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Abedi R, Bakhsh Raoof J, Bagheri Hashkavayi A, Asghary M. Highly sensitive and label-free electrochemical biosensor based on gold nanostructures for studying the interaction of prostate cancer gene sequence with epirubicin anti-cancer drug. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106668] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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2
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Ipte PR, Satpati AK. Probing the interaction of ciprofloxacin and E. coli by electrochemistry, spectroscopy and atomic force microscopy. Biophys Chem 2020; 266:106456. [PMID: 32835912 DOI: 10.1016/j.bpc.2020.106456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/21/2020] [Accepted: 08/10/2020] [Indexed: 11/16/2022]
Abstract
Under the present investigation, effect of ciprofloxacin (CIP) on Escherichia coli has been investigated using electrochemical, spectroscopic and atomic force microscope (AFM) measurements. Investigation reveals the interaction pattern of CIP with E. coli. The CIP essentially interacts with the outer membrane protein F (OmpF), the formation constant of the complex forms between CIP and the OmpF active sites over E. coli is obtained as log Kf of 12.1. Spectroscopic measurements are carried out, which supports the electrochemical measurements on the interaction between CIP and E. coli, at a higher concentration, CIP induces lysis of the E. coli cell membrane. Spectroscopic investigations further reveals that the FeS containing proteins present inside the E. coli cells released out through the ruptured cell membrane of E. coli. Different degrees of detrimental effects on E. coli has been observed when exposed to different concentrations of the drugs. The microscopic images obtained from the AFM scans of E. coli in presence of CIP shows deformation of the E. coli cell wall and its rupture with increasing concentrations of CIP.
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Affiliation(s)
- Priyanka R Ipte
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Ashis Kumar Satpati
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
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3
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Erdem A, Eksin E, Kadikoylu G, Yildiz E. Voltammetric detection of miRNA hybridization based on electroactive indicator-cobalt phenanthroline. Int J Biol Macromol 2020; 158:819-825. [PMID: 32339576 DOI: 10.1016/j.ijbiomac.2020.04.168] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/18/2020] [Accepted: 04/21/2020] [Indexed: 12/28/2022]
Abstract
The indicator-based nucleic acid detection protocol is one of the major approaches to monitor the sequence-selective nucleic acid hybridization-mediated recognition events in biochemical analysis. The metal complex, cobalt phenanthroline, [Co(phen)33+], which is one of the electroactive indicators, interacts more with double stranded nucleic acids via intercalation. Thus, this interaction permits an increase at the electrochemical signal of [Co(phen)33+]. In our study, the interaction of metal complex, [Co(phen)33+] with nucleic acids was examined using pencil graphite electrodes (PGEs) in combination with differential pulse voltammetry (DPV) technique. The voltammetric detection of miRNA-34a was investigated based on the changes at the electrochemical signal of [Co(phen)33+] under optimized experimental conditions; such as accumulation potentialof metal complex and DNA probe concentration, hybridization time, target miRNA concentration. Furthermore, the selectivity of electrochemical miRNA-34a biosensor was studied in contrast to different miRNAs. The applicability of indicator-based biosensor specific to miRNA-34a was also presented by using total RNA samples.
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Affiliation(s)
- Arzum Erdem
- Analytical Chemistry Department, Faculty of Pharmacy, Ege University, 35100, Bornova, Izmir, Turkey; Biomedical Technologies Department, Graduate School of Natural and Applied Sciences, Ege University, 35100, Bornova, Izmir, Turkey.
| | - Ece Eksin
- Analytical Chemistry Department, Faculty of Pharmacy, Ege University, 35100, Bornova, Izmir, Turkey
| | - Gulce Kadikoylu
- Analytical Chemistry Department, Faculty of Pharmacy, Ege University, 35100, Bornova, Izmir, Turkey; Biomedical Technologies Department, Graduate School of Natural and Applied Sciences, Ege University, 35100, Bornova, Izmir, Turkey
| | - Esma Yildiz
- Analytical Chemistry Department, Faculty of Pharmacy, Ege University, 35100, Bornova, Izmir, Turkey; Biomedical Technologies Department, Graduate School of Natural and Applied Sciences, Ege University, 35100, Bornova, Izmir, Turkey
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4
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Beebe SJ, Celestine MJ, Bullock JL, Sandhaus S, Arca JF, Cropek DM, Ludvig TA, Foster SR, Clark JS, Beckford FA, Tano CM, Tonsel-White EA, Gurung RK, Stankavich CE, Tse-Dinh YC, Jarrett WL, Holder AA. Synthesis, characterization, DNA binding, topoisomerase inhibition, and apoptosis induction studies of a novel cobalt(III) complex with a thiosemicarbazone ligand. J Inorg Biochem 2020; 203:110907. [PMID: 31715377 PMCID: PMC7053658 DOI: 10.1016/j.jinorgbio.2019.110907] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 10/24/2019] [Accepted: 10/27/2019] [Indexed: 01/09/2023]
Abstract
In this study, 9-anthraldehyde-N(4)-methylthiosemicarbazone (MeATSC) 1 and [Co(phen)2(O2CO)]Cl·6H2O 2 (where phen = 1,10-phenanthroline) were synthesized. [Co(phen)2(O2CO)]Cl·6H2O 2 was used to produce anhydrous [Co(phen)2(H2O)2](NO3)33. Subsequently, anhydrous [Co(phen)2(H2O)2](NO3)33 was reacted with MeATSC 1 to produce [Co(phen)2(MeATSC)](NO3)3·1.5H2O·C2H5OH 4. The ligand, MeATSC 1 and all complexes were characterized by elemental analysis, FT IR, UV-visible, and multinuclear NMR (1H, 13C, and 59Co) spectroscopy, along with HRMS, and conductivity measurements, where appropriate. Interactions of MeATSC 1 and complex 4 with calf thymus DNA (ctDNA) were investigated by carrying out UV-visible spectrophotometric studies. UV-visible spectrophotometric studies revealed weak interactions between ctDNA and the analytes, MeATSC 1 and complex 4 (Kb = 8.1 × 105 and 1.6 × 104 M-1, respectively). Topoisomerase inhibition assays and cleavage studies proved that complex 4 was an efficient catalytic inhibitor of human topoisomerases I and IIα. Based upon the results obtained from the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay on 4T1-luc metastatic mammary breast cancer cells (IC50 = 34.4 ± 5.2 μM when compared to IC50 = 13.75 ± 1.08 μM for the control, cisplatin), further investigations into the molecular events initiated by exposure to complex 4 were investigated. Studies have shown that complex 4 activated both the apoptotic and autophagic signaling pathways in addition to causing dissipation of the mitochondrial membrane potential (ΔΨm). Furthermore, activation of cysteine-aspartic proteases3 (caspase 3) in a time- and concentration-dependent manner coupled with the ΔΨm, studies implicated the intrinsic apoptotic pathway as the major regulator of cell death mechanism.
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Affiliation(s)
- Stephen J Beebe
- The Frank Reidy Center for Bioelectrics, 4211 Monarch Way, Suite 300, Norfolk, VA 23529, USA
| | - Michael J Celestine
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Jimmie L Bullock
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Shayna Sandhaus
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th St., Miami, FL 33199, USA
| | - Jessa Faye Arca
- Department of Chemistry and Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, MS 39406, USA
| | - Donald M Cropek
- U.S. Army Corps of Engineers, Construction Engineering Research Laboratory, Champaign, IL 61822, USA
| | - Tekettay A Ludvig
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Sydney R Foster
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Jasmine S Clark
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Floyd A Beckford
- The University of Virginia's College at Wise, 1 College Avenue, Wise, VA 24293, USA
| | - Criszcele M Tano
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Elizabeth A Tonsel-White
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Raj K Gurung
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Courtney E Stankavich
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Yuk-Ching Tse-Dinh
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th St., Miami, FL 33199, USA
| | - William L Jarrett
- School of Polymers and High-Performance Materials, The University of Southern Mississippi, 118 College Drive, #5050, Hattiesburg, MS 39406, USA
| | - Alvin A Holder
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA.
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Elkhawaga AA, Khalifa MM, El-Badawy O, Hassan MA, El-Said WA. Rapid and highly sensitive detection of pyocyanin biomarker in different Pseudomonas aeruginosa infections using gold nanoparticles modified sensor. PLoS One 2019; 14:e0216438. [PMID: 31361746 PMCID: PMC6667159 DOI: 10.1371/journal.pone.0216438] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/17/2019] [Indexed: 12/19/2022] Open
Abstract
Successful antibiotic treatment of infections relies on accurate and rapid identification of the infectious agents. Pseudomonas aeruginosa is implicated in a wide range of human infections that mostly become complicated and life threating, especially in immunocompromised and critically ill patients. Conventional microbiological methods take more than three days to obtain accurate results. Pyocyanin is a distinctive electroactive biomarker for Pseudomonas aeruginosa. Here, we have prepared polyaniline/gold nanoparticles decorated ITO electrode and tested it to establish a rapid, diagnostic and highly sensitive pyocyanin sensor in a culture of Pseudomonas aeruginosa clinical isolates with high selectivity for traces of pyocyanin when measured in the existence of different interferences like vitamin C, uric acid, and glucose. The scanning electron microscopy and cyclic voltammetry techniques were used to characterize the morphology and electrical conductivity of the constructed electrode. The determined linear range for pyocyanin detection was from 238 μM to 1.9 μM with a detection limit of 500 nM. Compared to the screen-printed electrode used before, the constructed electrode showed a 4-fold enhanced performance. Furthermore, PANI/Au NPs/ITO modified electrodes have demonstrated the ability to detect pyocyanin directly in Pseudomonas aeruginosa culture without any potential interference with other species.
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Affiliation(s)
- Amal A Elkhawaga
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Marwa M Khalifa
- Department of Microbiology and Immunology, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Omnia El-Badawy
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Mona A Hassan
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Waleed A El-Said
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
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Fuentes I, García-Mendiola T, Sato S, Pita M, Nakamura H, Lorenzo E, Teixidor F, Marques F, Viñas C. Metallacarboranes on the Road to Anticancer Therapies: Cellular Uptake, DNA Interaction, and Biological Evaluation of Cobaltabisdicarbollide [COSAN] . Chemistry 2018; 24:17239-17254. [PMID: 30222214 DOI: 10.1002/chem.201803178] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Indexed: 01/24/2023]
Abstract
After uptake by U87 MG and A375 cancer cells, cobaltabisdicarbollide [COSAN]- distributes between membrane and nucleus and presents no relevant cytotoxicity against both cell lines even for long incubation times. The cytotoxicity of Na[COSAN] was also tested towards one normal cell line, the V79 fibroblasts, in order to ascertain the noncytotoxic profile of the compound. As the cell's nucleus contains DNA, the interaction between [COSAN]- and double-stranded calf thymus DNA (CT-dsDNA) has been investigated. There is a strong interaction between both molecules forming a nanohybrid CT-dsDNA-[COSAN] biomaterial, which was fully characterized. Moreover, Na[COSAN] shows characteristic redox peaks ascribed to the oxidation/reduction of Co3+/2+ at a formal potential of -1.444 V and it can be accumulated at a surface-immobilized DNA layer of glassy carbon electrodes. The equilibrium surface-binding constants (Kox /Kred ), which confirm that [COSAN]- interacts with DNA by an intercalative or electrostatic mode, depending on the ionic strength of the solution, were estimated. In addition, high binding affinity of Na[COSAN] to proteins was observed by 11 B{1 H} NMR and confirmed in vivo. Finally, biodistribution studies of [COSAN]- in normal mice were run. After administration, Na[COSAN] was distributed into many organs but mainly accumulated in the reticuloendothelial system (RES), including liver and spleen. After 1 h, the formation of aggregates by plasma protein interaction plays a role in the biodistribution profile; the aggregates accumulate mostly in the lungs. Na[COSAN], which displays low toxicity and high uptake by relevant cancer cells accumulating boron within the nucleus, could act as a suitable compound for further developments as boron neutron capture therapy (BNCT) agents.
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Affiliation(s)
- Isabel Fuentes
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Tania García-Mendiola
- Instituto Madrileño de Estudios Avanzados (IMDEA) Nanociencia, 28049, Madrid, Spain.,Departamento Química AnalíticayAnálisis Instrumental, Universidad Autónoma de Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Shinichi Sato
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
| | - Marcos Pita
- Instituto de Catalisis (CSIC), Campus Universidad Autónoma, 28049, Madrid, Spain
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
| | - Encarnación Lorenzo
- Instituto Madrileño de Estudios Avanzados (IMDEA) Nanociencia, 28049, Madrid, Spain.,Departamento Química AnalíticayAnálisis Instrumental, Universidad Autónoma de Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10 (km 139.7), 2695-066, Bobadela, LRS, Portugal
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
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7
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Analysis of the evolution of the detection limits of electrochemical nucleic acid biosensors II. Anal Bioanal Chem 2017; 409:4335-4352. [DOI: 10.1007/s00216-017-0377-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 04/11/2017] [Accepted: 04/21/2017] [Indexed: 01/07/2023]
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8
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García-Mendiola T, Bayon-Pizarro V, Zaulet A, Fuentes I, Pariente F, Teixidor F, Viñas C, Lorenzo E. Metallacarboranes as tunable redox potential electrochemical indicators for screening of gene mutation. Chem Sci 2016; 7:5786-5797. [PMID: 30034717 PMCID: PMC6022041 DOI: 10.1039/c6sc01567k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 06/08/2016] [Indexed: 12/17/2022] Open
Abstract
The substitution of hydrogen with chlorine in the metallacarborane [3,3-Fe(1,2-closo-C2B9H11)2]- cluster modulates the formal potential of the Fe3+/Fe2+ redox couple, shifting it to a more positive value. Hence, very similar redox probes with a wide range of formal potentials, ranging from negative to positive values, are available. Thus, we have achieved the synthesis and studied the electrochemical behaviour of the sodium salt of [3,3-Fe(8,9,12-Cl3-1,2-closo-C2B9H8)2]- in aqueous media. This strategy allows tuning of the redox potential of the [3,3-Fe(1,2-closo-C2B9H11)2]- framework with a minor change in its shape and dimensions. We also describe the interaction of the prepared [3,3-Fe(8,9,12-Cl3-1,2-closo-C2B9H8)2]- and the pristine [3,3-Fe(1,2-closo-C2B9H11)2]- with DNA. These studies have been carried out not only with DNA in solution but also with DNA immobilized on screen-printed gold electrodes. The results obtained point to a strong interaction between the metallacarboranes and DNA, to a different extent with single stranded DNA (ssDNA) compared to double stranded DNA (dsDNA). This property makes them selective and wide-ranging potential electrochemical indicators of hybridization. The suitability of these new redox indicators for selective DNA biosensor development has been probed by the direct detection of two different mutations associated with cystic fibrosis in PCR amplicons extracted from blood cells.
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Affiliation(s)
- Tania García-Mendiola
- Departamento Química Analítica y Análisis Instrumental , Universidad Autónoma de Madrid , Spain .
- Instituto Madrileño de Estudios Avanzados (IMDEA) Nanociencia , Spain
| | - Victoria Bayon-Pizarro
- Departamento Química Analítica y Análisis Instrumental , Universidad Autónoma de Madrid , Spain .
| | - Adnana Zaulet
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus UAB, 08193 Bellaterra , Barcelona , Spain .
| | - Isabel Fuentes
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus UAB, 08193 Bellaterra , Barcelona , Spain .
| | - Félix Pariente
- Departamento Química Analítica y Análisis Instrumental , Universidad Autónoma de Madrid , Spain .
- Instituto Madrileño de Estudios Avanzados (IMDEA) Nanociencia , Spain
| | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus UAB, 08193 Bellaterra , Barcelona , Spain .
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus UAB, 08193 Bellaterra , Barcelona , Spain .
| | - Encarnación Lorenzo
- Departamento Química Analítica y Análisis Instrumental , Universidad Autónoma de Madrid , Spain .
- Instituto Madrileño de Estudios Avanzados (IMDEA) Nanociencia , Spain
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9
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A Highly Sensitive Sensor Based on Reduced Graphene Oxide, Carbon Nanotube and a Co(II) Complex Modified Carbon Paste Electrode: Simultaneous Determination of Isoprenaline, Captopril and Tryptophan. ELECTROANAL 2015. [DOI: 10.1002/elan.201500236] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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10
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Kocak I, Yildiz U, Coban B, Sengul A. DNA-binding studies of complex of Pt(bpy)(pip)]2+ and [Pt(bpy)(hpip)]2+ by electrochemical methods: development of an electrochemical DNA biosensor. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2859-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Simple and label-free electrochemical impedance Amelogenin gene hybridization biosensing based on reduced graphene oxide. Biosens Bioelectron 2014; 58:145-52. [DOI: 10.1016/j.bios.2014.01.053] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 01/22/2014] [Accepted: 01/28/2014] [Indexed: 11/19/2022]
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12
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Safavieh M, Ahmed MU, Ng A, Zourob M. High-throughput real-time electrochemical monitoring of LAMP for pathogenic bacteria detection. Biosens Bioelectron 2014; 58:101-6. [DOI: 10.1016/j.bios.2014.02.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 02/03/2014] [Accepted: 02/04/2014] [Indexed: 02/04/2023]
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13
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Regan EM, Hallett AJ, Wong LC, Saeed IQ, Langdon-Jones EE, Buurma NJ, Pope SJ, Estrela P. A novel cobalt complex for enhancing amperometric and impedimetric DNA detection. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.10.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Hamidi-Asl E, Raoof JB, Ojani R, Hejazi MS. Indigo Carmine as New Label in PNA Biosensor for Detection of Short Sequence of p53 Tumor Suppressor Gene. ELECTROANAL 2013. [DOI: 10.1002/elan.201300155] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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15
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Wang Q, Ding Y, Wang L, Ni J, Yu Z, Lin H, Gao F. Low-Background, Highly Sensitive DNA Biosensor by Using an Electrically Neutral Cobalt(II) Complex as the Redox Hybridization Indicator. Chem Asian J 2013; 8:1455-62. [DOI: 10.1002/asia.201300047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Revised: 03/07/2013] [Indexed: 11/10/2022]
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16
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Hamidi-Asl E, Raoof JB, Ojani R, Golabi SM, Hejazi MS. A new peptide nucleotide acid biosensor for electrochemical detection of single nucleotide polymorphism in duplex DNA via triplex structure formation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2013. [DOI: 10.1007/s13738-013-0254-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Analysis of the evolution of the detection limits of electrochemical DNA biosensors. Anal Bioanal Chem 2013; 405:3705-14. [DOI: 10.1007/s00216-012-6672-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 12/04/2012] [Accepted: 12/18/2012] [Indexed: 11/26/2022]
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18
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Li XC, Liu KG, Qin DA, Cheng CC, Chen BX, Hu ML. Influence of bromoethyl group on biological activity of 5-fluorouracil prodrug: Insights from X-ray crystallography and molecular docking. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.05.070] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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DNA hybridization biosensor using chitosan–carbon nanotubes composite film as an immobilization platform and [Cu(bpy)(MBZ)2(H2O)] (bpy=2,2′-bipyridine, MBZ=p-methylbenzoate) as a novel redox indicator. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.02.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Nasirizadeh N, Zare HR, Pournaghi-Azar MH, Hejazi MS. Introduction of hematoxylin as an electroactive label for DNA biosensors and its employment in detection of target DNA sequence and single-base mismatch in human papilloma virus corresponding to oligonucleotide. Biosens Bioelectron 2010; 26:2638-44. [PMID: 21146975 DOI: 10.1016/j.bios.2010.11.026] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2010] [Accepted: 11/17/2010] [Indexed: 01/21/2023]
Abstract
For the detection of DNA hybridization, a new electrochemical biosensor was developed on the basis of the interaction of hematoxylin with 20-mer deoxyoligonucleotides (from human papilloma virus, HPV). The study was performed based on the interaction of hematoxylin with an alkanethiol DNA probe self-assembled gold electrode (ss-DNA/AuE) and its hybridization form (ds-DNA/AuE). The optimum conditions were found for the immobilization of HPV probe on the gold electrode (AuE) surface and its hybridization with the target DNA. Electrochemical detection of the self-assembled DNA and the hybridization process were performed by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) over the potential range where the accumulated hematoxylin at the modified electrode was electroactive. Observing a remarkable difference between the voltammetric signals of the hematoxylin obtained from different hybridization samples (non-complementary, mismatch and complementary DNAs), we confirmed the potential of the developed biosensor in detecting and discriminating the target complementary DNA from non-complementary and mismatch oligonucleotides. Under optimum conditions, the electrochemical signal had a linear relationship with the concentration of the target DNA ranging from 12.5 nM to 350.0 nM, and the detection limit was 3.8 nM.
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Affiliation(s)
- Navid Nasirizadeh
- Department of Chemistry, Yazd University, P.O. Box 89195-741, Yazd, Iran
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21
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García T, Fernández-Barrena MG, Revenga-Parra M, Núñez A, Casero E, Pariente F, Prieto J, Lorenzo E. Disposable sensors for rapid screening of mutated genes. Anal Bioanal Chem 2010; 398:1385-93. [DOI: 10.1007/s00216-010-4029-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 07/09/2010] [Accepted: 07/12/2010] [Indexed: 10/19/2022]
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Plata MR, Contento AM, Ríos A. State-of-the-art of (bio)chemical sensor developments in analytical Spanish groups. SENSORS (BASEL, SWITZERLAND) 2010; 10:2511-76. [PMID: 22319260 PMCID: PMC3274191 DOI: 10.3390/s100402511] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 02/03/2010] [Accepted: 02/28/2010] [Indexed: 11/16/2022]
Abstract
(Bio)chemical sensors are one of the most exciting fields in analytical chemistry today. The development of these analytical devices simplifies and miniaturizes the whole analytical process. Although the initial expectation of the massive incorporation of sensors in routine analytical work has been truncated to some extent, in many other cases analytical methods based on sensor technology have solved important analytical problems. Many research groups are working in this field world-wide, reporting interesting results so far. Modestly, Spanish researchers have contributed to these recent developments. In this review, we summarize the more representative achievements carried out for these groups. They cover a wide variety of sensors, including optical, electrochemical, piezoelectric or electro-mechanical devices, used for laboratory or field analyses. The capabilities to be used in different applied areas are also critically discussed.
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Affiliation(s)
- María Reyes Plata
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
| | - Ana María Contento
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
| | - Angel Ríos
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
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23
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Riskin M, Willner I. Coupled electrochemical/photochemical patterning and erasure of Ag(0) nanoclusters on Au surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:13900-13905. [PMID: 19627162 DOI: 10.1021/la901701u] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A nitrospiropyran (1a) monolayer-modified Au electrode provides an active surface for the photolithographic patterning of an electrode with Ag(0) nanoclusters. Illumination of the monolayer-modified Au surface through a mask yields nitromerocyanine (1b)-patterned domains on the Au electrode that bind Ag(+) ions. The electrochemical reduction of the Ag(+) ions yields stable Ag(0) nanoclusters on the patterned domains, and this enables the SEM imaging of the resulting microstructures. The photoisomerizable and electroactive nitromerocyanine/Ag(0) nanoclusters exhibit several important features: (i) By the electrochemical oxidation of Ag(0) nanoclusters to Ag(+) ions, the patterned metallic nanoclusters are erased but stored in the form of Ag(+) ions, confined to the patterned monolayer. The stored information can be retrieved by the electrochemical reduction of the Ag(+) ions. (ii) The photoisomerization of the nitromerocyanine (1b)-modified domains to the nitrospiropyran (1a) state (lambda > 475 nm) coupled to the electrochemical oxidation of the Ag(0) nanoclusters to Ag(+) enables the removal of Ag(+) from the surface and its restoration for new patterning. (iii) The orthogonal patterning of the Au surface with Ag(0) nanocluster structures is accomplished by the stepwise coupled photochemical/electrochemical patterning of the surface by two (or more) irradiation steps through the mask.
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Affiliation(s)
- Michael Riskin
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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24
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García T, Casero E, Revenga-Parra M, Martín-Benito J, Pariente F, Vázquez L, Lorenzo E. Architectures based on the use of gold nanoparticles and ruthenium complexes as a new route to improve genosensor sensitivity. Biosens Bioelectron 2008; 24:184-90. [PMID: 18485689 DOI: 10.1016/j.bios.2008.03.034] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Revised: 03/12/2008] [Accepted: 03/25/2008] [Indexed: 10/22/2022]
Abstract
The preparation of DNA-sensing architectures based on gold nanoparticles (Au-NPs) in conjunction with an "in situ" prepared ruthenium complex as a new route to improve the analytical properties of genosensors is described. In the development of these architectures several strategies to obtain Au-NPs modified gold electrodes (Au-NP/Au) have been essayed, in particular covalent binding and electrochemical deposition from a solution containing Au-NPs previously synthesized. UV-vis absorption measurements in conjunction with transmission electron microscope (TEM) images reveal that the synthesized Au-NPs are stable for at least 4 weeks and have a narrow size distribution. Atomic force microscopy (AFM) was employed to characterize the morphology and to estimate the Au-NPs surface coverage of the modified gold electrodes obtained following the different modification strategies. In order to assess the utility of these architectures as DNA-sensing devices, a thiolated capture probe sequence from Helicobacter pylori was immobilized onto the as-prepared surface. This sequence was chosen as a case of study within the framework of developing approaches of wide applicability. The hybridization event is detected using a water-soluble pentaamin ruthenium [3-(2-phenanthren-9-yl-vinyl)-pyridine] complex (Ru(NH(3))(5)L) prepared "in situ". This complex, due to its intercalative character, is able to bind to double stranded DNA more efficiently than to single stranded DNA. In addition, the metal provides with a redox center that can be used as an electrochemical indicator. On the basis of this strategy, complementary target sequences of H. pylori have been detected over the range of 40-800 pmol with a detection limit of 25+/-2 pmol.
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Affiliation(s)
- T García
- Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
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25
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García T, Revenga-Parra M, Abruña HD, Pariente F, Lorenzo E. Single-mismatch position-sensitive detection of DNA based on a bifunctional ruthenium complex. Anal Chem 2007; 80:77-84. [PMID: 18031019 DOI: 10.1021/ac071095r] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A ruthenium complex, pentaamine ruthenium [3-(2-phenanthren-9-yl-vinyl)-pyridine] (which we refer to as RuL in the text) generated in situ has been used as a sensitive and selective electrochemical indicator in DNA sensing. The complex incorporates dual functionalities with the Ru center providing a redox probe and the ligand (L) providing a fluorescent tag. The presence of the aromatic groups in the ligand endows the complex with an intercalative character and makes it capable of binding to double-stranded DNA (dsDNA) more efficiently than to single-stranded DNA (ssDNA). Combining spectroscopic and electrochemical techniques, we have elucidated the nature of the interactions. From these data we conclude that the binding mode is fundamentally intercalative. The ligand-based fluorescence allows characterization of the complex formation as well as for melting experiments to be carried out. The metal-based redox center is employed as an electrochemical indicator to detect the hybridization event in a DNA biosensor. The biosensor has been developed by immobilization of a thiolated capture probe sequence from Helicobacter pylori onto gold electrodes. With the use of this approach, complementary target sequences of Helicobacter can be quantified over the range of 106 to 708 pmol with a detection limit of 92+/-0.4 pmol and a linear correlation coefficient of 0.995. In addition, this approach allows the detection, without the need for a hybridization suppressor in solution, such as formamide, of not only a single mismatch but also its position in a specific sequence of H. pylori, due to the selective interaction of this bifunctional ruthenium complex with dsDNA.
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Affiliation(s)
- T García
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid 28049, Spain
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26
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del Pozo MV, Alonso C, Pariente F, Lorenzo E. DNA biosensor for detection of Helicobacter pylori using phen-dione as the electrochemically active ligand in osmium complexes. Anal Chem 2007; 77:2550-7. [PMID: 15828792 DOI: 10.1021/ac0489263] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A surface-based method for the study of the interactions of DNA with redox-active 1,10-phenantroline-5,6-dione (phen-dione) osmium complexes is described. The study was carried out using gold electrodes modified with DNA via adsorption and [Os(bpy)(2)(phe-dione)](3+/2+) (bpy = 2,2'-bipyridyl) or [Os(phen)(2)(phen-dione)](3+/2+) (phen = 1,10-phenantroline) as electrochemical reported molecules. The method, which is simple and reagent-saving, allows the accumulation of osmium complexes within the DNA layer. The amount of osmium complex bound by the adsorbed layer of DNA was determined from the voltammetric charge associated with the osmium redox process of the immobilized metal complex. The quinone moiety of the phen-dione ligand was useful as an indicator for electrochemical DNA sensing because of its redox response at low potentials. A thiol-linked single-stranded Helicobacter pylori DNA probe was immobilized, through S-Au bonds on to a gold electrode (density of modification 86 pmol/cm(2)). Following hybridization with the complementary DNA sequence, the osmium complex was electrochemically accumulated within the double-stranded DNA layer. Electrochemical detection was performed by differential pulse voltammetry over the potential range where the quinone moiety was redox active (i.e., at very low potentials, -0.020 V vs SSCE); with this approach, a sequence of the H. pylori could be quantified over the range from 5 to 20 pmol with a linear correlation of r = 0.9888 and a detection limit of approximately 6 pmol.
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Affiliation(s)
- M V del Pozo
- Departamento de Química Analítica y Análisis Instrumental and Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid 28049, Spain
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27
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Piro B, Reisberg S, Noel V, Pham MC. Investigations of the steric effect on electrochemical transduction in a quinone-based DNA sensor. Biosens Bioelectron 2007; 22:3126-31. [PMID: 17363240 DOI: 10.1016/j.bios.2007.02.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2006] [Revised: 01/19/2007] [Accepted: 02/06/2007] [Indexed: 11/29/2022]
Abstract
Electrochemical biosensors for DNA hybridization are receiving increasing interest. A key point for their efficiency is to obtain a high signal level for low DNA concentration. This implies the design of an efficient transducing surface. Conducting polymers are interesting for this purpose but the great majority of conducting polymer-based electrodes present a signal decrease upon hybridization (a "signal-off" behavior), which impedes their response and makes them sensitive to false positive ones. The sensor described here presents a "signal-on" behavior, due to the use of a quinone group as the transducing agent. The specific aim of this work is to study the steric effect on transduction. To this end, the electrochemical response was monitored versus the DNA target length, for a constant DNA probe length. The results indicate that the current depends on the length of the double strand. A model which can explain the electrochemical behavior takes into account the steric hindrance of the ODN strands.
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Affiliation(s)
- B Piro
- Laboratoire Interfaces-Traitements-Organisation et Dynamique des Systèmes (ITODYS), Université Paris 7-Denis Diderot, associé au CNRS, UMR 7086, 1 rue Guy de la Brosse, 75005 Paris, France
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28
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Reisberg S, Piro B, Noel V, Pham MC. Selectivity and sensitivity of a reagentless electrochemical DNA sensor studied by square wave voltammetry and fluorescence. Bioelectrochemistry 2006; 69:172-9. [PMID: 16564234 DOI: 10.1016/j.bioelechem.2005.12.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2005] [Revised: 12/19/2005] [Accepted: 12/30/2005] [Indexed: 10/24/2022]
Abstract
Poly(5-hydroxy-1,4-naphthoquinone-co-5-hydroxy-3-thioacetic acid-1,4-naphthoquinone)-modified electrode is used for the direct electrochemical detection of oligonucleotide hybridization. The polymer film presents well-defined electroactivity in the cathodic potential domain (between 0 and -0.8 V/SCE), due to the quinone group embedded into the polymer structure. The detection can be performed simply by square wave voltammetry. This sensor is a "signal-on" device and works with different oligonucleotide lengths, from 10 to 30 bases. Quantitative results from fluorescence are consistent with electrochemical data. It is confirmed that the signal increase in square wave voltammetry is unambiguously due to hybridization. The biosensor presents a detection limit of target of ca. 25 nM and is highly selective as it can discriminate single mismatch base.
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Affiliation(s)
- Steeve Reisberg
- Laboratoire Interfaces-Traitements-Organisation et Dynamique des Systèmes (ITODYS), Université Paris 7-Denis Diderot, associé au CNRS, UMR 7086, 1, rue Guy de la Brosse, 75005 Paris, France
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29
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Arora K, Chand S, Malhotra BD. Recent developments in bio-molecular electronics techniques for food pathogens. Anal Chim Acta 2006; 568:259-74. [PMID: 17761267 DOI: 10.1016/j.aca.2006.03.078] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2005] [Revised: 03/20/2006] [Accepted: 03/23/2006] [Indexed: 01/26/2023]
Abstract
Food borne illnesses contribute to the majority of infections caused by pathogenic microorganisms. Detection of these pathogens originating from different sources has led to increased interest of researchers. New bio-molecular techniques for food pathogen detection are being developed to improve the sensor characteristics such as sensitivity, reusability, simplicity and economic viability. Present article deals with the various methods of food pathogen detection with special emphasis on bio-molecular electronics techniques such as biosensors, microarrays, electronic nose, and nano-materials based methods.
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Affiliation(s)
- Kavita Arora
- Biomolecular Electronics and Conducting Polymer Research Group, National Physical Laboratory, K.S. Krishnan Road, New Delhi 110012, India.
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30
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Amperometric DNA-Peroxidase Sensor for the Detection of Pharmaceutical Preparations. SENSORS 2005. [DOI: 10.3390/s5060364] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Control of Chloride Ion Exchange by DNA Hybridization at Polypyrrole Electrode. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s1871-0069(05)01009-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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