Core–shell copper-gold nanoparticles modified at the boron-doped diamond electrode for oxygen sensors

Gunlazuardi, Jarnuzi; Kurniawan, Anghel Dennis; Jiwanti, Prastika Krisma; Einaga, Yasuaki; Ivandini, Tribidasari A.

doi:10.1039/d1ay01942b

Cited by 3 publications

(2 citation statements)

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“…Then, CF was immersed into a mixture solution of 30 mL 2.4 mM HAuCl 4 solution and 5 mL 1% sodium citrate solution in a 50 mL Teon-lined stainless steel. 30,31 The mixture containing CF was then placed in an autoclave and heated to 120 C for 6 h. Aer the reaction, CF was separated, rinsed with distilled water, and dried in the oven at 60 C.…”

Section: Electrode Preparationmentioning

confidence: 99%

Modification of carbon foam with 4-mercaptobenzoic acid functionalised gold nanoparticles for an application in a yeast-based microbial fuel cell

et al. 2022

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Section: Electrode Preparationmentioning

confidence: 99%

Modification of carbon foam with 4-mercaptobenzoic acid functionalised gold nanoparticles for an application in a yeast-based microbial fuel cell

et al. 2022

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“…This makes the synthesis of the CuAu core@shell nanoparticles quite complex and needs a reliable strategy. Recently, CuAu core@shell nanoparticles have been successfully produced both in wet-chemistry synthesis [15][16][17][18][19] and in gas phase growth exper-iments by cluster beam technique 20,21 . For example, in the study carried out by Wang et al, the Au@Cu nanorods with high shape anisotropy were successfully produced using seedmediated method through localized epitaxial mechanism of Cu shells on a single-crystalline Au seed 12 .…”

Section: Introductionmentioning

confidence: 99%

Growth pathways of exotic Cu@Au core@shell structures: the key role of misfit strain

Koraychy

Ferrando

2023

Nanoscale

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Development of an Acrylamide Biosensor Using Guanine and Adenine as Biomarkers at Boron-Doped Diamond Electrodes: Integrated Molecular Docking and Experimental Studies

Anggraini

Rahmawati

Nasution

et al. 2023

Bulletin of the Chemical Society of Japan

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An acrylamide biosensor was developed by utilizing purine bases, i.e. guanine and adenine, through computational and electrochemical approaches. The molecular docking simulation proved that interaction of double-stranded DNA with the purine bases has the lowest Gibbs binding free energy compared to other biomolecules with a ΔGbinding of −4.2759 kcal/mol. Meanwhile, cyclic voltammetry of both guanine and adenine in 0.1 M phosphate buffer solution at pH 7.4 using a boron-doped diamond electrode showed an irreversible oxidation peak in the potential range of 0 to +1.8 V (vs. Ag/AgCl), confirming that the oxidation reaction was irreversible. The current of these peaks decreased linearly with the concentration of acrylamide due to the adduct formation between the purine bases and acrylamide. The formation of acrylamide adducts between acrylamide and purine bases was confirmed by the shift of the peak wavelength of the UV spectrum from 260 to 257 nm. The use of guanine for acrylamide sensing showed a linear calibration curve in the concentration range of 0.20–1.00 µM (R2 = 0.99) with a limit of detection and limit of quantification attained at 0.11 and 0.36 µM, respectively. In the case of adenine, a linear calibration curve was observed in the concentration range of 0.14–1.00 µM (R2 = 0.99) with a limit of detection and limit of quantification of 0.10 and 0.34 µM, respectively. The developed method was successfully performed for the acrylamide determination in coffee samples and was validated by HPLC.

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Core–shell copper-gold nanoparticles modified at the boron-doped diamond electrode for oxygen sensors

Abstract: Bimetallic copper-gold (Cu@Au) nanoparticles were synthesized and utilised to modify boron-doped diamond (BDD) electrodes. Nanorod particles with diameter size of around 10 nm and length of around 20 nm were...

Cited by 3 publications

References 34 publications

Modification of carbon foam with 4-mercaptobenzoic acid functionalised gold nanoparticles for an application in a yeast-based microbial fuel cell

Modification of carbon foam with 4-mercaptobenzoic acid functionalised gold nanoparticles for an application in a yeast-based microbial fuel cell

Growth pathways of exotic Cu@Au core@shell structures: the key role of misfit strain

Development of an Acrylamide Biosensor Using Guanine and Adenine as Biomarkers at Boron-Doped Diamond Electrodes: Integrated Molecular Docking and Experimental Studies

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