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Electrochemical synthesis and properties of polyporphyrin films based on 5,10,15,20-tetra(4-pyridyl)porphyrin. MENDELEEV COMMUNICATIONS 2023. [DOI: 10.1016/j.mencom.2023.01.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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2
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Wu WT, Chen X, Jiao YT, Fan WT, Liu YL, Huang WH. Versatile Construction of Biomimetic Nanosensors for Electrochemical Monitoring of Intracellular Glutathione. Angew Chem Int Ed Engl 2022; 61:e202115820. [PMID: 35134265 DOI: 10.1002/anie.202115820] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Indexed: 11/08/2022]
Abstract
The current strategies for nanoelectrode functionalization usually involve sophisticated modification procedures, uncontrollable and unstable modifier assembly, as well as a limited variety of modifiers. To address this issue, we propose a versatile strategy for large-scale synthesis of biomimetic molecular catalysts (BMCs) modified nanowires (NWs) to construct functionalized electrochemical nanosensors. This design protocol employs an easy, controllable and stable assembly of diverse BMCs-poly(3,4-ethylenedioxythiophene) (PEDOT) composites on conductive NWs. The intrinsic catalytic activity of BMCs combined with outstanding electron transfer ability of conductive polymer enables the nanosensors to sensitively and selectively detect various biomolecules. Further application of sulfonated cobalt phthalocyanine functionalized nanosensors achieves real-time electrochemical monitoring of intracellular glutathione levels and its redox homeostasis in single living cells for the first time.
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Affiliation(s)
- Wen-Tao Wu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Xi Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yu-Ting Jiao
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wen-Ting Fan
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yan-Ling Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wei-Hua Huang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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Wu W, Chen X, Jiao Y, Fan W, Liu Y, Huang W. Versatile Construction of Biomimetic Nanosensors for Electrochemical Monitoring of Intracellular Glutathione. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wen‐Tao Wu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Xi Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yu‐Ting Jiao
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Wen‐Ting Fan
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yan‐Ling Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Wei‐Hua Huang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
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Tesakova MV, Parfenyuk VI. Electrochemical Synthesis of Conducting Polyporphyrin Films based on 5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2021. [DOI: 10.3103/s1068375521010129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Meier J, Stapleton J, Hofferber E, Haworth A, Kachman S, Iverson NM. Quantification of Nitric Oxide Concentration Using Single-Walled Carbon Nanotube Sensors. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:243. [PMID: 33477618 PMCID: PMC7831316 DOI: 10.3390/nano11010243] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 11/26/2022]
Abstract
Nitric oxide (NO), a free radical present in biological systems, can have many detrimental effects on the body, from inflammation to cancer. Due to NO's short half-life, detection and quantification is difficult. The inability to quantify NO has hindered researchers' understanding of its impact in healthy and diseased conditions. Single-walled carbon nanotubes (SWNTs), when wrapped in a specific single-stranded DNA chain, becomes selective to NO, creating a fluorescence sensor. Unfortunately, the correlation between NO concentration and the SWNT's fluorescence intensity has been difficult to determine due to an inability to immobilize the sensor without altering its properties. Through the use of a recently developed sensor platform, systematic studies can now be conducted to determine the correlation between SWNT fluorescence and NO concentration. This paper explains the methods used to determine the equations that can be used to convert SWNT fluorescence into NO concentration. Through the use of the equations developed in this paper, an easy method for NO quantification is provided. The methods outlined in this paper will also enable researchers to develop equations to determine the concentration of other reactive species through the use of SWNT sensors.
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Affiliation(s)
- Jakob Meier
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583, USA; (J.M.); (J.S.); (E.H.); (A.H.)
| | - Joseph Stapleton
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583, USA; (J.M.); (J.S.); (E.H.); (A.H.)
| | - Eric Hofferber
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583, USA; (J.M.); (J.S.); (E.H.); (A.H.)
| | - Abigail Haworth
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583, USA; (J.M.); (J.S.); (E.H.); (A.H.)
| | - Stephen Kachman
- Department of Statistics, University of Nebraska-Lincoln, Lincoln, NE 68583, USA;
| | - Nicole M. Iverson
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583, USA; (J.M.); (J.S.); (E.H.); (A.H.)
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6
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Kuzmin SM, Chulovskaya SA, Parfenyuk VI. Effect of substituent structure on formation and properties of poly-hydroxyphenyl porphyrin films obtained by superoxide-assisted method. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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7
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Tesakova MV, Kuzmin SM, Parfenyuk VI. An electrochemical quartz crystal microbalance study of 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin electropolymerization process. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424619501657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The process of 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin electropolymerization has been studied by the quartz crystal microbalance method in different electrodeposition conditions. The films were deposited in two modes: in potentiostatic conditions (at the potential of [Formula: see text]2 V) and in potentiodynamic conditions (CV with the potential scan rate of 20 mV/s). The effect of electrolysis parameters on 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin electropolymerization has been studied by obtaining films in two modes and using two supporting electrolytes: tetrabutylammonium perchlorate or tetrabutylammonium hexafluorophosphate. The biggest film mass gain was observed on a clean electrode surface. At further film deposition on the polyporphyrin-coated electrode, the film mass growth stopped. The electrodeposition effectiveness was somewhat higher in the potentiodynamic conditions, with the formation of a looser film. The nature of the supporting electrolyte did not have a significant effect on the electrodeposition process. A significant contribution to the deposition was made by the electrode material. The film thickness was 25–80 nm. The films possessed [Formula: see text]-type conductivity; and the flat-band potential for poly-H[Formula: see text]T(4-OHPh)P obtained in potentiodynamic conditions was 0.33 V, for poly-H[Formula: see text]T(4-OHPh)P obtained in potentiostatic conditions it was 0.16 V.
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Affiliation(s)
- Mariya V. Tesakova
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo, 153045, Russia
| | - Sergey M. Kuzmin
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo, 153045, Russia
- Ivanovo State Power Engineering University, Rabfakovskaya St., 34, Ivanovo, 153003, Russia
| | - Vladimir I. Parfenyuk
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo, 153045, Russia
- Ivanovo State University of Chemistry and Technology, Sheremetevsky Prospekt, 7, Ivanovo, 153000, Russia
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8
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Tesakova MV, Lutovac M, Parfenyuk VI. Electrodeposition of catalytically active polyporphyrin films of metal complexes of amino-substituted tetraphenylporphyrins. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s108842461850102x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The process of electrodeposition of polyporphyrin films based on amino-substituted tetraphenylporphyrins and their metal complexes (CuT([Formula: see text]-NH[Formula: see text]Ph)P, FeClT([Formula: see text]-NH[Formula: see text]Ph)P, MnClT([Formula: see text]-NH[Formula: see text]Ph)P) has been studied by the quartz crystal microbalance method. The surfaces of the films have been characterized by the scanning electron microscopy method and the number of electrons taking part in porphyrin electropolymerization has been determined. It has been established that the most intensive film growth is observed for the metal-free porphyrin ligand. The obtained polyporphyrin films have been analyzed for the catalytic ability in oxygen electroreduction reactions.
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Affiliation(s)
- Mariya V. Tesakova
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo, 153045, Russia
| | - Mitar Lutovac
- University Union Nicola Tesla, Bulevar Kralja Aleksandra, 73, Centralna Srbija, Grad Beograd, Belgrade, Serbia
| | - Vladimir I. Parfenyuk
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo, 153045, Russia
- Ivanovo State University of Chemistry and Technology, Sheremetevsky Avenue 7, Ivanovo, 153000, Russia
- Kostroma State University, Dzerzhinsky St., 17, Kostroma, 156005, Russia
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Madhurantakam S, Babu KJ, Rayappan JBB, Krishnan UM. Nanotechnology-based electrochemical detection strategies for hypertension markers. Biosens Bioelectron 2018; 116:67-80. [DOI: 10.1016/j.bios.2018.05.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/18/2018] [Accepted: 05/21/2018] [Indexed: 12/15/2022]
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10
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Brown MD, Schoenfisch MH. Catalytic selectivity of metallophthalocyanines for electrochemical nitric oxide sensing. Electrochim Acta 2018; 273:98-104. [PMID: 30739948 PMCID: PMC6366661 DOI: 10.1016/j.electacta.2018.03.139] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The catalytic properties of metallophthalocyanine (MPc) complexes have long been applied to electrochemical sensing of nitric oxide (NO) to amplify sensitivity and reduce the substantial overpotential required for NO oxidation. The latter point has significant ramifications for in situ amperometric detection, as large working potentials oxidize biological interferents (e.g., nitrite, L-ascorbate, and carbon monoxide). Herein, we sought to isolate and quantify, for the first time, the selectivity benefits of MPc modification of glassy carbon electrodes. A series of the most catalytically active MPc complexes towards NO, including Fe(II)Pc, Co(II)Pc, Ni(II)Pc, and Zn(II)Pc, was selected and probed for NO sensing ability under both differential pulse voltammetry (DPV) and constant potential amperometry (CPA). Data from DPV measurements provided information with respect to MPc signal sensitivity amplification (~1.5×) and peak shifting (100-200 mV). Iron-Pc exerted the most specific catalytic activity towards NO over nitrite. Catalyst-enabled reduction of the working potential under CPA was found to improve selectivity for NO over high potential interferents, regardless of MPc. However, impaired selectivity against low potential interferents was also noted.
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Affiliation(s)
- Micah D. Brown
- Department of Chemistry, University of North Carolina at Chapel Hill, CB 3290, Chapel Hill, NC, 27599, USA
| | - Mark H. Schoenfisch
- Department of Chemistry, University of North Carolina at Chapel Hill, CB 3290, Chapel Hill, NC, 27599, USA
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11
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Dumitrescu E, Wallace KN, Andreescu S. Real time electrochemical investigation of the release, distribution and modulation of nitric oxide in the intestine of individual zebrafish embryos. Nitric Oxide 2018; 74:32-38. [DOI: 10.1016/j.niox.2018.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/03/2018] [Accepted: 01/10/2018] [Indexed: 12/16/2022]
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12
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Tesakova MV, Semeikin AS, Parfenyuk VI. Electroconductive films based on amino-substituted tetraphenylporphyrins and their metal copper complexes. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s1088424616500930] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Amino-substituted tetraphenylporphyrins (5,10,15,20-tetrakis(4′-aminophenyl)porphyrin, 5-(4′-aminophenyl)–10,15,20-triphenylporphyrin) and their copper complexes in dichloromethane and ethanol were electropolymerized by the cyclic voltammetry method and their electrochemical properties were studied. The polyporphyrin films obtained by electro-oxidation transmit electricity and possess semiconductor properties of different types. The poly-5,10,15,20-tetrakis(4′-aminophenyl)porphyrin films obtained from different solvents are similar to each other in chemical composition but different in morphology. The polyporphyrin film surface morphology was studied by AFM microscopy.
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Affiliation(s)
- Mariya V. Tesakova
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo 153045, Russia
| | - Aleksandr S. Semeikin
- Ivanovo State University of Chemistry and Technology, Sheremetevsky Avenue 7, Ivanovo 153000, Russia
| | - Vladimir I. Parfenyuk
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo 153045, Russia
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13
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Age-dependent changes in the glutamate-nitric oxide pathway in the hippocampus of the triple transgenic model of Alzheimer's disease: implications for neurometabolic regulation. Neurobiol Aging 2016; 46:84-95. [PMID: 27460153 DOI: 10.1016/j.neurobiolaging.2016.06.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 06/16/2016] [Accepted: 06/21/2016] [Indexed: 12/26/2022]
Abstract
Age-dependent changes in nitric oxide ((•)NO) concentration dynamics may play a significant role in both decaying synaptic and metabolic functions in Alzheimer's disease (AD). This neuromodulator acts presynaptically to increase vesicle release and glutamatergic transmission and also regulates mitochondrial function. Under conditions of altered intracellular redox environment, (•)NO may react and produce reactive species such as peroxynitrite. Using the triple transgenic mouse model of AD (3xTgAD), we investigated age-dependent changes in the glutamate-(•)NO axis in the hippocampus. Direct measurement of (•)NO concentration dynamics revealed a significant increase in N-methyl-D-aspartate type receptor-evoked peak (•)NO in the 3xTgAD model at an early age. Aging produced a decrease in peak (•)NO accompanied by significant decrease in production and decay rates in the transgenic model. Evaluation of energy metabolism revealed age-dependent decrease in basal oxygen consumption rate, a general decrease in mitochondrial oxidative phosphorylation parameters, and loss in mitochondrial sparing capacity in both genotypes. Finally, we observed age-dependent increase in 3-nitrotyrosine residues in the hippocampus, consistent with a putative shift in (•)NO bioactivity toward oxidative chemistry associated with neurotoxicity.
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14
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Evaluation of the degradation of acetaminophen by the filamentous fungus Scedosporium dehoogii using carbon-based modified electrodes. Anal Bioanal Chem 2016; 408:5895-5903. [DOI: 10.1007/s00216-016-9704-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/27/2016] [Accepted: 06/08/2016] [Indexed: 01/31/2023]
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15
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Champavert J, Ben Rejeb S, Innocent C, Pontié M. Microbial fuel cell based on Ni-tetra sulfonated phthalocyanine cathode and graphene modified bioanode. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.09.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Farina D, Alvau MD, Puggioni G, Calia G, Bazzu G, Migheli R, Sechi O, Rocchitta G, Desole MS, Serra PA. Implantable (Bio)sensors as new tools for wireless monitoring of brain neurochemistry in real time. World J Pharmacol 2014; 3:1-17. [DOI: 10.5497/wjp.v3.i1.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 05/01/2014] [Accepted: 05/29/2014] [Indexed: 02/06/2023] Open
Abstract
Implantable electrochemical microsensors are characterized by high sensitivity, while amperometric biosensors are very selective in virtue of the biological detecting element. Each sensor, specific for every neurochemical species, is a miniaturized high-technology device resulting from the combination of several factors: electrode material, shielding polymers, applied electrochemical technique, and in the case of biosensors, biological sensing material, stabilizers, and entrapping chemical nets. In this paper, we summarize the available technology for the in vivo electrochemical monitoring of neurotransmitters (dopamine, norepinephrine, serotonin, acetylcholine, and glutamate), bioenergetic substrates (glucose, lactate, and oxygen), neuromodulators (ascorbic acid and nitric oxide), and exogenous molecules such as ethanol. We also describe the most represented biotelemetric technologies in order to wirelessly transmit the signals of the above-listed neurochemicals. Implantable (Bio)sensors, integrated into miniaturized telemetry systems, represent a new generation of analytical tools that could be used for studying the brain’s physiology and pathophysiology and the effects of different drugs (or toxic chemicals such as ethanol) on neurochemical systems.
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Jiang S, Cheng R, Wang X, Xue T, Liu Y, Nel A, Huang Y, Duan X. Real-time electrical detection of nitric oxide in biological systems with sub-nanomolar sensitivity. Nat Commun 2014; 4:2225. [PMID: 23887829 DOI: 10.1038/ncomms3225] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 06/28/2013] [Indexed: 12/23/2022] Open
Abstract
Real-time monitoring of nitric oxide concentrations is of central importance for probing the diverse roles of nitric oxide in neurotransmission, cardiovascular systems and immune responses. Here we report a new design of nitric oxide sensors based on hemin-functionalized graphene field-effect transistors. With its single atom thickness and the highest carrier mobility among all materials, graphene holds the promise for unprecedented sensitivity for molecular sensing. The non-covalent functionalization through π-π stacking interaction allows reliable immobilization of hemin molecules on graphene without damaging the graphene lattice to ensure the highly sensitive and specific detection of nitric oxide. Our studies demonstrate that the graphene-hemin sensors can respond rapidly to nitric oxide in physiological environments with a sub-nanomolar sensitivity. Furthermore, in vitro studies show that the graphene-hemin sensors can be used for the detection of nitric oxide released from macrophage cells and endothelial cells, demonstrating their practical functionality in complex biological systems.
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Affiliation(s)
- Shan Jiang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
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18
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Erbahar DD, Harbeck M, Gürol I, Gümüş G, Musluoǧlu E, Öztürk ZZ, Ahsen V. Zinc phthalocyanines with fluorinated substituents for direct sensing of carbamate and organophosphate pesticides in water. J PORPHYR PHTHALOCYA 2013. [DOI: 10.1142/s108842461350065x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Water pollution by pesticides as the result of intensive agriculture and horticulture has brought many negative consequences to humans and ecosystems. Among others, chemical sensor systems are under intense development for direct pesticide analysis in aqueous samples as a cost effective and simple alternative analytical method. In this work, a set of zinc phthalocyanines is studied in its liquid sensing properties using quartz crystal microbalances. Four different species selected from the two most common organophosphorus and carbamate classes of pesticides are used as test analytes. The phthalocyanines are chemically modified with different fluorinated substituents to increase sensor sensitivity and govern pesticide selectivity in order to create sensors with widely diverging analyte responses. By this means, sensors with a general high sensitivity and selectivity for the two pesticide classes were obtained and detection limits down to 0.03 mg.L-1 could be achieved. The response data of the sensors are analyzed in detail using exploratory multivariate data evaluation methods. The results show that phthalocyanine based sensors are a truly capable platform for chemical analysis systems of aqueous samples.
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Affiliation(s)
- Dilek D. Erbahar
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Mika Harbeck
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Ilke Gürol
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Gülay Gümüş
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Emel Musluoǧlu
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Zafer Z. Öztürk
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
- Gebze Institute of Technology, Department of Physics, PO Box 141, Gebze 41400, Turkey
| | - Vefa Ahsen
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
- Gebze Institute of Technology, Department of Chemistry, PO Box 141, Gebze 41400, Turkey
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Kitamura Y, Ogawa H, Oka K. Real-time measurement of nitric oxide using a bio-imaging and an electrochemical technique. Talanta 2013; 61:717-24. [PMID: 18969236 DOI: 10.1016/s0039-9140(03)00333-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2002] [Revised: 01/28/2003] [Accepted: 05/28/2003] [Indexed: 11/30/2022]
Abstract
Nitric oxide (NO) is an important mediator responsible for numerous physiological phenomena. Transient levels of NO in biological systems usually range from nanomolar to micromolar concentrations, with a rapid return to basal levels normally seen following these increases. Because NO can diffuse only over a local area in limited time due to such low levels of production and due to its short life-time prior to degradation, high spatial and temporal resolutions are required for direct and continuous NO measurement if the physiological role of NO is to be investigated in any system. For such purposes, analytical methods based on bio-imaging and electrochemical techniques for the measurement of NO are useful. In this paper, we describe the successful application of these methods to a number of biological systems. Specifically, complementary application of these methods demonstrate that it is possible to detect real-time NO production from nervous tissue with high spatial and temporal resolutions.
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Affiliation(s)
- Yoshiichiro Kitamura
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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Electrochemical and Monte Carlo studies of self-assembled trans-[Fe(cyclam)(NCS)2]+ complex ion on gold surface as electrochemical sensor for nitric oxide. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.11.132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Bedioui F, Griveau S. Electrochemical Detection of Nitric Oxide: Assessement of Twenty Years of Strategies. ELECTROANAL 2012. [DOI: 10.1002/elan.201200306] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Abstract
The sensor applications of MPc derivatives on carbon-type electrodes are briefly reviewed. The electrochemical properties of metallophthalocyanines in solution and on a surface are reviewed with emphasis on predicting redox potentials using Hammett substituent constants and using ligand electrochemical parameters. Design requirements for a two-electron redox process at a metallophthalocyanine center are discussed. A two-dimensional approach using both Hammett parameters and ligand electrochemical parameters is introduced. Some preliminary test examples are presented.
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Affiliation(s)
- A. B. P. LEVER
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
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23
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Abstract
The sensor applications of MPc derivatives on carbon-type electrodes are briefly reviewed. The electrochemical properties of metallophthalocyanines in solution and on a surface are reviewed with emphasis on predicting redox potentials using Hammett substituent constants and using ligand electrochemical parameters. Design requirements for a two-electron redox process at a metallophthalocyanine center are discussed. A two-dimensional approach using both Hammett parameters and ligand electrochemical parameters is introduced. Some preliminary test examples are presented.
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Affiliation(s)
- A. B. P. LEVER
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
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Schulte A, Nebel M, Schuhmann W. Single Live Cell Topography and Activity Imaging with the Shear-Force-Based Constant-Distance Scanning Electrochemical Microscope. Methods Enzymol 2012; 504:237-54. [DOI: 10.1016/b978-0-12-391857-4.00012-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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25
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Santos VN, Cabral MF, Ferreira JS, Holanda AK, Machado SA, Sousa JR, Lopes LG, Correia AN, Neto PDL. Study of a gold electrode modified by trans-[Ru(NH3)4(Ist)SO4]+ to produce an electrochemical sensor for nitric oxide. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.04.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Zagal JH, Griveau S, Silva JF, Nyokong T, Bedioui F. Metallophthalocyanine-based molecular materials as catalysts for electrochemical reactions. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2010.05.001] [Citation(s) in RCA: 346] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Trouillon R, Cheung C, Patel BA, O'Hare D. Electrochemical study of the intracellular transduction of vascular endothelial growth factor induced nitric oxide synthase activity using a multi-channel biocompatible microelectrode array. Biochim Biophys Acta Gen Subj 2010; 1800:929-36. [DOI: 10.1016/j.bbagen.2010.04.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 03/24/2010] [Accepted: 04/19/2010] [Indexed: 11/26/2022]
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28
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YUASA M, KOBAYASHI C, TAKAHASHI K, MURATA H. Polymeric Iron Porphyrin Complex-Modified Carbon Electrodes for Detection of Nitric Oxide (NO). KOBUNSHI RONBUNSHU 2010. [DOI: 10.1295/koron.67.97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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Porras Gutierrez A, Griveau S, Richard C, Pailleret A, Gutierrez Granados S, Bedioui F. Hybrid Materials from Carbon Nanotubes, Nickel Tetrasulfonated Phthalocyanine and Thin Polymer Layers for the Selective Electrochemical Activation of Nitric Oxide in Solution. ELECTROANAL 2009. [DOI: 10.1002/elan.200904686] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Brunert D, Kurtenbach S, Isik S, Benecke H, Gisselmann G, Schuhmann W, Hatt H, Wetzel CH. Odorant-dependent generation of nitric oxide in Mammalian olfactory sensory neurons. PLoS One 2009; 4:e5499. [PMID: 19430528 PMCID: PMC2675079 DOI: 10.1371/journal.pone.0005499] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2008] [Accepted: 04/15/2009] [Indexed: 11/26/2022] Open
Abstract
The gaseous signalling molecule nitric oxide (NO) is involved in various physiological processes including regulation of blood pressure, immunocytotoxicity and neurotransmission. In the mammalian olfactory bulb (OB), NO plays a role in the formation of olfactory memory evoked by pheromones as well as conventional odorants. While NO generated by the neuronal isoform of NO synthase (nNOS) regulates neurogenesis in the olfactory epithelium, NO has not been implicated in olfactory signal transduction. We now show the expression and function of the endothelial isoform of NO synthase (eNOS) in mature olfactory sensory neurons (OSNs) of adult mice. Using NO-sensitive micro electrodes, we show that stimulation liberates NO from isolated wild-type OSNs, but not from OSNs of eNOS deficient mice. Integrated electrophysiological recordings (electro-olfactograms or EOGs) from the olfactory epithelium of these mice show that NO plays a significant role in modulating adaptation. Evidence for the presence of eNOS in mature mammalian OSNs and its involvement in odorant adaptation implicates NO as an important new element involved in olfactory signal transduction. As a diffusible messenger, NO could also have additional functions related to cross adaptation, regeneration, and maintenance of MOE homeostasis.
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Affiliation(s)
- Daniela Brunert
- Lehrstuhl für Zellphysiologie, Ruhr-Universität Bochum, Bochum, Germany
- International Graduate School of Neuroscience, Ruhr-Universität Bochum, Bochum, Germany
| | - Stefan Kurtenbach
- Lehrstuhl für Zellphysiologie, Ruhr-Universität Bochum, Bochum, Germany
| | - Sonnur Isik
- Lehrstuhl für Analytische Chemie, AG Elektroanalytik und Sensorik, Ruhr-Universität Bochum, Bochum, Germany
| | - Heike Benecke
- Lehrstuhl für Zellphysiologie, Ruhr-Universität Bochum, Bochum, Germany
| | - Günter Gisselmann
- Lehrstuhl für Zellphysiologie, Ruhr-Universität Bochum, Bochum, Germany
| | - Wolfgang Schuhmann
- Lehrstuhl für Analytische Chemie, AG Elektroanalytik und Sensorik, Ruhr-Universität Bochum, Bochum, Germany
- International Graduate School of Neuroscience, Ruhr-Universität Bochum, Bochum, Germany
| | - Hanns Hatt
- Lehrstuhl für Zellphysiologie, Ruhr-Universität Bochum, Bochum, Germany
- International Graduate School of Neuroscience, Ruhr-Universität Bochum, Bochum, Germany
| | - Christian H. Wetzel
- Lehrstuhl für Zellphysiologie, Ruhr-Universität Bochum, Bochum, Germany
- International Graduate School of Neuroscience, Ruhr-Universität Bochum, Bochum, Germany
- * E-mail:
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31
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Pérez-Morales M, de Miguel G, Muñoz E, Martín-Romero MT, Camacho L. Oxygen storage/release in cobalt porphyrin electrodeposited films. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.09.070] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Brown FO, Finnerty NJ, Lowry JP. Nitric oxide monitoring in brain extracellular fluid: characterisation of Nafion®-modified Pt electrodes in vitro and in vivo. Analyst 2009; 134:2012-20. [DOI: 10.1039/b909005c] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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33
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Amatore C, Arbault S, Guille M, Lemaître F. Electrochemical Monitoring of Single Cell Secretion: Vesicular Exocytosis and Oxidative Stress. Chem Rev 2008; 108:2585-621. [DOI: 10.1021/cr068062g] [Citation(s) in RCA: 316] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Wang F, Chen X, Xu Y, Hu S, Gao Z. Enhanced electron transfer for hemoglobin entrapped in a cationic gemini surfactant films on electrode and the fabrication of nitric oxide biosensor. Biosens Bioelectron 2007; 23:176-82. [PMID: 17482453 DOI: 10.1016/j.bios.2007.03.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2006] [Revised: 02/18/2007] [Accepted: 03/28/2007] [Indexed: 11/26/2022]
Abstract
The direct electrical communication between hemoglobin (Hb) and GCE surface was achieved based on the immobilization of Hb in a cationic gemini surfactant film and characterized by electrochemical techniques. The cyclic voltammograms showed that direct electron transfer between Hb and electrode surface was obviously promoted and then a novel unmediated nitric oxide (NO) biosensor was constructed in view of this protein-based electrode. This modified electrode showed an enzyme-like activity towards the reduction of NO and its amperometric response to NO was well-behaved with a rapid response time and displaying Michaelis-Menten kinetics with a calculated Km(app) value of 84.37 micromol L(-1). The detection limit was estimated to be 2.00 x 10(-8)mol L(-1). This biosensor was behaving as expected that it had a good stability and reproducibility, a higher sensitivity and selectivity and should has a potential application in monitoring NO released from biologic samples.
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Affiliation(s)
- Fang Wang
- Department of Chemistry, Wuhan University, Wuhan 430072, PR China
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35
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Isik S, Schuhmann W. Detection of nitric oxide release from single cells by using constant-distance-mode scanning electrochemical microscopy. Angew Chem Int Ed Engl 2007; 45:7451-4. [PMID: 17039552 DOI: 10.1002/anie.200601708] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sonnur Isik
- Analytische Chemie-Elektroanalytik & Sensorik, Ruhr-Universität Bochum, Universitätsstrasse 150, NC 04/788, 44780 Bochum, Germany
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36
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Tornieri K, Rehder V. Nitric oxide release from a single cell affects filopodial motility on growth cones of neighboring neurons. Dev Neurobiol 2007; 67:1932-43. [PMID: 17874460 DOI: 10.1002/dneu.20572] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Nitric oxide (NO), a gaseous messenger, has been reported to be involved in a variety of functions in the nervous system, ranging from neuronal pathfinding to learning and memory. We have shown previously that the application of NO via NO donors to growth cones of identified Helisoma buccal neurons B5 in vitro induces an increase in filopodial length, a decrease in filopodial number, and a slowing in neurite advance. It is unclear, however, whether NO released from a physiological source would affect growth cone dynamics. Here we used cell bodies of identified neurons known to express the NO synthesizing enzyme nitric oxide synthase (NOS) as a source of constitutive NO production and tested their effect on growth cones of other cells in a sender-receiver paradigm. We showed that B5 cell bodies induced a rapid increase in filopodial length in NO-responsive growth cones, and that this effect was blocked by the NOS inhibitor 7-NI, suggesting that the effect was mediated by NO. Inhibition of soluble guanylyl cyclase (sGC) with ODQ blocked filopodial elongation induced by B5 somata, confirming that NO acted via sGC. We also demonstrate that the effect of NO was reversible and that a cell releasing NO can affect growth cones over a distance of at least 100 microm. Our results suggest that NO released from a physiological source can affect the motility of nearby growth cones and thus should be considered a signaling molecule with the potential to affect the outcome of neuronal pathfinding in vivo.
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Affiliation(s)
- Karine Tornieri
- Department of Biology, Georgia State University, Atlanta, GA 30302-4010, USA
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37
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Isik S, Schuhmann W. Detektion der Ausschüttung von NO an einzelnen Zellen mit elektrochemischer Rastermikroskopie in konstantem Abstand. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200601708] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Agboola BO, Ozoemena KI, Nyokong T. Electrochemical properties of benzylmercapto and dodecylmercapto tetra substituted nickel phthalocyanine complexes: Electrocatalytic oxidation of nitrite. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2006.04.033] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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39
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Pérez-Morales M, Martín-Romero MT, Muñoz E, Camacho L. Mediator and catalytic effects of porphyrin modified electrodes on redox LB films. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2005.10.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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40
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Shibli SMA, Beenakumari KS, Suma ND. Nano nickel oxide/nickel incorporated nickel composite coating for sensing and estimation of acetylcholine. Biosens Bioelectron 2006; 22:633-8. [PMID: 16527477 DOI: 10.1016/j.bios.2006.01.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2005] [Revised: 01/25/2006] [Accepted: 01/26/2006] [Indexed: 11/22/2022]
Abstract
Pure nickel electrodes can be used as biosensors especially for sensing and estimating acetylcholine neurotransmitter. In the present work, a good electrochemical sensor was developed by electroplating nano nickel oxide reinforced nickel on graphite substrate. The morphology of the working electrode surface was studied by using a scanning electron microscope (SEM). The electrochemical and biological performance of the modified electrode was characterized by polarization studies in different media. The present modified electrode showed good sensing performance with a response time as low as 8s during sensing and estimation of acetylcholine. The sensitivity of the modified electrode was 34.88 microA/(microM cm(2)).
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Affiliation(s)
- S M A Shibli
- Department of Chemistry, University of Kerala, Kariavottom Campus, Trivandrum, Kerala 695581, India.
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41
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Miserere S, Ledru S, Ruillé N, Griveau S, Boujtita M, Bedioui F. Biocompatible carbon-based screen-printed electrodes for the electrochemical detection of nitric oxide. Electrochem commun 2006. [DOI: 10.1016/j.elecom.2005.11.016] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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42
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Wadsworth R, Stankevicius E, Simonsen U. Physiologically relevant measurements of nitric oxide in cardiovascular research using electrochemical microsensors. J Vasc Res 2005; 43:70-85. [PMID: 16276114 DOI: 10.1159/000089547] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2005] [Accepted: 09/23/2005] [Indexed: 01/04/2023] Open
Abstract
Nitric oxide (NO) plays an important role in the regulation of blood flow. Pharmacological tools and a series of other techniques have been developed for studying the NO/L-arginine pathway, but it has proved difficult to make a quantitative link between effect and tissue NO concentration. NO microsensors have been applied with success for the measurement of NO in suspensions of mitochondria and cells, such as platelets and leukocytes, and in cell cultures, which together with other interventions or measurements are particularly useful for the examination of cell signalling related to the NO/L-arginine pathway. In isolated vascular segments, studies using the NO microsensor have defined the relationship between NO concentration and relaxation and revealed residual NO release in the presence of NO synthase inhibitors. Moreover, simultaneous measurements of NO concentration and vasorelaxation in isometric preparations have shown that agonist-induced relaxation is L-arginine dependent and NO release is reduced in hypertension. By placing NO microsensors in catheters, it is possible to measure NO in the living animal and man. This approach has been applied for the measurements of NO concentration in relation to increases in flow, erection, in conditions of hypoxia, and in endotoxemia. However, further methodological development of NO microsensors is necessary to avoid the influence of changes in temperature, pH and oxygen on the measurements.
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Affiliation(s)
- Roger Wadsworth
- Department of Physiology and Pharmacology, University of Strathclyde, Glasgow, Scotland, UK
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43
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Wartelle C, Schuhmann W, Blöchl A, Bedioui F. Integrated compact biocompatible hydrogel-based amperometric sensing device for easy screening of drugs involved in nitric oxide production by adherent cultured cells. Electrochim Acta 2005. [DOI: 10.1016/j.electacta.2004.12.048] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Pérez-Morales M, Muñoz E, Martín-Romero MT, Camacho L. Anodic electrodeposition of NiTSPP from aqueous basic media. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:5468-74. [PMID: 15924477 DOI: 10.1021/la0470683] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The oxidative electrodeposition of NiTSPP (tetrakis(4-sulfonatophenyl) Ni porphyrin) on ITO electrode from 0.1 M NaOH aqueous solution has been studied, and UV-visible and reflection FTIR spectroscopies have been used to analyze the composition of such film. By use of UV-vis spectroscopy, small absorbance of the film and an almost nulling effect on the Soret band of the porphyrin along the Ni(III)/Ni(II) redox process were observed. The reflection FTIR spectroscopy detected the presence of Ni-OH groups in the reduced film and as well the state of the porphyrin molecules as radical cation. Moreover, the porphyrin has been quantified by means of the area of the vibration bands assigned to the sulfonate groups by using as reference a Langmuir-Blodgett film containing a known surface concentration of NiTSPP. These results lead us propose the formation of a conductor salt by electrocrystallization, with stoichiometries TSPP/Ni(II)(OH)2 and TSPP/Ni(III)OOH, for its reduced and oxidized forms, respectively. In these two forms, the porphyrin rings will be present as radical cation, which may be stabilized through its dimerization or polymerization.
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Affiliation(s)
- Marta Pérez-Morales
- Departamento de Química Física y Termodinámica Aplicada, Universidad de Córdoba, Campus de Rabanales, Ed. Marie Curie, Córdoba E-14014, Spain
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45
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Kim IK, Chung HT, Oh GS, Bae HO, Kim SH, Chun HJ. Integrated gold-disk microelectrode modified with iron(II)-phthalocyanine for nitric oxide detection in macrophages. Microchem J 2005. [DOI: 10.1016/j.microc.2004.07.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Quintino MDSM, Winnischofer H, Nakamura M, Araki K, Toma HE, Angnes L. Amperometric sensor for glucose based on electrochemically polymerized tetraruthenated nickel-porphyrin. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.02.057] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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47
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Lee Y, Oh BK, Meyerhoff ME. Improved planar amperometric nitric oxide sensor based on platinized platinum anode. 1. Experimental results and theory when applied for monitoring NO release from diazeniumdiolate-doped polymeric films. Anal Chem 2004; 76:536-44. [PMID: 14750844 DOI: 10.1021/ac035064h] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An improved miniature amperometric nitric oxide sensor design with a planar sensing tip (ranging from 150 microm to 2 mm in diameter) is reported. The sensor is fabricated using a platinized platinum anode and a Ag/AgCl cathode housed behind a microporous poly(tetrafluoroethylene) (PTFE; Gore-tex) gas-permeable membrane. Platinization of the working platinum electrode surface dramatically improves the analytical performance of the sensor by providing approximately 10-fold higher sensitivity (0.8-1.3 pA/nM), approximately 10-fold lower detection limit (< or =1 nM), and extended (at least 3-fold) stability (>3 d) compared to sensors prepared with bare Pt electrodes. These improvements in performance arise from increasing the kinetics and lowering the required potential for the 3-electron oxidation of NO to nitrate, relative to that observed using a nonplatinized working electrode. The outer porous PTFE membrane provides complete selectivity for NO over nitrite ions (up to 10 mM nitrite). The new sensor is applied for surface measurements of NO released from diazeniumdiolate-loaded silicone rubber films (SR-DACA-6/N(2)O(2)). The effects of sensor size (for sensor dimensions of 0.15-, 1-, and 2-mm o.d.) and the distance of the sensor from the surface of the NO-emitting polymer film are investigated via experiments as well as theoretical calculations. A significant analyte trapping effect is demonstrated, the degree of which depends on the sensor size and its distance from the surface. It is further demonstrated that surface NO concentrations for fresh SR-DACA-6/N(2)O(2) loaded films are also influenced by the polymer film thickness, with thicker films generating higher surface concentrations of NO.
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Affiliation(s)
- Youngmi Lee
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109-1055, USA
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48
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Briand O, Nizard FM, David-Dufilho M, Six I, Lestavel S, Brunet A, Fruchart JC, Torpier G, Bordet R, Clavey V, Duriez P. Human free apolipoprotein A-I and artificial pre-beta-high-density lipoprotein inhibit eNOS activity and NO release. Biochim Biophys Acta Mol Cell Biol Lipids 2004; 1683:69-77. [PMID: 15238221 DOI: 10.1016/j.bbalip.2004.04.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2003] [Accepted: 04/28/2004] [Indexed: 11/20/2022]
Abstract
Little is known about the effects of human free apolipoprotein A-I (Free-Apo A-I) and pre-beta-high density lipoprotein (pre-beta-HDL) on the endothelium function. In this study, we have investigated the effects of Free-Apo A-I and artificial pre-beta-HDL on endothelial NO synthase (eNOS) activity and on NO production by endothelial cells. Free-Apo A-I drastically inhibited NO production in human umbilical cord vein endothelial cells (HUVECs) and eNOS activity in bovine aortic endothelial cells (BAECs). Pre-beta-HDL and serum from human apolipoprotein A-I transgenic rabbits inhibited eNOS activity in BAECs but HDL3 did not. Free-Apo A-I displaced eNOS from BAEC plasma membrane towards intracellular pools without affecting eNOS activity and eNOS mass in BAEC crude homogenates. Free-Apo A-I and HDL3 did not decrease either caveolin bound to BAEC plasma membrane or caveola cholesterol content. As previously described, we showed that HDL3 directly induced endothelium-dependent relaxation of rings from rat aorta. We observed that pre-beta-HDL significantly decreased endothelium-dependent relaxation of rat aortic rings ex vivo.
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Affiliation(s)
- Olivier Briand
- Department of Research on Atherosclerosis, Inserm UMR545, Institut Pasteur de Lille et Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Professeur Laguesse, BP 83 59006 Lille Cedex, France
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49
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Topal G, Brunet A, Millanvoye E, Boucher JL, Rendu F, Devynck MA, David-Dufilho M. Homocysteine induces oxidative stress by uncoupling of NO synthase activity through reduction of tetrahydrobiopterin. Free Radic Biol Med 2004; 36:1532-41. [PMID: 15182855 DOI: 10.1016/j.freeradbiomed.2004.03.019] [Citation(s) in RCA: 117] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2004] [Revised: 03/17/2004] [Accepted: 03/26/2004] [Indexed: 01/18/2023]
Abstract
Hyperhomocysteinemia is a risk factor for cardiovascular diseases that induces endothelial dysfunction. Here, we examine the participation of endothelial NO synthase (eNOS) in the homocysteine-induced alterations of NO/O(2)(-) balance in endothelial cells from human umbilical cord vein. When cells were treated for 24 h, homocysteine dose-dependently inhibited thrombin-activated NO release without altering eNOS phosphorylation and independently of the endogenous NOS inhibitor, asymmetric dimethylarginine. The inhibitory effect of homocysteine on NO release was associated with increased production of reactive nitrogen and oxygen species (RNS/ROS) independent of extracellular superoxide anion (O(2)(-)) and was suppressed by the NOS inhibitor L-NAME. In unstimulated cells, L-NAME markedly decreased RNS/ROS formation and the ethidium red fluorescence induced by homocysteine. This eNOS-dependent O(2)(-) synthesis was associated with reduced intracellular levels of both total biopterins (-45%) and tetrahydrobiopterin (-80%) and increased release of 7,8-dihydrobiopterin and biopterin in the extracellular medium (+40%). In addition, homocysteine suppressed the activating effect of sepiapterin on NO release, but not that of ascorbate. The results show that the oxidative stress and inhibition of NO release induced by homocysteine depend on eNOS uncoupling due to reduction of intracellular tetrahydrobiopterin availability.
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Affiliation(s)
- Gökce Topal
- Département de Signalisation cellulaire et athérosclérose précoce, UMR CNRS 7131- Université Paris 6, Hôpital Broussais, 102 rue Didot, 75014 Paris, France
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50
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In situ formation and scanning electrochemical microscopy assisted positioning of NO-sensors above human umbilical vein endothelial cells for the detection of nitric oxide release. Electrochem commun 2003. [DOI: 10.1016/j.elecom.2003.08.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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