Chemically Modified Carbon Paste Electrode for Determination of Sulfate Ion by Potentiometric Method

Soleymanpour, Ahmad; Asl, Ezzat Hamidi; Nasseri, Mohmmad Ali

doi:10.1002/elan.200503562

Cited by 28 publications

(11 citation statements)

References 57 publications

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“…The present study aims to elucidate the electrochemical behavior of CB as an electroactive label for genosensor. To achieve this goal, carbon paste electrode (CPE) was employed as a low cost, easy preparation and renewable electrode [31]. Cyclic and differential pulse voltammetry was used as electrochemical method and the effect of some experimental factors was investigated.…”

Section: Introductionmentioning

confidence: 99%

Celestine blue as a new indicator in electrochemical DNA biosensors

et al. 2015

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Celestine blue (CB) was introduced as a new electroactive indicator in DNA biosensors. The interaction of CB with DNA was investigated by electrochemical and spectroscopic methods. The effect of buffer kind and pH on the electrochemical behavior of CB was studied. The peak currents of CB were linearly related to DNA concentration in the range of 5.0×10 −9 to 1.0×10 −7 mol/L. The detection limit of this approach was 4.76×10 −10 mol/L. Based on spectrometry data a hypochromic effect was observed in UV-Vis spectra of CB with increasing DNA concentration. The results illustrate the possible interaction mode between CB and DNA is electrostatic binding. celestine blue, differential pulse voltammetry, DNA biosensor, electroactive indicator

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Section: Introductionmentioning

confidence: 99%

Celestine blue as a new indicator in electrochemical DNA biosensors

et al. 2015

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“…Various modifications of carbon paste were applied in potentiometric sensors for copper [286][287][288][289][290][291][292], silver [97, 153,293], mercury [94-296], lead [297], arsenic [97,298], antimony [299], bismuth [300], cobalt [301], osmium [302], aluminium [107], lithium [303], ammonium [304], halides and pseudo-halides [305][306][307][308], and sulphate ions [309]. Some of them [97,302] were applied to monitor titrations based on ion-pair formation principles described and discussed in detail previously [310].…”

Section: Carbon Paste-based Ion-selective Electrodes (Cp-ises)mentioning

confidence: 99%

Carbon paste electrodes in the new millennium

et al. 2009

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Abstract:In this review (with 500 refs), both electrochemistry and electroanalysis with carbon paste-based electrodes, sensors, and detectors are of interest, when attention is focused on the research activities in the years of new millennium. Concerned are all important aspects of the field, from fundamental investigations with carbon paste as the electrode material, via laboratory examination of the first electrode prototypes, basic and advanced studies of various electrode processes and other phenomena, up to practical applications to the determination of inorganic ions, complexes, and molecules. The latter is presented in a series of extensive tables, offering a nearly complete survey of methods published within the period of [2001][2002][2003][2004][2005][2006][2007][2008]. Finally, the latest trends and outstanding achievements are also outlined and future prospects given.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

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“…24 In this paper, we report a label free DNA hybridization biosensor for detection of DNA duplex structure using nano-gold modified carbon paste electrode (NGMCPE). To the best of our knowledge, there has been no report about incorporation of nano-gold particles into carbon paste electrode and its usage for direct detection of DNA hybridization.…”

Section: Introductionmentioning

confidence: 99%

Nano‐Gold Modified Genosensor for Direct Detection of DNA Hybridization

Mousavisani

Raoof

Ojani

et al. 2013

J Chinese Chemical Soc

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In this paper, nano-gold modified carbon paste electrode (NGMCPE) was employed to develop an electrochemical DNA hybridization biosensor. The proposed sensor was made up by immobilization of 15-mer single stranded oligonucleotide probe for detection of target DNA. Hybridization detection relies on the alternation in guanine oxidation signal following hybridization of the probe with complementary genomic DNA. The guanine oxidation was monitored using differential pulse voltammetry (DPV). Different factors such as activation potential, activation time and probe immobilization conditions were optimized. The selectivity of the sensor was investigated by non-complementary oligonucleotides. Diagnostic performance of the biosensor was described and the detection limit was found 1.9 × 10 -13 M at the NGMCPE surface. All of the investigations were performed in both CPE and NGMCPE and finally their results were compared.

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Chemically Modified Carbon Paste Electrode for Determination of Sulfate Ion by Potentiometric Method

Cited by 28 publications

References 57 publications

Celestine blue as a new indicator in electrochemical DNA biosensors

Celestine blue as a new indicator in electrochemical DNA biosensors

Carbon paste electrodes in the new millennium

Nano‐Gold Modified Genosensor for Direct Detection of DNA Hybridization

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