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Suprun EV, Karpova EV, Khmeleva SA, Radko SP, Karyakin AA. Advanced electrochemical detection of nitrogenous bases, synthetic oligonucleotides, and single-stranded DNA through flow injection analysis and catalytic oxidation on Prussian Blue. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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2
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Lourenço AS, Nascimento RF, Silva AC, Ribeiro WF, Araujo MC, Oliveira SC, Nascimento VB. Voltammetric determination of tartaric acid in wines by electrocatalytic oxidation on a cobalt(II)-phthalocyanine-modified electrode associated with multiway calibration. Anal Chim Acta 2018; 1008:29-37. [DOI: 10.1016/j.aca.2018.01.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 12/28/2017] [Accepted: 01/11/2018] [Indexed: 11/15/2022]
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3
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Sharma H, Singh N, Jang DO. A benzimidazole/benzothiazole-based electrochemical chemosensor for nanomolar detection of guanine. RSC Adv 2015. [DOI: 10.1039/c4ra12892c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The electrochemical detection of guanine was accomplished using benzimidazole/benzothiazole-based imine-linked Co(iii) complexes with platinum electrodes.
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Affiliation(s)
- Hemant Sharma
- Department of Chemistry
- Indian Institute of Technology Ropar (IIT Ropar)
- Rupnagar
- India
| | - Narinder Singh
- Department of Chemistry
- Indian Institute of Technology Ropar (IIT Ropar)
- Rupnagar
- India
| | - Doo Ok Jang
- Department of Chemistry
- Yonsei University
- Wonju 220-710
- Republic of Korea
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Raj V, Silambarasan J, Rajakumar P. Application of cobalt oxide nanostructured modified aluminium electrode for electrocatalytic oxidation of guanine and single-strand DNA. RSC Adv 2014. [DOI: 10.1039/c4ra02490g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The electrocatalytic oxidation of guanine in ssDNA at cobalt oxide nanoflower-modified aluminium electrode.
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Affiliation(s)
- Vairamuthu Raj
- Advanced Materials Research Laboratory
- Department of Chemistry
- Periyar University
- Salem-636 011, India
| | | | - Panchanathan Rajakumar
- Advanced Materials Research Laboratory
- Department of Chemistry
- Periyar University
- Salem-636 011, India
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Barman K, Jasimuddin S. Electrochemical detection of adenine and guanine using a self-assembled copper(ii)–thiophenyl-azo-imidazole complex monolayer modified gold electrode. RSC Adv 2014. [DOI: 10.1039/c4ra08568j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A self-assembled copper(ii)–thiophenyl-azo-imidazole complex monolayer modified gold electrode exhibits an excellent electrochemical sensing ability towards adenine and guanine at physiological pH.
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Affiliation(s)
| | - Sk Jasimuddin
- Department of Chemistry
- Assam University
- Silchar, India
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6
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Kato D, Sumimoto M, Ueda A, Hirono S, Niwa O. Evaluation of Electrokinetic Parameters for All DNA Bases with Sputter Deposited Nanocarbon Film Electrode. Anal Chem 2012; 84:10607-13. [DOI: 10.1021/ac301964e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dai Kato
- National Institute of Advanced Industrial Science and Technology, 1-1-1
Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Michinori Sumimoto
- Division of Materials Science
and Engineering, Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611,
Japan
| | - Akio Ueda
- National Institute of Advanced Industrial Science and Technology, 1-1-1
Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Shigeru Hirono
- National Institute of Advanced Industrial Science and Technology, 1-1-1
Higashi, Tsukuba, Ibaraki 305-8566, Japan
- MES-Afty Corporation, 2-35-2 Hyoe, Hachioji, Tokyo 192-0918,
Japan
| | - Osamu Niwa
- National Institute of Advanced Industrial Science and Technology, 1-1-1
Higashi, Tsukuba, Ibaraki 305-8566, Japan
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7
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Shahrokhian S, Rastgar S, Amini M, Adeli M. Fabrication of a modified electrode based on Fe3O4NPs/MWCNT nanocomposite: Application to simultaneous determination of guanine and adenine in DNA. Bioelectrochemistry 2012; 86:78-86. [DOI: 10.1016/j.bioelechem.2012.02.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Revised: 02/05/2012] [Accepted: 02/11/2012] [Indexed: 10/28/2022]
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8
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A highly sensitive method for determination of guanine, adenine and epinephrine using poly-melamine film modified glassy carbon electrode. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.04.026] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Ghoreishi SM, Behpour M, Jafari N, Golestaneh M. Electrochemical Determination of Tyrosine in the Presence of Dopamine and Uric Acid at the Surface of Gold Nanoparticles Modified Carbon Paste Electrode. J CHIN CHEM SOC-TAIP 2012. [DOI: 10.1002/jccs.201100654] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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References. Anal Chem 2012. [DOI: 10.1201/b11478-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Jeevagan AJ, John SA. Electrochemical sensor for guanine using a self-assembled monolayer of 1,8,15,22-tetraaminophthalocyanatonickel(II) on glassy carbon electrode. Anal Biochem 2012; 424:21-6. [PMID: 22330605 DOI: 10.1016/j.ab.2012.02.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Revised: 02/01/2012] [Accepted: 02/02/2012] [Indexed: 10/14/2022]
Abstract
This article describes the selective determination of guanine (G) using the self-assembled monolayer (SAM) of 1,8,15,22-tetraaminophthalocyanatonickel(II) (4α-Ni(II)TAPc) modified glassy carbon electrode (GCE) in 0.2 M acetate buffer solution (pH 4.0). The SAM of 4α-Ni(II)TAPc was formed on GCE by spontaneous adsorption of 1 mM 4α-Ni(II)TAPc in dimethylformamide (DMF). It shows two pairs of redox waves corresponding to Ni(III)/Ni(II) and Ni(III)Pc(-1)/Ni(III)Pc(-2) in 0.2 M acetate buffer solution. The SAM modified electrode exhibits excellent electrocatalytic activity toward the oxidation of G by enhancing its oxidation current with 150 mV less positive potential shift in contrast to bare GCE. Furthermore, the SAM modified electrode selectively determines G in the presence of high concentration of adenine (A). In differential pulse voltammetry measurements, the oxidation current response of G was increased linearly in the concentration range of 10 to 100 μM, and a detection limit was found to be 3×10(-8)M (signal/noise=3).
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Affiliation(s)
- A John Jeevagan
- Department of Chemistry, Gandhigram Rural Institute, Gandhigram, Dindigul 624 302, India
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12
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CeO2 nanoparticles decorated multi-walled carbon nanotubes for electrochemical determination of guanine and adenine. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.07.048] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Electrocatalytic voltammetric determination of guanine at a cobalt phthalocyanine modified carbon nanotubes paste electrode. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2011.02.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Wang Q, Zheng M, Shi J, Gao F, Gao F. Electrochemical Oxidation of Native Double-Stranded DNA on a Graphene-Modified Glassy Carbon Electrode. ELECTROANAL 2011. [DOI: 10.1002/elan.201000713] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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Nanoparticle-functionalized nucleic acids: A strategy for amplified electrochemical detection of some single-base mismatches. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.12.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Simultaneous determination of adenine and guanine utilizing PbO2-carbon nanotubes-ionic liquid composite film modified glassy carbon electrode. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2010.11.026] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Mehrgardi MA, Daneshtalab R. Electrochemical detection of different types of single-base mismatches in DNA using copper-phthalocyanine tetrasulfonic acid. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2010.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Mazloum-Ardakani M, Beitollahi H, Taleat Z, Naeimi H, Taghavinia N. Selective voltammetric determination of d-penicillamine in the presence of tryptophan at a modified carbon paste electrode incorporating TiO2 nanoparticles and quinizarine. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2010.02.034] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Mehrgardi MA, Barfidokht A. Electrocatalytic activity of thianthrene toward one-electron oxidation of guanosine and DNA in a non-aqueous medium. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2010.03.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Construction of Electrochemical Sensor Based on Praseodymium Hexacyanoferrate Modified Graphite Electrode and Its Application for Cysteine Determination. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.3724/sp.j.1096.2010.00229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Novel carboxylation treatment and characterization of multiwalled carbon nanotubes for simultaneous sensitive determination of adenine and guanine in DNA. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0307-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Label-free electrochemical detection of Avian Influenza Virus genotype utilizing multi-walled carbon nanotubes–cobalt phthalocyanine–PAMAM nanocomposite modified glassy carbon electrode. Electrochem commun 2009. [DOI: 10.1016/j.elecom.2009.05.055] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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23
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Yin HS, Zhou YL, Ai SY. Preparation and characteristic of cobalt phthalocyanine modified carbon paste electrode for bisphenol A detection. J Electroanal Chem (Lausanne) 2009. [DOI: 10.1016/j.jelechem.2008.11.004] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Abdullin TI, Nikitina II, Bondar’ OV. Adsorption and oxidation of purine bases and their derivatives on electrodes modified with carbon nanotubes. RUSS J ELECTROCHEM+ 2009. [DOI: 10.1134/s1023193508120069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Mazloum Ardakani M, Taleat Z, Beitollahi H, Salavati-Niasari M, Mirjalili B, Taghavinia N. Electrocatalytic oxidation and nanomolar determination of guanine at the surface of a molybdenum (VI) complex–TiO2 nanoparticle modified carbon paste electrode. J Electroanal Chem (Lausanne) 2008. [DOI: 10.1016/j.jelechem.2008.07.027] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Zhang X, Jiao K, Wang X. Paste Electrode Based on Short Single-Walled Carbon Nanotubes and Room Temperature Ionic Liquid: Preparation, Characterization and Application in DNA Detection. ELECTROANAL 2008. [DOI: 10.1002/elan.200704190] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Abbaspour A, Noori A. Electrochemical studies on the oxidation of guanine and adenine at cyclodextrin modified electrodes. Analyst 2008; 133:1664-72. [DOI: 10.1039/b806920d] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Sensitive voltammetric determination of 2-mercaptobenzimidazole at electropolymerized nickel and copper tetraaminophthalocyanine membrane modified electrode. J Solid State Electrochem 2007. [DOI: 10.1007/s10008-007-0462-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Electrochemical Sensor for Tryptophan Determination Based on Copper-cobalt Hexacyanoferrate Film Modified Graphite Electrode. SENSORS 2007; 7:2446-2457. [PMID: 28903237 PMCID: PMC3864532 DOI: 10.3390/s7102446] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2007] [Accepted: 10/15/2007] [Indexed: 11/30/2022]
Abstract
In this work, the development of a tryptophan sensor and its application to milk are described. The mixed metal (copper and cobalt) hexacynoferrates are electrodeposited on the graphite electrode, and this film exhibits an electrocatalytic activity towards for the oxidation of tryptophan. The experimental conditions, including the scan cycles, the ratio of copper(II) and cobalt(II), pH value, applied potential, are investigated in detail. At the optimal conditions, the eletctrocatalytic response is a linear relationship with the concentration of tryptophan in the range of 10 μM and 900 μM, with a detection limit of about 6 μM. This modified electrode was also successfully used to detect the tryptophan concentration in milk.
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Chu HW, Thangamuthu R, Chen SM. Zinc Oxide/Zinc Hexacyanoferrate Hybrid Film-Modified Electrodes for Guanine Detection. ELECTROANAL 2007. [DOI: 10.1002/elan.200703966] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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31
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Paixão TRLC, Garcia CCM, Medeiros MHG, Bertotti M. Flow Injection Amperometric Detection of 2‘-Deoxyguanosine at a Ruthenium Oxide Hexacyanoferrate Modified Electrode. Anal Chem 2007; 79:5392-8. [PMID: 17552494 DOI: 10.1021/ac070490e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A ruthenium oxide hexacyanoferrate (RuOHCF) modified electrode was developed. Hydrodynamic voltammetry was employed to demonstrate the remarkable electrocatalytic activity toward the oxidation of 2'-deoxyguanosine. The RuOHCF modified electrode was used as amperometric detector for 2'-deoxyguanosine determination in a FIA apparatus. The influence of various experimental conditions was explored for optimum analytical performance, and at these experimental conditions, the method exhibited a linear response range to 2'-deoxyguanosine extending from 3.8 to 252 micromol L(-1) with detection limit of 94 nmol L(-1). Applications in DNA samples were examined, and the results for determination of 2'-deoxyguanosine were in good agreement with those obtained by HPLC analysis. Studies on the kinetics of the in vitro consumption of 2'-deoxyguanosine by acetaldehyde were also performed.
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Honeychurch KC, O'Donovan MR, Hart JP. Voltammetric behaviour of DNA bases at a screen-printed carbon electrode and its application to a simple and rapid voltammetric method for the determination of oxidative damage in double stranded DNA. Biosens Bioelectron 2007; 22:2057-64. [PMID: 17055244 DOI: 10.1016/j.bios.2006.09.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2006] [Revised: 09/04/2006] [Accepted: 09/07/2006] [Indexed: 10/24/2022]
Abstract
Screen-printed carbon electrodes (SPCEs) have been investigated as possible sensors to identify gamma-irradiation induced oxidative damage in double stranded (ds) DNA. Studies were undertaken to explore the possibility of using both cyclic voltammetry and differential pulse voltammetry to identify changes due to oxidative damage. Initially, guanine, adenine and 8-oxoguanosine were examined and it was found possible to differentiate them from their voltammetric responses. The voltammetric response of 8-oxoguanosine was found to be linear over the concentration range 1-400 microM, with a slope of 0.0296 microA microM(-1) (R2 value of 0.9984), in the presence of 2mM concentrations of guanine and adenine. Investigations were made into harnessing these findings to identify oxidative damage in gamma-irradiated dsDNA. The presence of oxidative damage in these samples was readily identifiable, and the magnitude of the voltammetric response was found to be dose dependant (R2=0.9919). A simple sample preparation step involving only the dissolution of double stranded DNA sample in the optimised electrolyte (0.1M acetate buffer pH 4.5) was required. This report appears to be first describing the use of a SPCE to detect DNA damage which can be related to the dose of gamma-radiation used.
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Affiliation(s)
- Kevin C Honeychurch
- Centre for Research in Analytical, Materials and Sensors Science, Faculty of Applied Sciences, University of the West of England, Bristol, Frenchay Campus, Coldharbour Lane, Bristol BS16 1QY, UK
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Abbaspour A, Baramakeh L, Nabavizadeh SM. Development of a disposable sensor for electrocatalytic detection of guanine and ss-DNA using a modified sol–gel screen-printed carbon electrode. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2007.01.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Electrocatalytic properties of guanine, adenine, guanosine-5'-monophosphate, and ssDNA by Fe(II) bis(2,2':6',2''-terpyridine), Fe(II) tris(1,10-phenanthroline), and poly-Fe(II) tris(5-amino-1,10-phenanthroline). Bioelectrochemistry 2006; 70:452-61. [PMID: 16926122 DOI: 10.1016/j.bioelechem.2006.07.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2006] [Revised: 05/27/2006] [Accepted: 07/07/2006] [Indexed: 11/22/2022]
Abstract
The electrocatalytic oxidations of guanine, adenine, guanosine-5'-monophosphate(GMP) and ssDNA were performed in the presence of Fe(II) bis(2,2':6',2''-terpyridine) and Fe(II) tris(1,10-phenanthroline) complexes as homogeneous catalysts by cyclic voltammetric methods. The Fe(II/III) redox couple of these compounds is responsible for their catalytic properties. The electrocatalytic oxidation current of above substrates were developed from the anodic peak currents of Fe(II) bis(2,2':6',2''-terpyridine) and Fe(II) tris(1,10-phenanthroline) complexes at about +0.93 V and 0.97 V, respectively. The electrocatalytic oxidative properties of guanine by Fe(II) bis(2,2':6',2''-terpyridine) complex was measured by amperometry method using the rotating disk electrodes. Electropolymerization of Fe(II) tris(5-amino-1,10-phenanthroline) complex produced thin polymer films on gold and glassy carbon electrodes. The electrochemical quartz crystal microbalance (EQCM) and cyclic voltammetry were used to study the in situ growth of the polymer. The poly(FeII(5-NH(2)-1,10-phen)(3)) exhibited a good electrocatalytic oxidation towards guanine and also for the mixture of guanine and adenine too.
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β-Cyclodextrin incorporated carbon nanotubes-modified electrodes for simultaneous determination of adenine and guanine. J Electroanal Chem (Lausanne) 2006. [DOI: 10.1016/j.jelechem.2006.02.014] [Citation(s) in RCA: 163] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Ren Y, Jiao K, Xu G, Sun W, Gao H. An Electrochemical DNA Sensor Based on Electrodepositing Aluminum Ion Films on Stearic Acid-Modified Carbon Paste Electrode and Its Application for the Detection of Specific Sequences Related to Bar Gene and CP4 Epsps Gene. ELECTROANAL 2005. [DOI: 10.1002/elan.200503355] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Wang Z, Xiao S, Chen Y. Electrocatalytic and Analytical Response of β-Cyclodextrin Incorporated Carbon Nanotubes-Modified Electrodes Toward Guanine. ELECTROANAL 2005. [DOI: 10.1002/elan.200503333] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Abbaspour A, Mehrgardi MA. Electrocatalytic Oxidation of Guanine and DNA on a Carbon Paste Electrode Modified by Cobalt Hexacyanoferrate Films. Anal Chem 2004; 76:5690-6. [PMID: 15456287 DOI: 10.1021/ac049421f] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The electrochemical behavior of cobalt hexacyanoferrate complex adsorbed on a carbon paste electrode (CPE) and its application to the electrocatalytic oxidation of guanine and single-strand DNA (ss-DNA) in aqueous solution are investigated in this report. The modification of CPE by the adsorption of this complex results in excellent amplification of the guanine oxidation response of ss-DNA. The effects of paste composition, scan rate, DNA, and guanine concentration were studied. The detection limits of 52 and 920 ng mL(-)(1) were obtained for guanine and ss-DNA, respectively.
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