51
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Din Sheikh MU, Naikoo GA, Thomas M, Bano M, Ahirwar D, Pandit UJ, Khan F. Fabrication of hierarchically mesoporous CuO nanostructures and their role as heterogenous catalysts and sensors. RSC Adv 2016. [DOI: 10.1039/c6ra07307g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Tween-80 templated mesoporous CuO (mpCuO) nanostructures were explored via a facile, environmentally friendly and scalable sol–gel route for heterogeneous catalysis and sensor technology.
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Affiliation(s)
- Mehraj Ud Din Sheikh
- Nanomaterials Discovery Laboratory
- Department of Chemistry
- Dr Harisingh Gour Central University
- Sagar
- India
| | - Gowhar Ahmad Naikoo
- Nanomaterials Discovery Laboratory
- Department of Chemistry
- Dr Harisingh Gour Central University
- Sagar
- India
| | - Molly Thomas
- Nanomaterials Discovery Laboratory
- Department of Chemistry
- Dr Harisingh Gour Central University
- Sagar
- India
| | - Mustri Bano
- Nanomaterials Discovery Laboratory
- Department of Chemistry
- Dr Harisingh Gour Central University
- Sagar
- India
| | - Devendra Ahirwar
- Nanomaterials Discovery Laboratory
- Department of Chemistry
- Dr Harisingh Gour Central University
- Sagar
- India
| | - Umar Jan Pandit
- Electroanalytical Laboratory
- Department of Chemistry
- Dr Harisingh Gour University
- Sagar
- India
| | - Farid Khan
- Nanomaterials Discovery Laboratory
- Department of Chemistry
- Dr Harisingh Gour Central University
- Sagar
- India
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52
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A sensitive electrochemical DNA biosensor for antineoplastic drug 5-fluorouracil based on glassy carbon electrode modified with poly(bromocresol purple). Talanta 2015; 144:793-800. [DOI: 10.1016/j.talanta.2015.06.077] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 06/22/2015] [Accepted: 06/26/2015] [Indexed: 01/26/2023]
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53
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Rasappa S, Ghoshal T, Borah D, Senthamaraikannan R, Holmes JD, Morris MA. A Highly Efficient Sensor Platform Using Simply Manufactured Nanodot Patterned Substrates. Sci Rep 2015; 5:13270. [PMID: 26290188 PMCID: PMC4542519 DOI: 10.1038/srep13270] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 07/20/2015] [Indexed: 11/27/2022] Open
Abstract
Block copolymer (BCP) self-assembly is a low-cost means to nanopattern surfaces. Here, we use these nanopatterns to directly print arrays of nanodots onto a conducting substrate (Indium Tin Oxide (ITO) coated glass) for application as an electrochemical sensor for ethanol (EtOH) and hydrogen peroxide (H2O2) detection. The work demonstrates that BCP systems can be used as a highly efficient, flexible methodology for creating functional surfaces of materials. Highly dense iron oxide nanodots arrays that mimicked the original BCP pattern were prepared by an ‘insitu’ BCP inclusion methodology using poly(styrene)-block-poly(ethylene oxide) (PS-b-PEO). The electrochemical behaviour of these densely packed arrays of iron oxide nanodots fabricated by two different molecular weight PS-b-PEO systems was studied. The dual detection of EtOH and H2O2 was clearly observed. The as-prepared nanodots have good long term thermal and chemical stability at the substrate and demonstrate promising electrocatalytic performance.
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Affiliation(s)
- Sozaraj Rasappa
- Materials Research Group, Department of Chemistry and Tyndall National Institute, University College Cork, Cork, Ireland.,Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Tandra Ghoshal
- Materials Research Group, Department of Chemistry and Tyndall National Institute, University College Cork, Cork, Ireland.,Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Dipu Borah
- Materials Research Group, Department of Chemistry and Tyndall National Institute, University College Cork, Cork, Ireland.,Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Ramsankar Senthamaraikannan
- Materials Research Group, Department of Chemistry and Tyndall National Institute, University College Cork, Cork, Ireland.,Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Justin D Holmes
- Materials Research Group, Department of Chemistry and Tyndall National Institute, University College Cork, Cork, Ireland.,Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Michael A Morris
- Materials Research Group, Department of Chemistry and Tyndall National Institute, University College Cork, Cork, Ireland.,Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland.,AMBER (Advanced Material and Bio-Engineering Research Centre), Trinity College Dublin, Dublin-2, Ireland
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54
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Highly Sensitive and Selective Detection of Dopamine at Poly(chromotrope 2B)-Modified Glassy Carbon Electrode in the Presence of Uric Acid and Ascorbic Acid. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.05.062] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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55
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Parvin MH. Simultaneous Determination of Ascorbic Acid, Dopamine and Uric Acid, at a Graphene Paste Electrode Modified with Functionalized Graphene Sheets. ELECTROANAL 2015. [DOI: 10.1002/elan.201400702] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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56
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Imran H, Manikandan PN, Dharuman V. Facile and green synthesis of graphene oxide by electrical exfoliation of pencil graphite and gold nanoparticle for non-enzymatic simultaneous sensing of ascorbic acid, dopamine and uric acid. RSC Adv 2015. [DOI: 10.1039/c5ra11723b] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pencil graphite is electrochemically exfoliated to gain few layered graphene oxide in HCl, NaOH and phosphate buffer saline without ionic liquid for the first time and used for simultaneous sensing of dopamine, ascorbic acid and uric acid in the presence of Au nanoparticles.
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Affiliation(s)
- Habibulla Imran
- Molecular Electronics Laboratory
- Department of Bioelectronics and Biosensors
- Science Campus
- Alagappa University
- Karaikudi - 630004
| | - Palinci Nagarajan Manikandan
- Molecular Electronics Laboratory
- Department of Bioelectronics and Biosensors
- Science Campus
- Alagappa University
- Karaikudi - 630004
| | - Venkataraman Dharuman
- Molecular Electronics Laboratory
- Department of Bioelectronics and Biosensors
- Science Campus
- Alagappa University
- Karaikudi - 630004
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57
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Yang YJ. One step electrosynthesis of polyacrylamide crosslinked by reduced graphene oxide and its application in the simultaneous determination of dopamine and uric acid. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.09.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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58
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Zhang H, Huang Q, Huang Y, Li F, Zhang W, Wei C, Chen J, Dai P, Huang L, Huang Z, Kang L, Hu S, Hao A. Graphitic carbon nitride nanosheets doped graphene oxide for electrochemical simultaneous determination of ascorbic acid, dopamine and uric acid. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.07.094] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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59
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Simultaneous determination of norepinephrine, acetaminophen and tyrosine by differential pulse voltammetry using Au-nanoparticles/poly(2-amino-2-hydroxymethyl-propane-1,3-diol) film modified glassy carbon electrode. Colloids Surf B Biointerfaces 2014; 123:23-32. [PMID: 25240479 DOI: 10.1016/j.colsurfb.2014.09.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Revised: 07/09/2014] [Accepted: 09/03/2014] [Indexed: 12/12/2022]
Abstract
A novel Au-nanoparticles/poly-(2-amino-2-hydroxymethyl-propane-1,3-diol) film modified glassy carbon electrode (AuNPs/poly(trisamine)/GCE) was constructed for the simultaneous determination of norepinephrine (NE), acetaminophen (AC) and L-tyrosine (Tyr) by differential pulse voltammetry. Electrochemical impedance spectroscopy and scanning electron microscopy indicate that the trisamine film was successfully polymerized on the surface of GCE and the film efficiently decreased the charge transfer resistance value of electrode and improved the electron transfer kinetic between analytes and electrode. The separation of the oxidation peak potentials for NE-AC and AC-Tyr were about 160 mV and 240 mV, respectively. The calibration curves for NE, AC and Tyr were obtained in the range of 1.3-230.1 μmol L(-1), 1.90-188.0 μmol L(-1), and 3.9-61.8 μmol L(-1), respectively. The detection limits (S/N=3) were 0.07 μmol L(-1), 0.1 μmol L(-1) and 0.9 μmol L(-1), for NE, AC and Tyr, respectively. The diffusion coefficient and the catalytic rate constant for the oxidation reaction of NE at AuNPs/poly(trisamine)/GCE were calculated as 1.55 (±0.2)×10(-6) cm2 s(-1) and 2.28 (±0.17)×10(3) mol(-1) L s(-1), respectively. Finally, AuNPs/poly(trisamine)/GCE was satisfactorily used for the determination of NE, AC, and Tyr in pharmaceutical and biological samples.
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60
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Liu X, Ou X, Lu Q, Zhang J, Chen S, Wei S. Electrochemical sensor based on overoxidized dopamine polymer and 3,4,9,10-perylenetetracarboxylic acid for simultaneous determination of ascorbic acid, dopamine, uric acid, xanthine and hypoxanthine. RSC Adv 2014. [DOI: 10.1039/c4ra05853d] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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61
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Photoelectrocatalytic oxidation of uric acid on a novel ruthenium(II) polypyridyl complex modified ZnO electrode for photo-stimulated fuel cells. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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62
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Hematite nanoparticles-modified electrode based electrochemical sensing platform for dopamine. ScientificWorldJournal 2014; 2014:396135. [PMID: 25136664 PMCID: PMC4130303 DOI: 10.1155/2014/396135] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/18/2014] [Accepted: 06/26/2014] [Indexed: 11/17/2022] Open
Abstract
Hematite (α-Fe2O3) nanoparticles were synthesized by the solid transformation of ferrous hydroxide and ferrihydrite in hydrothermal condition. The as-prepared α-Fe2O3 nanoparticles were characterized by UV-vis, PL, XRD, Raman, TEM, AFM, FESEM, and EDX analysis. The experimental results indicated the formation of uniform hematite nanoparticles with an average size of 45 nm and perfect crystallinity. The electrochemical behavior of a GC/α-Fe2O3 electrode was studied using CV and EIS techniques with an electrochemical probe, [Fe(CN)6](3-/4-) redox couple. The electrocatalytic activity was investigated toward DA oxidation in a phosphate buffer solution (pH 6.8) by varying different experimental parameters. The chronoamperometric study showed a linear response in the range of 0-2 μM with LoD of 1.6 μM for DA. Square wave voltammetry showed a linear response in the range of 0-35 μM with LoD of 236 nM for DA.
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63
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Synergistic electrocatalytic effect of graphene/nickel hydroxide composite for the simultaneous electrochemical determination of ascorbic acid, dopamine and uric acid. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.04.027] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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64
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Liu X, Zhang L, Wei S, Chen S, Ou X, Lu Q. Overoxidized polyimidazole/graphene oxide copolymer modified electrode for the simultaneous determination of ascorbic acid, dopamine, uric acid, guanine and adenine. Biosens Bioelectron 2014; 57:232-8. [DOI: 10.1016/j.bios.2014.02.017] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 02/06/2014] [Accepted: 02/09/2014] [Indexed: 11/25/2022]
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65
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CTAB functionalized graphene oxide/multiwalled carbon nanotube composite modified electrode for the simultaneous determination of ascorbic acid, dopamine, uric acid and nitrite. Biosens Bioelectron 2014; 56:300-6. [DOI: 10.1016/j.bios.2014.01.037] [Citation(s) in RCA: 223] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 01/19/2014] [Accepted: 01/20/2014] [Indexed: 10/25/2022]
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66
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Liu X, Wei S, Chen S, Yuan D, Zhang W. Graphene-Multiwall Carbon Nanotube-Gold Nanocluster Composites Modified Electrode for the Simultaneous Determination of Ascorbic Acid, Dopamine, and Uric Acid. Appl Biochem Biotechnol 2014; 173:1717-26. [DOI: 10.1007/s12010-014-0959-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 05/13/2014] [Indexed: 10/25/2022]
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67
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Sieradzka E, Witt K, Milnerowicz H. The application of capillary electrophoresis techniques in toxicological analysis. Biomed Chromatogr 2014; 28:1507-13. [PMID: 24828301 DOI: 10.1002/bmc.3234] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 03/25/2014] [Accepted: 04/04/2014] [Indexed: 12/17/2022]
Abstract
Capillary electrophoresis (CE) comprises a group of techniques used to separate chemical mixtures. Analytical separation is based on different electrophoretic mobilities, thereby allowing qualitative and quantitative evaluations to be made. The application of CE in medical science, especially in toxicological studies, is developing rapidly because of the short time required for analysis and its high sensitivity, selectivity and ability to determine substances of an acidic, alkaline and neutral character. This review focuses on the possibility of applying CE in toxicological analysis. Advances in different CE analyses and detection techniques connected with this method are described.
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Affiliation(s)
- Ewelina Sieradzka
- Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Poland
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68
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Kamel MM, Abdalla EM, Ibrahim MS, Temerk YM. Electrochemical studies of ascorbic acid, dopamine, and uric acid at a dl-norvaline-deposited glassy carbon electrode. CAN J CHEM 2014. [DOI: 10.1139/cjc-2014-0024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The electrochemical behavior of ascorbic acid (AA), dopamine (DA), and uric acid (UA) on a dl-norvaline-modified glassy carbon electrode (GCE) was studied by cyclic voltammetry. The bare GCE failed to distinguish the oxidation peaks of AA, DA, and UA in phosphate-buffered solution (pH 5.0), while the dl-norvaline-modified GCE could separate them efficiently. In differential pulse voltammetric (DPV) measurements, the modified electrode resolved the overlapped voltammetric responses of AA, DA, and UA into three well-defined voltammetric peaks. Under optimum conditions, the anodic peak currents of DPV for AA, DA, and UA were proportional to the concentration in the range of 20–400, 1–40, and 15–180 μmol/L, respectively, with a correlation coefficient (r) of around 0.998. The detection limits were 5, 0.3, and 10 μmol/L (S/N = 3) for AA, DA, and UA, respectively. Satisfactory results were achieved for the determination of AA in vitamin C tablets, DA in a dopamine ampoule sample, and UA in human blood serum samples.
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69
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Raghu P, Reddy TM, Gopal P, Reddaiah K, Sreedhar N. A novel horseradish peroxidase biosensor towards the detection of dopamine: A voltammetric study. Enzyme Microb Technol 2014; 57:8-15. [DOI: 10.1016/j.enzmictec.2014.01.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 01/02/2014] [Accepted: 01/04/2014] [Indexed: 11/30/2022]
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70
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Mary Nancy T, Anithakumary V, Kumara Swamy B. Solar graphene modified glassy carbon electrode for the voltammetric resolution and detection of dopamine, ascorbic acid and uric acid. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.03.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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71
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Iswantini D, Nurhidayat N, Widiyatmoko O. Activity and stability of uricase from Lactobacillus plantarum immobilizated on natural zeolite for uric acid biosensor. Pak J Biol Sci 2014; 17:277-281. [PMID: 24783814 DOI: 10.3923/pjbs.2014.277.281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Determination of uric acid concentration in human urine and blood is needed to diagnose several diseases, especially the occurrence of kidney disease in gout patients. Therefore, it is needed to develop a simple and inexpensive method for uric acid detection. The purpose of the research was to observe the use of Indonesian microbe that was immobilized on natural zeolite as a source of uricase for uric acid biosensor. Selection of mediators and determination of optimum condition measurement, the stability and kinetic properties of L. plantarum uricase were performed using carbon paste electrode. Cyclic voltammetry was employed to investigate the catalytic behavior of the biosensor. The result indicated that the best mediator for measurement of L. plantarum uricase activity was Qo (2,3-dimethoxy-5-methyl-1,4 benzoquinone). Optimum conditions for immobilization of L. plantarum uricase on zeolite were obtained at pH 7.6, with temperature of 28 degrees C, using uric acid concentration of 0.015 mM and zeolite mass at 135 mg K(M) and V(Max) of L. plantarum uricase obtained from Lineweaver-burk equation for the immobilization uricase on zeolite were 8.6728 x 10(-4) mM and 6.3052 mM, respectively. K(M) value of L. plantarum uricase directly immobilized onto the electrode surface was smaller than K(M) value of L. plantarum uricase immobilized on zeolite. The smaller K(M) value shows the higher affinity toward the substrate. The Electrode when kept at 10 degrees C was stable until 6 days, however the immobilized electrode on zeolite was stable until 18 days. Therefore, Indonesian L. plantarum could be used as a uric acid biosensor.
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72
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Li W, Ding L, Wang Q, Su B. Differential pulse voltammetry detection of dopamine and ascorbic acid by permselective silica mesochannels vertically attached to the electrode surface. Analyst 2014; 139:3926-31. [DOI: 10.1039/c4an00605d] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silica mesochannels vertically aligned on the electrode surface have been employed for permselective detection of dopamine and ascorbic acid.
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Affiliation(s)
- Wanzhen Li
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058, China
| | - Longhua Ding
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058, China
| | - Qiaohong Wang
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058, China
| | - Bin Su
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058, China
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73
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Highly selective determination of ascorbic acid, epinephrine, and uric acid by differential pulse voltammetry using poly(Adizol Black B)-modified glassy carbon electrode. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2304-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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74
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Wang L, Liao X, Ding Y, Gao F, Wang Q. DNA biosensor based on a glassy carbon electrode modified with electropolymerized Eriochrome Black T. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1085-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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75
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Wang T, Li S, Jia M, Guo C, Hu J. A seed-mediated growth process for the fabrication of a novel gold nanoparticles-attached NH2+ ions implantation-modified indium tin oxide electrode and its electrocatalytic activity. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.05.052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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76
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Rostami A, Omrani A, Hamedian N. Flower-like morphology of poly(m-aminobenzoic acid) deposited at GC surface in the presence of silica nanoparticles: electropolymerization and characterization. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-1063-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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77
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A sensitive sensor for determination of l-tryptophan based on gold nanoparticles/poly(alizarin red S)-modified glassy carbon electrode. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2152-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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78
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Reddaiah K, Reddy MM, Raghu P, Reddy TM. An electrochemical sensor based on poly (solochrome dark blue) film coated electrode for the determination of dopamine and simultaneous separation in the presence of uric acid and ascorbic acid: A voltammetric method. Colloids Surf B Biointerfaces 2013; 106:145-50. [DOI: 10.1016/j.colsurfb.2013.01.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Accepted: 01/02/2013] [Indexed: 10/27/2022]
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79
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Wei Y, Luo L, Ding Y, Liu X, Chu Y. A glassy carbon electrode modified with poly(eriochrome black T) for sensitive determination of adenine and guanine. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1007-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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80
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Raghu P, Madhusudana Reddy T, Reddaiah K, Jaidev L, Narasimha G. A novel electrochemical biosensor based on horseradish peroxidase immobilized on Ag-nanoparticles/poly(l-arginine) modified carbon paste electrode toward the determination of pyrogallol/hydroquinone. Enzyme Microb Technol 2013; 52:377-85. [DOI: 10.1016/j.enzmictec.2013.02.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 02/21/2013] [Accepted: 02/24/2013] [Indexed: 11/17/2022]
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81
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Electrocatalytic determination of dopamine in the presence of uric acid using an indenedione derivative and multiwall carbon nanotubes spiked in carbon paste electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1491-7. [DOI: 10.1016/j.msec.2012.12.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2011] [Revised: 10/04/2012] [Accepted: 12/17/2012] [Indexed: 11/23/2022]
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82
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83
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Shi P, Miao X, Yao H, Lin S, Wei B, Chen J, Lin X, Tang Y. Characterization of poly(5-hydroxytryptamine)-modified glassy carbon electrode and applications to sensing of norepinephrine and uric acid in preparations and human urines. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.01.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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84
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Oliveira AX, Silva SM, Leite FRF, Kubota LT, Damos FS, de Cássia Silva Luz R. Highly Sensitive and Selective Basal Plane Pyrolytic Graphite Electrode Modified with 1,4-Naphthoquinone/MWCNT for Simultaneous Determination of Dopamine, Ascorbate and Urate. ELECTROANAL 2013. [DOI: 10.1002/elan.201200515] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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85
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Rasappa S, Borah D, Faulkner CC, Lutz T, Shaw MT, Holmes JD, Morris MA. Fabrication of a sub-10 nm silicon nanowire based ethanol sensor using block copolymer lithography. NANOTECHNOLOGY 2013; 24:065503. [PMID: 23340158 DOI: 10.1088/0957-4484/24/6/065503] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper details the fabrication of ultrathin silicon nanowires (SiNWs) on a silicon-on-insulator (SOI) substrate as an electrode for the electro-oxidation and sensing of ethanol. The nanowire surfaces were prepared by a block copolymer (BCP) nanolithographic technique using low molecular weight symmetric poly(styrene)-block-poly(methyl methacrylate) (PS-b-PMMA) to create a nanopattern which was transferred to the substrate using plasma etching. The BCP orientation was controlled using a hydroxyl-terminated random polymer brush of poly(styrene)-random-poly(methyl methacrylate) (HO-PS-r-PMMA). TEM cross-sections of the resultant SiNWs indicate an anisotropic etch process with nanowires of sub-10 nm feature size. The SiNWs obtained by etching show high crystallinity and there is no evidence of defect inclusion or amorphous region production as a result of the pattern transfer process. The high density of SiNWs at the substrate surface allowed the fabrication of a sensor for cyclic voltammetric detection of ethanol. The sensor shows better sensitivity to ethanol and a faster response time compared to widely used polymer nanocomposite based sensors.
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Affiliation(s)
- Sozaraj Rasappa
- Materials Chemistry Section, Department of Chemistry, University College Cork, College Road, Cork, Ireland
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86
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Mattos AB, Freitas TA, Kubota LT, Dutra RF. An o-aminobenzoic acid film-based immunoelectrode for detection of the cardiac troponin T in human serum. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2012.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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87
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Zhang L, Yuan WJ, Hou BQ. Nano-Cu/PSA III modified glassy carbon electrode for simultaneous determination of ascorbic acid, dopamine and uric acid. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2012.11.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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88
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Simultaneous electrochemical determination of ascorbic acid, dopamine and uric acid using poly (tyrosine)/functionalized multi-walled carbon nanotubes composite film modified electrode. J Mol Liq 2013. [DOI: 10.1016/j.molliq.2012.10.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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89
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Sodium do-decyl benzene sulfate modified carbon paste electrode as an electrochemical sensor for the simultaneous analysis of dopamine, ascorbic acid and uric acid: A voltammetric study. J Mol Liq 2013. [DOI: 10.1016/j.molliq.2012.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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90
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Taghdiri M, Mohamadipour-Taziyan A. Application of Sephadex LH-20 for Microdetermination of Dopamine by Solid Phase Spectrophotometry. ISRN PHARMACEUTICS 2012; 2012:216068. [PMID: 23251822 PMCID: PMC3515891 DOI: 10.5402/2012/216068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 11/07/2012] [Indexed: 11/23/2022]
Abstract
A sensitive spectrophotometric method for the determination of dopamine was carried out without any separation steps. Bromocresol green is adsorbed on Sephadex LH-20 gel but the sorption decreases in the presence of dopamine due to ion-pair formation between bromocresol green and dopamine in solution. This attenuation was used to the microdetermination of dopamine by measurement of absorbance of the solid phase (Sephadex LH-20 gel) in a 1.0 mm cell at 625 nm. Dopamine could be determined in the concentration range of 0.4–1.6 μg mL−1 (10-mL Sample volume) with a relative standard deviation (RSD) of 0.03% (n = 4). The detection limit was obtained, 0.26 μg mL−1 (1.7 μM). The method was used for determination of dopamine in pharmaceutical injection sample and satisfactory result was obtained.
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Affiliation(s)
- Mehdi Taghdiri
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
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91
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Wu GH, Wu YF, Liu XW, Rong MC, Chen XM, Chen X. An electrochemical ascorbic acid sensor based on palladium nanoparticles supported on graphene oxide. Anal Chim Acta 2012; 745:33-7. [DOI: 10.1016/j.aca.2012.07.034] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 07/09/2012] [Accepted: 07/17/2012] [Indexed: 10/28/2022]
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92
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Simultaneous determination of L-cysteine and L-tyrosine using Au-nanoparticles/poly-eriochrome black T film modified glassy carbon electrode. Bioelectrochemistry 2012; 86:38-45. [DOI: 10.1016/j.bioelechem.2012.01.008] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 01/12/2012] [Accepted: 01/14/2012] [Indexed: 11/24/2022]
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93
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Simultaneous determination of ascorbic acid, dopamine, uric acid and tryptophan on gold nanoparticles/overoxidized-polyimidazole composite modified glassy carbon electrode. Anal Chim Acta 2012; 741:15-20. [PMID: 22840700 DOI: 10.1016/j.aca.2012.06.045] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 06/18/2012] [Accepted: 06/19/2012] [Indexed: 11/21/2022]
Abstract
A novel electrode was developed through electrodepositing gold nanoparticles (GNPs) on overoxidized-polyimidazole (PImox) film modified glassy carbon electrode (GCE). The combination of GNPs and the PImox film endowed the GNPs/PImox/GCE with good biological compatibility, high selectivity and sensitivity and excellent electrochemical catalytic activities towards ascorbic acid (AA), dopamine (DA), uric acid (UA) and tryptophan (Trp). In the fourfold co-existence system, the peak separations between AA-DA, DA-UA and UA-Trp were large up to 186, 165 and 285 mV, respectively. The calibration curves for AA, DA and UA were obtained in the range of 210.0-1010.0 μM, 5.0-268.0 μM and 6.0-486.0 μM with detection limits (S/N=3) of 2.0 μM, 0.08 μM and 0.5 μM, respectively. Two linear calibrations for Trp were obtained over ranges of 3.0-34.0 μM and 84.0-464.0 μM with detection limit (S/N=3) of 0.7 μM. In addition, the modified electrode was applied to detect AA, DA, UA and Trp in samples using standard addition method with satisfactory results.
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94
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Henstridge MC, Dickinson EJF, Compton RG. Mass transport to and within porous electrodes. Linear sweep voltammetry and the effects of pore size: The prediction of double peaks for a single electrode process. RUSS J ELECTROCHEM+ 2012. [DOI: 10.1134/s1023193512060043] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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95
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Mülazımoğlu AD, Yılmaz E, Mülazımoğlu IE. Dithiooxamide modified glassy carbon electrode for the studies of non-aqueous media: electrochemical behaviors of quercetin on the electrode surface. SENSORS 2012; 12:3916-28. [PMID: 22666010 PMCID: PMC3355391 DOI: 10.3390/s120403916] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 03/13/2012] [Accepted: 03/14/2012] [Indexed: 11/16/2022]
Abstract
Electrochemical oxidation of quercetin, as an important biological molecule, has been studied in non-aqueous media using cyclic voltammetry, electrochemical impedance spectroscopy and scanning electron microscopy. To investigate the electrochemical properties of quercetin, an important flavonoid derivative, on a different surface, a new glassy carbon electrode has been developed using dithiooxamide as modifier in non-aqueous media. The surface modification of glassy carbon electrode has been performed within the 0.0 mV and +800 mV potential range with 20 cycles using 1 mM dithioxamide solution in acetonitrile. However, the modification of quercetin to both bare glassy carbon and dithiooxamide modified glassy carbon electrode surface was carried out in a wide +300 mV and +2,800 mV potential range with 10 cycles. Following the modification process, cyclic voltammetry has been used for the surface characterization in aqueous and non-aqueous media whereas electrochemical impedance spectroscopy has been used in aqueous media. Scanning electron microscopy has also been used to support the surface analysis. The obtained data from the characterization and modification studies of dithioxamide modified and quercetin grafted glassy carbon electrode showed that the developed electrode can be used for the quantitative determination of quercetin and antioxidant capacity determination as a chemical sensor electrode.
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Affiliation(s)
- Ayşen Demir Mülazımoğlu
- Department of Chemistry, Ahmet Keleşoğlu Education Faculty, Konya University, 42099 Konya, Turkey.
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96
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Breczko J, Plonska-Brzezinska ME, Echegoyen L. Electrochemical oxidation and determination of dopamine in the presence of uric and ascorbic acids using a carbon nano-onion and poly(diallyldimethylammonium chloride) composite. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.177] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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97
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Mülazımoğlu AD, Mülazımoğlu İE. Electrochemical Properties of MDA/GC Electrode and Investigation of Usability as Sensor Electrode for Determination of Que, Kae, Lut and Gal Using CV, DPV and SWV. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9426-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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98
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Tian X, Cheng C, Yuan H, Du J, Xiao D, Xie S, Choi MM. Simultaneous determination of l-ascorbic acid, dopamine and uric acid with gold nanoparticles–β-cyclodextrin–graphene-modified electrode by square wave voltammetry. Talanta 2012; 93:79-85. [DOI: 10.1016/j.talanta.2012.01.047] [Citation(s) in RCA: 195] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2011] [Revised: 01/20/2012] [Accepted: 01/29/2012] [Indexed: 11/25/2022]
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99
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Electrochemical biosensor for detection of PML/RARα fusion gene based on eriochrome cyanine R film modified glassy carbon electrode. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.02.065] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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100
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Glassy carbon electrode modified with poly(dibromofluorescein) for the selective determination of dopamine and uric acid in the presence of ascorbic acid. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0821-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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