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Electrochemical behavior of methylene blue at bare and DNA-modified silver solid amalgam electrodes. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05270-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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2
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Svitková V, Nemčeková K, Vyskočil V. Application of silver solid amalgam electrodes in electrochemical detection of DNA damage. Anal Bioanal Chem 2022; 414:5435-5444. [PMID: 35132476 DOI: 10.1007/s00216-022-03917-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/06/2022] [Accepted: 01/19/2022] [Indexed: 11/24/2022]
Abstract
In this study, a mercury meniscus-modified silver solid amalgam electrode was used for the first time for the detection of UV-induced DNA damage. The integrity of the double-stranded DNA (dsDNA) layer was detected indirectly using the evaluation of the methylene blue reduction within its accumulation into dsDNA after the UV irradiation of the biosensor surface with two different wavelengths (254 nm and 365 nm), monitored by differential pulse voltammetry. Moreover, a simple electrochemical characterization of the biosensor surface was performed using cyclic voltammetry of the redox indicator hexaammineruthenium chloride (RuHex) present in the solution. Electrochemical impedance spectroscopy (EIS) was used in both cases for the verification of results. Individual electrochemical signals depend on the time of biosensor exposure to UV irradiation as well as on the selected wavelengths and are different for both used types of dsDNA (salmon sperm and calf thymus). The highest degradation degree up to 60% was observed using sensitive EIS of methylene blue after 10 min irradiation of the biosensor at 254 nm. The use of RuHex seems to be less sensitive for the detection of dsDNA structural changes, when the degradation degree up to 40% was observed, using EIS at the same conditions.
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Affiliation(s)
- Veronika Svitková
- Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, 81237, Bratislava, Slovakia.
| | - Katarína Nemčeková
- Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, 81237, Bratislava, Slovakia
| | - Vlastimil Vyskočil
- UNESCO Laboratory of Environmental Electrochemistry, Department of Analytical Chemistry, Faculty of Science, Charles University, 12843, Prague, Czech Republic
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3
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Sebest P, Fojt L, Ostatna V, Fojta M, Danhel A. Electrodeposited silver amalgam particles on pyrolytic graphite in (spectro)electrochemical detection of 4-nitrophenol, DNA and green fluorescent protein. Bioelectrochemistry 2020; 132:107436. [DOI: 10.1016/j.bioelechem.2019.107436] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/26/2019] [Accepted: 11/26/2019] [Indexed: 12/25/2022]
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4
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Skalová Š, Langmaier J, Barek J, Vyskočil V, Navrátil T. Doxorubicin determination using two novel voltammetric approaches: A comparative study. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135180] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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5
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Šelešovská R, Herynková M, Skopalová J, Kelíšková-Martinková P, Janíková L, Chýlková J. Reduction behavior of insecticide azoxystrobin and its voltammetric determination using silver solid amalgam electrode. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-018-2348-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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6
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Miniaturized voltammetric cell for cathodic voltammetry making use of an agar membrane. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Šelešovská R, Martinková P, Štěpánková M, Navrátil T, Chýlková J. Comparison Study of Voltammetric Behavior of Muscle Relaxant Dantrolene Sodium on Silver Solid Amalgam and Bismuth Film Electrodes. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2017; 2017:3627428. [PMID: 29057139 PMCID: PMC5615959 DOI: 10.1155/2017/3627428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 07/18/2017] [Accepted: 08/02/2017] [Indexed: 06/07/2023]
Abstract
Voltammetric behavior of muscle relaxant dantrolene sodium (DAN) was studied and the voltammetric methods for its determination using polished and mercury meniscus modified silver solid amalgam electrodes (p-AgSAE and m-AgSAE) as well as using bismuth film electrode (BiFE, ex situ plating on GCE) have been proposed. These working electrodes represent the most commonly used alternatives to mercury ones which come wrongfully into disfavor because of alleged toxicity of mercury. Within this work, the obtained results of DAN determination have been completed by corresponding statistical parameters and also some electrochemical characteristics of AgSAEs and BiFE were assessed, especially in comparison with the mercury electrodes.
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Affiliation(s)
- Renáta Šelešovská
- Faculty of Chemical Technology, Institute of Environmental and Chemical Engineering, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Pavlína Martinková
- Faculty of Chemical Technology, Institute of Environmental and Chemical Engineering, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Michaela Štěpánková
- Faculty of Chemical Technology, Institute of Environmental and Chemical Engineering, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Tomáš Navrátil
- J. Heyrovsky Institute of Physical Chemistry of the CAS, v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Jaromíra Chýlková
- Faculty of Chemical Technology, Institute of Environmental and Chemical Engineering, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
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8
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Construction of electrochemical DNA biosensors for investigation of potential risk chemical and physical agents. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-2012-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Skalová Š, Navrátil T, Barek J, Vyskočil V. Voltammetric determination of sodium anthraquinone-2-sulfonate using silver solid amalgam electrodes. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-1926-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Janovjáková A, Gál M, Krahulec J, Sokolová R, Naumowicz M, Híveš J. Native and denatured enzyme enterokinase determined by electrochemical methods. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-016-1915-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Kuzin Y, Ivanov A, Evtugyn G, Hianik T. Voltammetric Detection of Oxidative DNA Damage Based on Interactions between Polymeric Dyes and DNA. ELECTROANAL 2016. [DOI: 10.1002/elan.201600297] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yury Kuzin
- A. M. Butlerov' Chemistry Institute of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
- Department of Nuclear Physics and Biophysics; Comenius University; Mlynska dolina F1 842 48 Bratislava Slovakia
| | - Alexey Ivanov
- A. M. Butlerov' Chemistry Institute of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
| | - Gennady Evtugyn
- A. M. Butlerov' Chemistry Institute of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
- Department of Nuclear Physics and Biophysics; Comenius University; Mlynska dolina F1 842 48 Bratislava Slovakia
| | - Tibor Hianik
- A. M. Butlerov' Chemistry Institute of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
- OpenLab “DNA-Sensors” of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
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12
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Navrátil T, Nováková K, Josypčuk B, Sokolová R, Šestáková I. Voltammetric detection of phytochelatin transported across unmodified and protoplast modified model phospholipid membranes. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1591-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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13
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Nováková K, Hrdlička V, Navrátil T, Harvila M, Zima J, Barek J. Application of silver solid amalgam electrode for determination of formamidine amitraz. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1575-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Novotný L, Petrankova R. Potentiometric Determination of Silver Nanoparticles using Silver Amalgam Electrodes. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1045584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Sensitive voltammetric determination of herbicide terbutryn using solid electrodes based on silver amalgam and boron-doped diamond. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1556-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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16
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Navrátil T, Nováková K, Barek J, Vyskočil V, Chýlková J. The Use of the Silver Solid Amalgam Electrode for Voltammetric Determination of 9-nitroanthracene. ANAL LETT 2015. [DOI: 10.1080/00032719.2014.979295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Nejdl L, Nguyen HV, Richtera L, Krizkova S, Guran R, Masarik M, Hynek D, Heger Z, Lundberg K, Erikson K, Adam V, Kizek R. Label-free bead-based metallothionein electrochemical immunosensor. Electrophoresis 2015; 36:1894-904. [PMID: 26033737 DOI: 10.1002/elps.201500069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 05/06/2015] [Accepted: 05/09/2015] [Indexed: 12/12/2022]
Abstract
A novel microfluidic label-free bead-based metallothionein immunosensors was designed. To the surface of superparamagnetic agarose beads coated with protein A, polyclonal chicken IgY specifically recognizing metallothionein (MT) were immobilized via rabbit IgG. The Brdicka reaction was used for metallothionein detection in a microfluidic printed 3D chip. The assembled chip consisted of a single copper wire coated with a thin layer of amalgam as working electrode. Optimization of MT detection using designed microfluidic chip was performed in stationary system as well as in the flow arrangement at various flow rates (0-1800 μL/min). In stationary arrangement it is possible to detect MT concentrations up to 30 ng/mL level, flow arrangement allows reliable detection of even lower concentration (12.5 ng/mL). The assembled miniature flow chip was subsequently tested for the detection of MT elevated levels (at approx. level 100 μg/mL) in samples of patients with cancer. The stability of constructed device for metallothionein detection in flow arrangement was found to be several days without any maintenance needed.
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Affiliation(s)
- Lukas Nejdl
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Hoai Viet Nguyen
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Lukas Richtera
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Sona Krizkova
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Roman Guran
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Michal Masarik
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - David Hynek
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Zbynek Heger
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Karin Lundberg
- Lab on a Bead AΒ, Division of Research and Development, Uppsala, Sweden
| | - Kristofer Erikson
- Lab on a Bead AΒ, Division of Research and Development, Uppsala, Sweden.,Department of Engineering Sciences, Division of Solid State Physics, The Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Vojtech Adam
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Rene Kizek
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
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18
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Šelešovská R, Janíková-Bandžuchová L, Kadubcová M, Štěpánková M. Voltammetric Behavior of the Insecticide Pymetrozine on a Mercury Meniscus Modified Silver Solid Amalgam Electrode. ANAL LETT 2015. [DOI: 10.1080/00032719.2014.979293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Jaklová Dytrtová J, Jakl M, Nováková K, Navrátil T, Šádek V. Binding abilities of copper to phospholipids and transport of oxalate. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1385-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Šelešovská R, Janíková L, Chýlková J. Green electrochemical sensors based on boron-doped diamond and silver amalgam for sensitive voltammetric determination of herbicide metamitron. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1372-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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Determination of 5-nitroindazole using silver solid amalgam electrode. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1346-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Garcia de Paula C, Alves de Toledo R, Vaz CMP, Marques Cordeiro PJ, Batistuti JP, Aparecida Pastre I, Shim H, Fertonani FL. A Solid Film Electrode of Intermetallic Ag
2
Hg
3.02
for the Direct Determination of Folic Acid in Fresh and Processed Fruit Juices. ELECTROANAL 2014. [DOI: 10.1002/elan.201400512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cleide Garcia de Paula
- Instituto de Química, Universidade Estadual Paulista, P. O. Box 355, 14800‐900, Araraquara‐SP, Brazil
| | - Renata Alves de Toledo
- Embrapa Instrumentação Agropecuária, P. O. Box 741, 13560‐970, São Carlos‐SP, Brazil
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, SAR, P. R. China
| | | | - Paulo Jorge Marques Cordeiro
- Instituto de Química de São Carlos, Universidade de São Paulo, Av. Trabalhador São‐Carlense, 400, P. O. Box 780, 13560‐970, São Carlos‐SP, Brazil
| | - José Paschoal Batistuti
- Faculdade de Ciências Farmacêuticas, Universidade Eatadual Paulista, P. O. Box 355, 14800‐900, Araraquara‐SP, Brazil
| | - Ieda Aparecida Pastre
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Eatadual Paulista, Rua C. Colombo, 2265, 15054‐000, São José do Rio Preto‐SP, Brazil
| | - Hojae Shim
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, SAR, P. R. China
| | - Fernando Luís Fertonani
- Instituto de Química, Universidade Estadual Paulista, P. O. Box 355, 14800‐900, Araraquara‐SP, Brazil
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Eatadual Paulista, Rua C. Colombo, 2265, 15054‐000, São José do Rio Preto‐SP, Brazil
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23
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Ribeiro FW, Mendonça GL, Soares JE, Freire VN, De Souza D, Casciano PN, de Lima-Neto P, Correia AN. Exploiting the Reduction of Haloperidol: Electrochemical and Computational Studies Using Silver Amalgam and HMDE Electrodes. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.06.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Voltammetric Study of dsDNA Modified by Multi-redox Label Based on N-methyl-4-hydrazino-7-nitrobenzofurazan. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.137] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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25
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Josypčuk B, Fojta M, Yosypchuk O. Thiolate monolayers formed on different amalgam electrodes. Part II: Properties and application. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.02.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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The use of copper solid amalgam electrodes for determination of the pesticide thiram. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2035-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Supramolecular Polymeric Chemosensor for Biomedical Applications: Design and Synthesis of a Luminescent Zinc Metallopolymer as a Chemosensor for Adenine Detection. J Fluoresc 2012; 22:1539-46. [DOI: 10.1007/s10895-012-1092-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 06/20/2012] [Indexed: 01/23/2023]
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28
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Voltammetric monitoring of electrochemical reduction of riboflavin using silver solid amalgam electrodes. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.05.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Hlavata L, Benikova K, Vyskocil V, Labuda J. Evaluation of damage to DNA induced by UV-C radiation and chemical agents using electrochemical biosensor based on low molecular weight DNA and screen-printed carbon electrode. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.119] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Affiliation(s)
- Emil Paleček
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 612
65 Brno, Czech Republic
| | - Martin Bartošík
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 612
65 Brno, Czech Republic
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31
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Šelešovská R, Bandžuchová L, Navrátil T, Chýlková J. Voltammetric determination of leucovorin using silver solid amalgam electrode. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.11.071] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Meerabai Devi L, Negi DPS. Sensitive and selective detection of adenine using fluorescent ZnS nanoparticles. NANOTECHNOLOGY 2011; 22:245502. [PMID: 21508450 DOI: 10.1088/0957-4484/22/24/245502] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We have used fluorescent ZnS nanoparticles as a probe for the determination of adenine. A typical 2 × 10(-7) M concentration of adenine quenches 39.3% of the ZnS fluorescence. The decrease in ZnS fluorescence as a function of adenine concentration was found to be linear in the concentration range 5 × 10(-9)-2 × 10(-7) M. The limit of detection (LOD) of adenine by this method is 3 nM. Among the DNA bases, only adenine quenched the fluorescence of ZnS nanoparticles in the submicromolar concentration range, thus adding selectivity to the method. The amino group of adenine was important in determining the quenching efficiency. Steady-state fluorescence experiments suggest that one molecule of adenine is sufficient to quench the emission arising from a cluster of ZnS consisting of about 20 molecules. Time-resolved fluorescence measurements indicate that the adenine molecules block the sites on the surface of ZnS responsible for emission with the longest lifetime component. This method may be applied for the determination of adenine in biological samples since the measurements have been carried out at pH 7.
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Affiliation(s)
- L Meerabai Devi
- Department of Chemistry, North-Eastern Hill University, Permanent Campus, Shillong, India
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33
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Electrochemical behavior of folic acid on mercury meniscus modified silver solid amalgam electrode. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.10.090] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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34
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35
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Šelešovská R, Bandžuchová L, Navrátil T. Voltammetric Behavior of Methotrexate Using Mercury Meniscus Modified Silver Solid Amalgam Electrode. ELECTROANAL 2010. [DOI: 10.1002/elan.201000440] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Němcová K, Havran L, Šebest P, Brázdová M, Pivoňková H, Fojta M. A label-free electrochemical test for DNA-binding activities of tumor suppressor protein p53 using immunoprecipitation at magnetic beads. Anal Chim Acta 2010; 668:166-70. [DOI: 10.1016/j.aca.2010.04.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 04/02/2010] [Accepted: 04/07/2010] [Indexed: 01/27/2023]
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37
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Aladag N, Trnkova L, Kourilova A, Ozsoz M, Jelen F. Voltammetric Study of Aminopurines on Pencil Graphite Electrode in the Presence of Copper Ions. ELECTROANAL 2010. [DOI: 10.1002/elan.201000031] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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38
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Yosypchuk B, Fojta M, Barek J. Preparation and Properties of Mercury Film Electrodes on Solid Amalgam Surface. ELECTROANAL 2010. [DOI: 10.1002/elan.201000032] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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39
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Horáková P, Těsnohlídková L, Havran L, Vidláková P, Pivoňková H, Fojta M. Determination of the Level of DNA Modification with Cisplatin by Catalytic Hydrogen Evolution at Mercury-Based Electrodes. Anal Chem 2010; 82:2969-76. [DOI: 10.1021/ac902987x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Petra Horáková
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic, and Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Lucie Těsnohlídková
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic, and Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Luděk Havran
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic, and Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Pavlína Vidláková
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic, and Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Hana Pivoňková
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic, and Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Miroslav Fojta
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic, and Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
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Pecková K, Barek J, Navrátil T, Yosypchuk B, Zima J. Voltammetric Determination of Nitronaphthalenes at a Silver Solid Amalgam Electrode. ANAL LETT 2009. [DOI: 10.1080/00032710903142442] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Navrátil T, Barek J, Fašinová-Šebková S. Differential Pulse Voltammetric Determination of Selected Nitro-Compounds on Silver, Solid Silver Composite, and Solid Graphite Composite Electrodes. ELECTROANAL 2009. [DOI: 10.1002/elan.200804383] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hasoň S, Vetterl V, Jelen F, Fojta M. Improved sensitivity and selectivity of uric acid voltammetric sensing with mechanically grinded carbon/graphite electrodes. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.10.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Farias P, Aguiar Castro A, de Luca Rebello Wagener A, Monsores Miguel E. Adenine Determination in the Presence of Copper in Diluted Alkaline Electrolyte by Adsorptive Stripping Voltammetry at the Mercury Film Electrode. ELECTROANAL 2008. [DOI: 10.1002/elan.200804201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Study of Copper and Purine-Copper Complexes on Modified Carbon Electrodes by Cyclic and Elimination Voltammetry. SENSORS 2008; 8:429-444. [PMID: 27879715 PMCID: PMC3681135 DOI: 10.3390/s8010429] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2007] [Accepted: 01/15/2008] [Indexed: 11/16/2022]
Abstract
Using a paraffin impregnated graphite electrode (PIGE) and mercury-modified pyrolytic graphite electrode with basal orientation (Hg-PGEb) copper(II) and Cu(II)-DNA purine base solutions have been studied by cyclic (CV) and linear sweep voltammetry (LSV) in connection with elimination voltammetry with linear scan (EVLS). In chloride and bromide solutions (pH 6), the redox process of Cu(II) proceeded on PIGE with two cathodic and two anodic potentially separated signals. According to the elimination function E4, the first cathodic peak corresponds to the reduction Cu(II) + e- → Cu(I) with the possibility of fast disproportionation 2Cu(I) → Cu(II)+ Cu(0). The E4 of the second cathodic peak signalized an electrode process controlled by a surface reaction. The electrode system of Cu(II) on Hg-PGEb in borate buffer (pH 9.2) was characterized by one cathodic and one anodic peak. Anodic stripping voltammetry (ASV) on PIGE and cathodic stripping voltammetry (CSV) on Hg-PGEb were carried out at potentials where the reduction of copper ions took place and Cu(I)-purine complexes were formed. By using ASV and CSV in combination with EVLS, the sensitivity of Cu(I)-purine complex detection was enhanced relative to either ASV or CSV alone, resulting in higher peak currents of more than one order of magnitude. The statistical treatment of CE data was used to determine the reproducibility of measurements. Our results show that EVLS in connection with the stripping procedure is useful for both qualitative and quantitative microanalysis of purine derivatives and can also reveal details of studied electrode processes.
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Barek J, Fischer J, Navrátil T, Pecková K, Yosypchuk B, Zima J. Nontraditional Electrode Materials in Environmental Analysis of Biologically Active Organic Compounds. ELECTROANAL 2007. [DOI: 10.1002/elan.200703918] [Citation(s) in RCA: 139] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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DNA Determination in the Presence of Copper in Diluted Alkaline Electrolyte by Adsorptive Stripping Voltammetry at the Mercury Film Electrode. ELECTROANAL 2007. [DOI: 10.1002/elan.200703845] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Šelešovská-Fadrná R, Fojta M, Navrátil T, Chýlková J. Brdička-type processes of cysteine and cysteine-containing peptides on silver amalgam electrodes. Anal Chim Acta 2007; 582:344-52. [DOI: 10.1016/j.aca.2006.08.064] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2006] [Revised: 08/04/2006] [Accepted: 08/10/2006] [Indexed: 11/15/2022]
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Cadmium reduction process on paraffin impregnated graphite electrode studied by elimination voltammetry with linear scan. J Electroanal Chem (Lausanne) 2006. [DOI: 10.1016/j.jelechem.2006.05.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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