The effect of surface treatment on oxidation of oxalic acid at nanocrystalline diamond films

Azevedo, A.F.; Braga, N.A.; Souza, Fernando A.; Matsushima, Jorge Tadao; Baldan, Maurício Ribeiro; Ferreira, N.G.

doi:10.1016/j.diamond.2010.01.006

Cited by 22 publications

(17 citation statements)

References 15 publications

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“…The detection of a specific DNA nucleotide is strongly influenced by the presence of different functional groups on the BDD electrode surface [34,35].…”

Section: Introductionmentioning

confidence: 99%

Poly-l-lysine-modified boron-doped diamond electrodes for the amperometric detection of nucleic acid bases

Niedziałkowski

Ossowski

Zięba

et al. 2015

Journal of Electroanalytical Chemistry

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“…The detection of a specific DNA nucleotide is strongly influenced by the presence of different functional groups on the BDD electrode surface [34,35].…”

Section: Introductionmentioning

confidence: 99%

Poly-l-lysine-modified boron-doped diamond electrodes for the amperometric detection of nucleic acid bases

Niedziałkowski

Ossowski

Zięba

et al. 2015

Journal of Electroanalytical Chemistry

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“…The detection of a specific analyte can be strongly influenced by the different function groups on the BDD electrode surface. 27,28 Considering the above mentioned, the aim of this work is to present the detection of the DNA nucleotides on the BDD electrodes pretreated cathodically (Red) and anodically (Oxi) using the square wave voltammetry (SWV).…”

Section: Introductionmentioning

confidence: 99%

Detection of DNA nucleotides on pretreated boron doped diamond electrodes

Garbellini¹,

Uliana²,

Yamanaka³

2011

J. Braz. Chem. Soc.

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A detecção individual e em mistura equimolar dos nucleotídeos de DNA guanosina (GMP), adenosina (AMP), timidina (TMP) e citidina (CMP) 5'-monofosfato, utilizando a voltametria de onda quadrada, foi realizada sobre o eletrodo de diamante dopado com boro (DDB) prétratado catodicamente (Red-DDB) e anodicamente (Oxi-DDB). A oxidação dos nucleotídeos individuais de DNA foi mais sensível sobre o Oxi-DDB. Na detecção simultânea de nucleotídeos, as respostas de GMP, AMP, TMP e CMP foram muito adequadas sobre ambos os eletrodos tratados. Particularmente, picos mais sensíveis e mais separados para TMP e CMP sobre o Oxi-DDB e Red-DDB, respectivamente, foram observados após procedimento de deconvolução. A detecção dos nucleotídeos em soluções aquosas certamente contribuirá para avaliação genotóxica de substâncias e em reações de hibridização por meio da imobilização de ss ou ds-DNA sobre a superfície do DDB.The individual detection and equimolar mixture of DNA nucleotides guanosine monophosphate (GMP), adenosine monophosphate (AMP), thymidine (TMP) and cytidine (CMP) 5'-monophosphate using square wave voltammetry was performed on boron doped diamond (BDD) electrodes cathodically (Red-DDB) and anodically (Oxi-DDB) pretreated. The oxidation of individual DNA nucleotides was more sensitive on Oxi-BDD electrode. In a simultaneous detection of nucleotides, the responses of GMP, AMP, TMP and CMP were very adequate on both treated electrodes. Particularly, more sensitive and separate peaks for TMP and CMP on Oxi-BDD and Red-BDD electrodes, respectively, were observed after deconvolution procedure. The detection of nucleotides in aqueous solutions will certainly contribute for genotoxic evaluation of substances and hybridization reactions by immobilizing ss or ds-DNA on BDD surface.

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“…However, to our best of knowledge, there are no reports of phenol detection at BDND electrodes using SWV measurements. In this context, this work is an extension of our previous efforts, where the detection of oxalic acid was obtained using BDND electrodes with different pre-treatments from the SWV technique [8]. Therefore, the goal of this work is to analyze the influence of morphological and structural changes of BDND films on the electrochemical behavior and phenol electro-oxidation process associated to Ion Chromatography technique to validate these electrodes.…”

Section: Introductionmentioning

confidence: 98%

“…Considering the electrochemical characteristics of sensors based on BDND, several studies have reported promising results for these electrodes like a fast response, low detection limit, high stability and excellent response accuracy [6][7][8]. The sensors have been classified according to multiple criteria [2].…”

Section: Introductionmentioning

confidence: 99%

Detection of phenol at boron-doped nanocrystalline diamond electrodes

Azevedo¹,

Souza²,

Matsushima³

et al. 2011

Journal of Electroanalytical Chemistry

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a b s t r a c tThe phenol quantification using boron-doped nanocrystalline diamond (BDND) from electroanalytical technique of square wave voltammetry (SWV) is reported. BDND depositions were performed using Hot Filament Chemical Vapor Deposition reactor, where it was possible to grow films with statics substrate-holder (sample S1) or with spinning substrate-holder (sample S2). The variation of this growth parameter induced significant changes on the electrode properties. For example, the electrode S2 presented smoothness surface with low roughness in relation to that for electrode S1. Besides, Raman spectra showed different features for both electrodes that could be related to boron incorporation. Electrochemical measurements also presented differences between electrodes, showing the advantages of electrode S2, such as, rapid charge transfer, large electrochemical area and excellent phenol detection limit $0.1 mg L À1 . The phenol standard sample of 8.0 mg L À1 was used to validate the application of this electrode as a nanosensor. Its concentration calculated from SWV using electrode S2 was 8.2 ± 0.2 mg L À1 while from Ion Chromatograph it was 7.9 ± 0.1 mg L À1 . These results demonstrated the high potential of BDND electrodes for electroanalytical applications.

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The effect of surface treatment on oxidation of oxalic acid at nanocrystalline diamond films

Cited by 22 publications

References 15 publications

Poly-l-lysine-modified boron-doped diamond electrodes for the amperometric detection of nucleic acid bases

Poly-l-lysine-modified boron-doped diamond electrodes for the amperometric detection of nucleic acid bases

Detection of DNA nucleotides on pretreated boron doped diamond electrodes

Detection of phenol at boron-doped nanocrystalline diamond electrodes

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