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Movassaghi CS, Alcañiz Fillol M, Kishida KT, McCarty G, Sombers LA, Wassum KM, Andrews AM. Maximizing Electrochemical Information: A Perspective on Background-Inclusive Fast Voltammetry. Anal Chem 2024; 96:6097-6105. [PMID: 38597398 PMCID: PMC11044109 DOI: 10.1021/acs.analchem.3c04938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 04/11/2024]
Abstract
This perspective encompasses a focused review of the literature leading to a tipping point in electroanalytical chemistry. We tie together the threads of a "revolution" quietly in the making for years through the work of many authors. Long-held misconceptions about the use of background subtraction in fast voltammetry are addressed. We lay out future advantages that accompany background-inclusive voltammetry, particularly when paired with modern machine-learning algorithms for data analysis.
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Affiliation(s)
- Cameron S. Movassaghi
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, Los Angeles, California 90095, United States
| | - Miguel Alcañiz Fillol
- Interuniversity
Research Institute for Molecular Recognition and Technological Development, Universitat Politècnica de València-Universitat
de València, Camino de Vera s/n, Valencia 46022, Spain
| | - Kenneth T. Kishida
- Department
of Translational Neuroscience, Wake Forest
School of Medicine, Winston-Salem, North Carolina 27101, United States
- Department
of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina 27101, United States
| | - Gregory McCarty
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Leslie A. Sombers
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
- Comparative
Medicine Institute, North Carolina State
University, Raleigh, North Carolina 27695, United States
| | - Kate M. Wassum
- Department
of Psychology, University of California,
Los Angeles, Los Angeles, California 90095, United States
- Brain Research
Institute, University of California, Los
Angeles, Los Angeles, California 90095, United States
- Integrative
Center for Learning and Memory, University
of California, Los Angeles, Los
Angeles, California 90095, United States
- Integrative
Center for Addictive Disorders, University
of California, Los Angeles, Los
Angeles, California 90095, United States
| | - Anne Milasincic Andrews
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, Los Angeles, California 90095, United States
- Brain Research
Institute, University of California, Los
Angeles, Los Angeles, California 90095, United States
- Department
of Psychiatry and Biobehavioral Science, University of California, Los Angeles, Los Angeles, California 90095, United States
- Hatos Center
for Neuropharmacology, University of California,
Los Angeles, Los Angeles, California 90095, United States
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2
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Jamalzadeh M, Cuniberto E, Huang Z, Feeley RM, Patel JC, Rice ME, Uichanco J, Shahrjerdi D. Toward robust quantification of dopamine and serotonin in mixtures using nano-graphitic carbon sensors. Analyst 2024; 149:2351-2362. [PMID: 38375597 DOI: 10.1039/d3an02086j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Monitoring the coordinated signaling of dopamine (DA) and serotonin (5-HT) is important for advancing our understanding of the brain. However, the co-detection and robust quantification of these signals at low concentrations is yet to be demonstrated. Here, we present the quantification of DA and 5-HT using nano-graphitic (NG) sensors together with fast-scan cyclic voltammetry (FSCV) employing an engineered N-shape potential waveform. Our method yields 6% error in quantifying DA and 5-HT analytes present in in vitro mixtures at concentrations below 100 nM. This advance is due to the electrochemical properties of NG sensors which, in combination with the engineered FSCV waveform, provided distinguishable cyclic voltammograms (CVs) for DA and 5-HT. We also demonstrate the generalizability of the prediction model across different NG sensors, which arises from the consistent voltammetric fingerprints produced by our NG sensors. Curiously, the proposed engineered waveform also improves the distinguishability of DA and 5-HT CVs obtained from traditional carbon fiber (CF) microelectrodes. Nevertheless, this improved distinguishability of CVs obtained from CF is inferior to that of NG sensors, arising from differences in the electrochemical properties of the sensor materials. Our findings demonstrate the potential of NG sensors and our proposed FSCV waveform for future brain studies.
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Affiliation(s)
- Moeid Jamalzadeh
- Electrical and Computer Engineering Department, New York University, Brooklyn, NY 11201, USA.
| | - Edoardo Cuniberto
- Electrical and Computer Engineering Department, New York University, Brooklyn, NY 11201, USA.
| | - Zhujun Huang
- Electrical and Computer Engineering Department, New York University, Brooklyn, NY 11201, USA.
| | - Ryan M Feeley
- Department of Neurosurgery, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Jyoti C Patel
- Department of Neurosurgery, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Margaret E Rice
- Department of Neurosurgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Neuroscience and Physiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Joline Uichanco
- Ross School of Business, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Davood Shahrjerdi
- Electrical and Computer Engineering Department, New York University, Brooklyn, NY 11201, USA.
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3
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Voltammetric analysis of serotonin and epinephrine in the presence of guanine and adenine at Bismarck brown R amplified pencil graphite electrode. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Mullani SB, Dhodamani AG, Shellikeri A, Mullani NB, Tawade AK, Tayade SN, Biscay J, Dennany L, Delekar SD. Structural refinement and electrochemical properties of one dimensional (ZnO NRs) 1-x(CNs) x functional hybrids for serotonin sensing studies. Sci Rep 2020; 10:15955. [PMID: 32994507 PMCID: PMC7524834 DOI: 10.1038/s41598-020-72756-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 08/10/2020] [Indexed: 12/28/2022] Open
Abstract
Herein, the efficient serotonin (5-HT) sensing studies have been conducted using the (ZnO NRs)1-x(CNs)x nanocomposites (NCs) having appropriate structural and electrochemical properties. Initially, the different compositions of ZnO nanorods (NRs), with varying content of carbon nanostructures (CNs=MWCNTs and RGO), are prepared using simple in-situ wet chemical method and thereafter these NCs have been characterized for physico-chemical properties in correlation to the 5-HT sensing activity. XRD Rietveld refinement studies reveal the hexagonal Wurtzite ZnO NRs oriented in (101) direction with space group 'P63mc' and both orientation as well as phase of ZnO NRs are also retained in the NCs due to the small content of CNs. The interconnectivity between the ZnO NRs with CNs through different functional moieties is also studied using FTIR analysis; while phases of the constituents are confirmed through Raman analysis. FESEM images of the bare/NCs show hexagonal shaped rods with higher aspect ratio (4.87) to that of others. BET analysis and EIS measurements reveal the higher surface area (97.895 m2/g), lower charge transfer resistance (16.2 kΩ) for the ZCNT 0.1 NCs to that of other NCs or bare material. Thereafter, the prepared NCs are deposited on the screen printed carbon electrode (SPCE) using chitosan as cross-linked agent for 5-HT sensing studies; conducted through cyclic voltammetry (CV) and square wave voltammetry (SWV) measurements. Among the various composites, ZCNT0.1 NCs based electrodes exhibit higher sensing activity towards 5-HT in accordance to its higher surface area, lower particle size and lower charge transfer resistance. SWV measurements provide a wide linear response range (7.5-300 μM); lower limit of detection (0.66 μM), excellent limit of quantification (2.19 μM) and good reproducibility to ZCNT 0.1 NCs as compared to others for 5-HT sensing studies.
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Affiliation(s)
- Sajid B Mullani
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Ananta G Dhodamani
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Annadanesh Shellikeri
- Department of Electrical and Computer Engineering, Florida A&M University-Florida State University, Tallahassee, FL, 32310-6046, USA
- Aero-Propulsion, Mechatronics and Energy Centre, Florida State University, Tallahassee, FL, 32310-6046, USA
| | - Navaj B Mullani
- Department of Advanced Materials and Chemical Engineering, Hanyang University (ERICA), Ansan, 15588, South Korea
| | - Anita K Tawade
- School of Nanoscience and Biotechnology, Shivaji University, Kolhapur, 416004, MS, India
| | - Shivaji N Tayade
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Julien Biscay
- Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Lynn Dennany
- Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Sagar D Delekar
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India.
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5
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Ishida A, Imamura A, Ueda Y, Shimizu T, Marumoto R, Jung CG, Hida H. A novel biosensor with high signal-to-noise ratio for real-time measurement of dopamine levels in vivo. J Neurosci Res 2017; 96:817-827. [PMID: 29090830 PMCID: PMC5873456 DOI: 10.1002/jnr.24193] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 10/06/2017] [Accepted: 10/09/2017] [Indexed: 01/12/2023]
Abstract
Fast‐scan cyclic voltammetry (FSCV) is an established method for measuring dopamine (DA) levels in the brain in real time. However, it is difficult to discriminate DA from other monoamines such as serotonin (5‐hydroxytryptamine, 5‐HT) and norepinephrine (NE). We report a novel DA‐specific biosensor consisting of a carbon‐fiber electrode coated with an ion‐exchange membrane, a layer containing monoamine oxidase B, and a cellulose membrane. We performed FSCV using the probe to monitor the amount of DA in vitro and in vivo. First, we measured currents in vitro in phosphate‐buffered saline as we added one micromole each of DA, 5‐HT, and NE. The results confirmed that the biosensor selectively detected DA. Next, we implanted the probe in the striatum of male rats to investigate whether it could selectively detect changes in the DA content in vivo. The probe detected both the tonic change induced by methamphetamine administration and the phasic change induced by electrical stimulation of the medial forebrain bundle. In contrast, the electrode in the 6‐hydroxydopamine–lesioned striatum did not respond to systemic selective serotonin or serotonin/norepinephrine reuptake inhibitors, confirming its selectivity. Furthermore, the probe in the striatum could still detect changes in the DA level 1 week after electrode implantation. The results suggest that the novel biosensor can measure real‐time changes in DA levels in vivo with a relatively high signal‐to‐noise ratio.
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Affiliation(s)
- Akimasa Ishida
- Department of Neurophysiology and Brain Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Atsushi Imamura
- Department of Neurophysiology and Brain Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Intermedical Co., Ltd, Nagoya, Japan
| | - Yoshitomo Ueda
- Department of Neurophysiology and Brain Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takeshi Shimizu
- Department of Neurophysiology and Brain Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Ryosuke Marumoto
- Department of Neurophysiology and Brain Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Cha-Gyun Jung
- Department of Neurophysiology and Brain Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hideki Hida
- Department of Neurophysiology and Brain Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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6
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Ran G, Chen X, Xia Y. Electrochemical detection of serotonin based on a poly(bromocresol green) film and Fe3O4 nanoparticles in a chitosan matrix. RSC Adv 2017. [DOI: 10.1039/c6ra25639b] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A composite film containing poly(bromocresol green), magnetic nanoparticles and multiwalled carbon nanotubes was fabricated for the sensitive determination of serotonin.
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Affiliation(s)
- Gu Ran
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir
- Chongqing Three Georges University
- Wanzhou 404100
- P. R. China
| | - Xing Chen
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir
- Chongqing Three Georges University
- Wanzhou 404100
- P. R. China
| | - Ying Xia
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir
- Chongqing Three Georges University
- Wanzhou 404100
- P. R. China
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7
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Wang P, Xia M, Liang O, Sun K, Cipriano AF, Schroeder T, Liu H, Xie YH. Label-Free SERS Selective Detection of Dopamine and Serotonin Using Graphene-Au Nanopyramid Heterostructure. Anal Chem 2015; 87:10255-61. [PMID: 26382549 DOI: 10.1021/acs.analchem.5b01560] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ultrasensitive detection and spatially resolved mapping of neurotransmitters, dopamine and serotonin, are critical to facilitate understanding brain functions and investigate the information processing in neural networks. In this work, we demonstrated single molecule detection of dopamine and serotonin using a graphene-Au nanopyramid heterostructure platform. The quasi-periodic Au structure boosts high-density and high-homogeneity hotspots resulting in ultrahigh sensitivity with a surface enhanced Raman spectroscopic (SERS) enhancement factor ∼10(10). A single layer graphene superimposed on a Au structure not only can locate SERS hot spots but also modify the surface chemistry to realize selective enhancement Raman yield. Dopamine and serotonin could be detected and distinguished from each other at 10(-10) M level in 1 s data acquisition time without any pretreatment and labeling process. Moreover, the heterostructure realized nanomolar detection of neurotransmitters in the presence of simulated body fluids. These findings represent a step forward in enabling in-depth studies of neurological processes including those closely related to brain activity mapping (BAM).
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Affiliation(s)
- Pu Wang
- Department of Materials Science and Engineering and California Nano Systems Institute, University of California, Los Angeles , Los Angeles, California 90095-1595, United States
| | - Ming Xia
- Department of Materials Science and Engineering and California Nano Systems Institute, University of California, Los Angeles , Los Angeles, California 90095-1595, United States
| | - Owen Liang
- Department of Materials Science and Engineering and California Nano Systems Institute, University of California, Los Angeles , Los Angeles, California 90095-1595, United States
| | - Ke Sun
- Department of Materials Science and Engineering and California Nano Systems Institute, University of California, Los Angeles , Los Angeles, California 90095-1595, United States.,WaferTech, LLC , 5509 NW Parker St., Camas, Washington 98607, United States
| | - Aaron F Cipriano
- Department of Bioengineering, Materials Science and Engineering Program, University of California at Riverside , Riverside, California 92521, United States
| | - Thomas Schroeder
- Innovations for High Performance (IHP) , Im Technologiepark 25, Frankfurt (Oder) D-15236, Germany
| | - Huinan Liu
- Department of Bioengineering, Materials Science and Engineering Program, University of California at Riverside , Riverside, California 92521, United States
| | - Ya-Hong Xie
- Department of Materials Science and Engineering and California Nano Systems Institute, University of California, Los Angeles , Los Angeles, California 90095-1595, United States
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8
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Fagan-Murphy A, Patel BA. Compressed multiwall carbon nanotube composite electrodes provide enhanced electroanalytical performance for determination of serotonin. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.06.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Chen S, Zhang L, Long Y, Zhou F. Electroanalytical Sensors and Methods for Assays and Studies of Neurological Biomarkers. ELECTROANAL 2014. [DOI: 10.1002/elan.201400040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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10
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Simultaneous determination of dopamine, sertonin and ascorbic acid at a glassy carbon electrode modified with carbon-spheres. SENSORS 2013; 13:14029-40. [PMID: 24135993 PMCID: PMC3859106 DOI: 10.3390/s131014029] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2013] [Revised: 10/06/2013] [Accepted: 10/12/2013] [Indexed: 11/16/2022]
Abstract
A novel glassy carbon electrode (GCE) modified with carbon-spheres has been fabricated through a simple casting procedure. The modified GCE displays high selectivity and excellent electrochemical catalytic activities towards dopamine (DA), serotonin (5-HT), and ascorbic acid (AA). In the co-existence system, the peak separations between AA and DA, DA and 5-HT, and AA and 5-HT are large up to 230, 180, and 410 mV, respectively. Differential pulse voltammetry (DPV) has been employed to simultaneously detect DA, 5-HT, and AA, and the linear calibration curves for DA, 5-HT, and AA are obtained in the range of 20.0-150.0 μM, 40.0-750.0 μM and 300.0-2,000.0 μM with detection limits (S/N = 3) of 2.0 μM, 0.7 μM and 0.6 μM, respectively. The proposed electrode has been applied to detect DA, 5-HT, and AA in real samples using standard addition method with satisfactory results.
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11
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Azzopardi C, Azzopardi M, Muscat R, Camilleri KP. Investigating linear superposition of multi-species neurotransmitter voltammetric measurements in-vitro. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2012:3527-30. [PMID: 23366688 DOI: 10.1109/embc.2012.6346727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Fast-Scan Cyclic Voltammetry (FSCV) is frequently used to monitor the concentrations of neurotransmitters in real-time. However, few studies have examined the issue of monitoring the concentration of multiple neurotransmitters at the same time, despite their coexistence at brain synapses. This stems from the fact that some neurotransmitters have relatively similar electrochemical profiles. In this work we use Factor Spaces to analyze the current signals obtained using FSCV for both individual and mixed solutions of neurotransmitters. It is shown that the behavior of the current signals during the interaction between the neurotransmitter species approaches the principle of superposition. This potentially results in a significant simplification in the way combined voltammetric data is interpreted. The performance of Principal Component Analysis in extracting suitable Factor Spaces is evaluated.
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Affiliation(s)
- Carl Azzopardi
- Faculty of Engineering, University of Malta, Msida, Malta.
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12
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Jackowska K, Krysinski P. New trends in the electrochemical sensing of dopamine. Anal Bioanal Chem 2012; 405:3753-71. [PMID: 23241816 PMCID: PMC3608872 DOI: 10.1007/s00216-012-6578-2] [Citation(s) in RCA: 228] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 11/12/2012] [Accepted: 11/13/2012] [Indexed: 12/11/2022]
Abstract
Since the early 70s electrochemistry has been used as a powerful analytical technique for monitoring electroactive species in living organisms. In particular, after extremely rapid evolution of new micro and nanotechnology it has been established as an invaluable technique ranging from experiments in vivo to measurement of exocytosis during communication between cells under in vitro conditions. This review highlights recent advances in the development of electrochemical sensors for selective sensing of one of the most important neurotransmitters--dopamine. Dopamine is an electroactive catecholamine neurotransmitter, abundant in the mammalian central nervous system, affecting both cognitive and behavioral functions of living organisms. We have not attempted to cover a large time-span nor to be comprehensive in presenting the vast literature devoted to electrochemical dopamine sensing. Instead, we have focused on the last five years, describing recent progress as well as showing some problems and directions for future development.
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13
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A carbon nanofiber based biosensor for simultaneous detection of dopamine and serotonin in the presence of ascorbic acid. Biosens Bioelectron 2012; 42:434-8. [PMID: 23228495 DOI: 10.1016/j.bios.2012.10.080] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 10/23/2012] [Accepted: 10/24/2012] [Indexed: 11/20/2022]
Abstract
A biosensor based on an array of vertically aligned carbon nanofibers (CNFs) grown by plasma enhanced chemical vapor deposition is found to be effective for the simultaneous detection of dopamine (DA) and serotonin (5-HT) in the presence of excess ascorbic acid (AA). The CNF electrode outperforms the conventional glassy carbon electrode (GCE) for both selectivity and sensitivity. Using differential pulse voltammetry (DPV), three distinct peaks are seen for the CNF electrode at 0.13 V, 0.45 V, and 0.70 V for the ternary mixture of AA, DA, and 5-HT. In contrast, the analytes are indistinguishable in a mixture using a GCE. For the CNF electrode, the detection limits are 50 nM for DA and 250 nM for 5-HT.
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14
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Hall IC, Sell GL, Chester EM, Hurley LM. Stress-evoked increases in serotonin in the auditory midbrain do not directly result from elevations in serum corticosterone. Behav Brain Res 2012; 226:41-9. [DOI: 10.1016/j.bbr.2011.08.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 08/26/2011] [Accepted: 08/27/2011] [Indexed: 11/26/2022]
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15
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Hu L, Huo K, Chen R, Gao B, Fu J, Chu PK. Recyclable and High-Sensitivity Electrochemical Biosensing Platform Composed of Carbon-Doped TiO2 Nanotube Arrays. Anal Chem 2011; 83:8138-44. [DOI: 10.1021/ac201639m] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Liangsheng Hu
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Kaifu Huo
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Rongsheng Chen
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Biao Gao
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Jijiang Fu
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Paul K. Chu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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16
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Patel BA, Rogers M, Wieder T, O'Hare D, Boutelle MG. ATP microelectrode biosensor for stable long-term in vitro monitoring from gastrointestinal tissue. Biosens Bioelectron 2010; 26:2890-6. [PMID: 21163639 DOI: 10.1016/j.bios.2010.11.033] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2010] [Revised: 11/22/2010] [Accepted: 11/23/2010] [Indexed: 12/20/2022]
Abstract
We have developed a stable and selective ATP biosensor for long-term in vitro tissue monitoring. The electrode was fabricated by entrapping glucose oxidase (GOx) and hexokinase (HEX) in a poly-phenol film on a Pt microelectrode. The biosensor was stable to a fixed concentration of glucose for over 20 min and had a limit of detection of 9.9 ± 3.2 nM, with a sensitivity of 45.8 ± 1.22 pA μM(-1). Most significantly of all, the response on the ATP biosensor did not alter in the presence of 1mM ascorbic acid, 5 μM dopamine, 5 μM serotonin, 5 μM ADP and 5 μM AMP. The ATP biosensor was also shown to have excellent stability over 7 days, and showed only a 23.92 ± 3.55% loss in sensitivity. The ATP biosensor was utilised for the in vitro detection of ATP from gastrointestinal tissue. The ATP biosensor response was stable for 5h during in vitro recordings from ileum tissue. ATP release was shown to be greater from the mucosal surface in the ileum compared to the colon.
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Affiliation(s)
- Bhavik Anil Patel
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK.
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17
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Hutton EA, Pauliukaitė R, Hocevar SB, Ogorevc B, Smyth MR. Amperometric microsensor for direct probing of ascorbic acid in human gastric juice. Anal Chim Acta 2010; 678:176-82. [DOI: 10.1016/j.aca.2010.08.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 08/19/2010] [Accepted: 08/20/2010] [Indexed: 01/27/2023]
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18
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Hall IC, Rebec GV, Hurley LM. Serotonin in the inferior colliculus fluctuates with behavioral state and environmental stimuli. ACTA ACUST UNITED AC 2010; 213:1009-17. [PMID: 20228336 DOI: 10.1242/jeb.035956] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Neuromodulation by serotonin (5-HT) could link behavioral state and environmental events with sensory processing. Within the auditory system, the presence of 5-HT alters the activity of neurons in the inferior colliculus (IC), but the conditions that influence 5-HT neurotransmission in this region of the brain are unknown. We used in vivo voltammetry to measure extracellular 5-HT in the IC of behaving mice to address this issue. Extracellular 5-HT increased with the recovery from anesthesia, suggesting that the neuromodulation of auditory processing is correlated with the level of behavioral arousal. Awake mice were further exposed to auditory (broadband noise), visual (light) or olfactory (2,5-dihydro-2,4,5-trimethylthiazoline, TMT) stimuli, presented with food or confined in a small arena. Only the auditory stimulus or restricted movement increased the concentration of extracellular 5-HT in the IC. Changes occurred within minutes of stimulus onset, with the auditory stimulus increasing extracellular 5-HT by an average of 5% and restricted movement increasing it by an average of 14%. These findings suggest that the neuromodulation of auditory processing by 5-HT is a dynamic process that is dependent on internal state and behavioral conditions.
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Affiliation(s)
- Ian C Hall
- Department of Biology, 1001 E. Third Street, 342 Jordan Hall, Indiana University, Bloomington, IN 47405, USA.
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Singh YS, Sawarynski LE, Michael HM, Ferrell RE, Murphey-Corb MA, Swain GM, Patel BA, Andrews AM. Boron-Doped Diamond Microelectrodes Reveal Reduced Serotonin Uptake Rates in Lymphocytes from Adult Rhesus Monkeys Carrying the Short Allele of the 5-HTTLPR. ACS Chem Neurosci 2010; 1:49-64. [PMID: 20352073 DOI: 10.1021/cn900012y] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Uptake resolved by high-speed chronoamperometry on a second-by-second basis has revealed important differences in brain serotonin transporter function associated with genetic variability. Here, we use chronoamperometry to investigate variations in serotonin transport in primary lymphocytes associated with the rhesus serotonin transporter gene-linked polymorphism (rh5-HTTLPR), a promoter polymorphism whose orthologs occur only in higher order primates including humans. Serotonin clearance by lymphocytes is Na(+)-dependent and inhibited by the serotonin-selective reuptake inhibitor paroxetine (Paxil®), indicative of active uptake by serotonin transporters. Moreover, reductions in serotonin uptake rates are evident in lymphocytes from monkeys with one or two copies of the short 's' allele of the rh5-HTTLPR (s/s<s/l<l/l). These findings illustrate that rh5-HTTLPR-related alterations in serotonin uptake are present during adulthood in peripheral blood cells natively expressing serotonin transporters. Moreover, they suggest that lymphocytes can be used as peripheral biomarkers for investigating genetic or pharmacologic alterations in serotonin transporter function. Use of boron-doped diamond microelectrodes for measuring serotonin uptake, in contrast to carbon fiber microelectrodes used previously in the brain, enabled these high-sensitivity and high-resolution measurements. Boron-doped diamond microelectrodes show excellent signal-to-noise and signal-to-background ratios due mainly to low background currents and are highly resistant to fouling when exposed to lymphocytes or high concentrations of serotonin.
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Affiliation(s)
| | | | | | | | | | - Greg M. Swain
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824
| | - Bhavik A. Patel
- Department of Bioengineering, Imperial College London, London, U.K. SE7 2AZ
| | - Anne M. Andrews
- Departments of Chemistry,
- Veterinary and Biomedical Sciences,
- Huck Institutes of Life Sciences
- Department of Psychiatry & Biobehavioral Sciences and California NanoSystems Institute, University of California, Los Angeles, California 90024
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Güell AG, Meadows KE, Unwin PR, Macpherson JV. Trace voltammetric detection of serotonin at carbon electrodes: comparison of glassy carbon, boron doped diamond and carbon nanotube network electrodes. Phys Chem Chem Phys 2010; 12:10108-14. [DOI: 10.1039/c0cp00675k] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Perry M, Li Q, Kennedy RT. Review of recent advances in analytical techniques for the determination of neurotransmitters. Anal Chim Acta 2009; 653:1-22. [PMID: 19800472 PMCID: PMC2759352 DOI: 10.1016/j.aca.2009.08.038] [Citation(s) in RCA: 248] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Revised: 08/25/2009] [Accepted: 08/27/2009] [Indexed: 12/18/2022]
Abstract
Methods and advances for monitoring neurotransmitters in vivo or for tissue analysis of neurotransmitters over the last five years are reviewed. The review is organized primarily by neurotransmitter type. Transmitter and related compounds may be monitored by either in vivo sampling coupled to analytical methods or implanted sensors. Sampling is primarily performed using microdialysis, but low-flow push-pull perfusion may offer advantages of spatial resolution while minimizing the tissue disruption associated with higher flow rates. Analytical techniques coupled to these sampling methods include liquid chromatography, capillary electrophoresis, enzyme assays, sensors, and mass spectrometry. Methods for the detection of amino acid, monoamine, neuropeptide, acetylcholine, nucleoside, and soluble gas neurotransmitters have been developed and improved upon. Advances in the speed and sensitivity of these methods have enabled improvements in temporal resolution and increased the number of compounds detectable. Similar advances have enabled improved detection at tissue samples, with a substantial emphasis on single cell and other small samples. Sensors provide excellent temporal and spatial resolution for in vivo monitoring. Advances in application to catecholamines, indoleamines, and amino acids have been prominent. Improvements in stability, sensitivity, and selectivity of the sensors have been of paramount interest.
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Affiliation(s)
- Maura Perry
- University of Michigan, Department of Chemistry, 930 N. University, Ann Arbor, MI 48109-1055, USA
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22
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Herzog G, McMahon B, Lefoix M, Mullins ND, Collins CJ, Moynihan HA, Arrigan DW. Electrochemistry of dopamine at the polarised liquid|liquid interface facilitated by an homo-oxo-calix[3]arene ionophore. J Electroanal Chem (Lausanne) 2008. [DOI: 10.1016/j.jelechem.2008.05.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Njagi J, Ispas C, Andreescu S. Mixed ceria-based metal oxides biosensor for operation in oxygen restrictive environments. Anal Chem 2008; 80:7266-74. [PMID: 18720950 DOI: 10.1021/ac800808a] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The unique catalytic, electrochemical, and oxygen storage properties of ceria and mixed ceria/titania hybrid composites were used to fabricate a new type of electrochemical enzyme biosensor. These materials provided increased analytical performance and possibilities for operation in oxygen-free conditions of an oxidase enzyme biosensor using tyrosinase as a model example. The investigation of the enzymatic reaction in the presence and absence of oxygen was first carried out using cyclic voltammetry. The results were used to identify the role of each metal oxide in the immobilization matrix and fabricate a simple amperometric tyrosinase biosensor for the detection of phenol and dopamine. The biosensor was optimized and characterized with respect to response time, detection limit, linear concentration range, sensitivity, and kinetic parameters. The detection limit for phenol was in the nanomolar range, with a detection limit of 9.0 x 10(-9) M and a sensitivity of 86 mA M(-1) in the presence of oxygen and of 5.6 x 10(-9) M and a sensitivity of 65 mA M(-1) in the absence of oxygen. The optimized biosensor also showed selective determination of the neurotransmitter dopamine with a detection limit of 3.4 x 10(-8) M and a sensitivity of 14.9 mA M(-1) in the presence of oxygen and of 4.2 x 10(-8) M and 14.8 mA M(-1) in the absence of oxygen. This strategy shows promise for increasing the sensitivity of oxidase enzyme sensors and provides opportunities for operation in oxygen limited conditions. It can also be extended for the development of other enzyme biosensors.
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Affiliation(s)
- John Njagi
- Department of Chemistry and Biomolecular Science, Clarkson University Potsdam, New York 13699-5810, USA
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24
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Patel BA. Continuous amperometric detection of co-released serotonin and melatonin from the mucosa in the ileum. Analyst 2008; 133:516-24. [PMID: 18365122 DOI: 10.1039/b717034c] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Serotonin (5-HT) and melatonin (MEL) are well known neurotransmitters and paracrine signalling molecules. Both compounds are present in enterochromaffin (EC) cells in the mucosa of the gastrointestinal tract and are thought to play a role in controlling gut motility. To date there are no real-time analytical methods for the detection of these two molecules and it is not clear if MEL is actually released from the EC cells. In this paper, I used boron-doped diamond (BDD) microelectrodes to record 5-HT and MEL overflow from EC cells in the mucosa of rabbit ileum. The BDD microelectrode was extremely stable and sensitive for measurements of both compounds when assessed using differential pulse voltammetry (DPV) and flow injection analysis (FIA) using amperometric detection. MEL release was detected in the mucosa, where it is most likely from the EC cells. Mechanical stimulation of individual villi increased 5-HT but not MEL overflow. Application of the serotonin transporter (SERT) inhibitor, fluoxetine, elevated the 5-HT but not the MEL signal. Differences in the amounts of the two gastrointestinal compounds released and the mechanism of which they are released will provide insights to the physiology of the EC cell and disease states.
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Affiliation(s)
- Bhavik Anil Patel
- Department of Bioengineering, Imperial College London, London, UKSW7 2AZ.
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Amiri M, Shahrokhian S, Marken F. Ultrathin Carbon Nanoparticle Composite Film Electrodes: Distinguishing Dopamine and Ascorbate. ELECTROANAL 2007. [DOI: 10.1002/elan.200703825] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Xiang L, Lin Y, Yu P, Su L, Mao L. Laccase-catalyzed oxidation and intramolecular cyclization of dopamine: A new method for selective determination of dopamine with laccase/carbon nanotube-based electrochemical biosensors. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2006.11.040] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Kachoosangi RT, Compton RG. A simple electroanalytical methodology for the simultaneous determination of dopamine, serotonin and ascorbic acid using an unmodified edge plane pyrolytic graphite electrode. Anal Bioanal Chem 2007; 387:2793-800. [PMID: 17377780 DOI: 10.1007/s00216-007-1129-y] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2006] [Revised: 01/08/2007] [Accepted: 01/12/2007] [Indexed: 10/23/2022]
Abstract
A simple method using an unmodified edge plane pyrolytic graphite electrode (EPPGE) is reported for the simultaneous determination of dopamine (DA), serotonin (ST) and ascorbic acid (AA). The performance of this electrode is superior to other unmodified carbon-based electrodes and also to many modified electrodes in terms of detection limit, sensitivity and peak separation for determination of DA, ST and AA. Using this method, detection limits of 90 nM, 60 nM and 200 nM were obtained for DA, ST and AA respectively. No electrode fouling is observed during a set of experiments and good sensitivity is obtained for the simultaneous determination of DA, ST and AA. The peaks for the three species are well resolved from each other and the electrode is successfully utilised for their determination in standard and real samples.
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