at the apparent oxidation potential (‐0.2 V) as the sensing signal, the proposed SSFF active electrode presented a stable logarithmic detection range from 100 nM to 300 μM with R2=0.996. The regeneration process was also explored and proved to be robust. Finally, the SSFF active electrode was applied to sense NADH in a bio‐mixture solution prepared from tumor cell lysate. The experimental results demonstrated that, with a facile processing, the corrosion resistant and low cost SSFF electrodes could serve as a reliable and practical probe for NADH detection, which would further benefit the clinical diagnostics of NADH‐related diseases.

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Synergistic oxidation of NADH on bimetallic CoPt nanoparticles decorated carbon nitride nanotubes

Cited by 16 publications

References 42 publications

Electrochemical Behavior and Analytical Applications of Electronically Type-Sorted Carbon Nanotube Electrode

Electrochemical Behavior and Analytical Applications of Electronically Type-Sorted Carbon Nanotube Electrode

Graphitic carbon nitride nanotubes: a new material for emerging applications

Indirect Electrochemical Detection of NADH Through an Active Stainless Steel Fiber Felt (SSFF) Electrode Decorated With the Amino‐Graphene/Nafion Nano Composite Films

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