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Hassani-Marand M, Fahimi-Kashani N, Hormozi-Nezhad MR. Machine-learning assisted multiplex detection of catecholamine neurotransmitters with a colorimetric sensor array. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1123-1134. [PMID: 36756908 DOI: 10.1039/d2ay01797k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Catecholamine neurotransmitters (CNs), such as dopamine (DA), epinephrine (EP), norepinephrine (NEP), and levodopa (LD), are recognized as the primary biomarkers of a variety of neurological illnesses. Therefore, simultaneous monitoring of these biomarkers is highly recommended for clinical diagnosis and treatment. In this study, a high-performance colorimetric artificial tongue has been proposed for the multiplex detection of CNs. Different aggregation behaviors of gold nanoparticles in the presence of CNs under various buffering conditions generate unique fingerprint response patterns. Under various buffering conditions, the distinct acidity constants of CNs, and consequently their predominant species at a given pH, drive the aggregation of gold nanoparticles (AuNPs). The utilization of machine learning algorithms in this design enables classification and quantification of CNs in various samples. The response profile of the array was analyzed using the linear discriminant analysis algorithm for classification of CNs. This colorimetric sensor array is capable of accurately distinguishing between individual neurotransmitters and their combinations. Partial least squares regression was also applied for quantitation purposes. The obtained analytical figures of merit (FOMs) and linear ranges of 0.6-9 μM (R2 = 0.99) for DA, 0.1-10 μM (R2 = 0.99) for EP, 0.1-9 μM (R2 = 0.99) for NEP and 1-70 μM (R2 = 0.99) for LD demonstrated the potential applicability of the developed sensor array in precise and accurate determination of CNs. Finally, the feasibility of the array was validated in human urine samples as a complex biological fluid with LODs of 0.3, 0.5, 0.2, and 1.9 μM for DA, EP, NEP, and LD, respectively.
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Affiliation(s)
- M Hassani-Marand
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, 14588-89694, Iran
| | - N Fahimi-Kashani
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - M R Hormozi-Nezhad
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, 14588-89694, Iran
- Department of Chemistry, Sharif University of Technology, Tehran, 11155-9516, Iran.
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2
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Abstract
This study examines how the several major industries, associated with a carbon artifact production, essentially belong to one, closely knit family. The common parents are the geological fossils called petroleum and coal. The study also reviews the major developments in carbon nanotechnology and electrocatalysis over the last 30 years or so. In this context, the development of various carbon materials with size, dopants, shape, and structure designed to achieve high catalytic electroactivity is reported, and among them recent carbon electrodes with many important features are presented together with their relevant applications in chemical technology, neurochemical monitoring, electrode kinetics, direct carbon fuel cells, lithium ion batteries, electrochemical capacitors, and supercapattery.
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Affiliation(s)
- César A C Sequeira
- CeFEMA, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
- CeFEMA, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
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3
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Zeng J, Xu R, Jiao L, Wang Y, Chen L, Windle CD, Ding X, Zhang Z, Han Q, Qu L. A 3D-graphene fiber electrode embedded with nitrogen-rich-carbon-coated ZIF-67 for the ultrasensitive detection of adrenaline. J Mater Chem B 2020; 7:5291-5295. [PMID: 31464334 DOI: 10.1039/c9tb01223k] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A novel nitrogen-rich-carbon-coated ZIF-67 embedded three-dimensional-graphene (ZIF-67/NC/3DG) fiber was fabricated via a facile one-pot electrodeposition self-assembly method, and used as a prominent electrode for the non-enzymatic detection of adrenaline (Ad). In this design, the prepared ZIF-67 adsorbs Ad through hydrogen bonding and electrostatic interaction, while polypyrrole functions as the precursor of the conductive NC that seamlessly connects ZIF-67 with the 3DG fiber electrode to ameliorate the poor conductivity of the ZIF-67 moiety and thus improve the sensitivity of the ZIF-67/NC/3DG fiber electrode for detecting Ad. The constructed fiber sensor shows a double linear response over the Ad concentration range of 0.06-95 μM with a high sensitivity of 44.6 mA mM-1 cm-2 and 95.0-5900 μM with a good sensitivity of 11.0 mA mM-1 cm-2, giving a low detection limit of 0.02 μM and excellent repeatability. The ZIF-67/NC/3DG fiber electrode was further successfully applied for the determination of Ad in a real sample of human serum, indicating that this fiber electrode is a promising miniaturized sensor for electrochemical analysis.
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Affiliation(s)
- Jinfeng Zeng
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Ruoyu Xu
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Le Jiao
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Yuze Wang
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Liwei Chen
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Christopher D Windle
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Xiaoteng Ding
- College of Life Sciences, Qingdao University, Qingdao 266071, P. R. China
| | - Zhipan Zhang
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Qing Han
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Liangti Qu
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
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He C, Tao M, Zhang C, He Y, Xu W, Liu Y, Zhu W. Microelectrode-Based Electrochemical Sensing Technology for in Vivo Detection of Dopamine: Recent Developments and Future Prospects. Crit Rev Anal Chem 2020; 52:544-554. [PMID: 32852227 DOI: 10.1080/10408347.2020.1811946] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Dopamine (DA) is an essential type of neurotransmitter in the central nervous system. DA neurons usually exist as nuclei which are mainly found in the ventral tegmental area (VTN) and substantia nigra pars compacta (SNc). Parkinson's disease, epilepsy, schizophrenia and other diseases are all related to the abnormal metabolism of DA. Compared with traditional DA detection methods such as spectrophotometry and electrophoresis, electrochemical sensing technology has high detection efficiency, high sensitivity, fast and convenient real-time detection, which is recognized as the most effective method for measuring neurotransmitters in vivo. The working electrode of an electrochemical sensor can be generally divided into the conventional electrode and the microelectrode according to its size. The microelectrode shows excellent properties such as high sensitivity, high temporal resolution, and high spatial resolution while detecting DA, which makes it possible to detect neurotransmitters in vivo. In order to further investigate the role of DA in regulating action, emotion, and cognition, and to further clarify the relationship between DA abnormalities or lack and neurological diseases such as Parkinson, more and more researchers apply microelectrode-based electrochemistry sensing technology to detect DA in vivo. This article reviews recent applications of microelectrodes and the latest researches in DA detection in vivo, focusing on the following three types of microelectrodes: (1) non-nanomaterial-modified carbon fiber microelectrodes (CFE); (2) nanomaterial-modified microelectrodes; (3) microelectrode arrays (MEA).
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Affiliation(s)
- Cailing He
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Mengdan Tao
- School of Pharmacy, Nanjing Medical University, Nanjing, China.,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Chenxi Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Yifang He
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Wei Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Yan Liu
- School of Pharmacy, Nanjing Medical University, Nanjing, China.,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Wanying Zhu
- School of Pharmacy, Nanjing Medical University, Nanjing, China.,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
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A novel modification method via in-situ reduction of AuAg bimetallic nanoparticles by polydopamine on carbon fiber microelectrode for H2O2 detection. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104595] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Ultra-selective fiber optic SPR platform for the sensing of dopamine in synthetic cerebrospinal fluid incorporating permselective nafion membrane and surface imprinted MWCNTs-PPy matrix. Biosens Bioelectron 2019; 133:205-214. [DOI: 10.1016/j.bios.2019.03.023] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 03/05/2019] [Accepted: 03/12/2019] [Indexed: 01/21/2023]
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Li M, Zhao B, Deng M, Lin C, Zhang Y, Zhou Y, Shi J, Wang L, Zuo X, Fan C, Li Q. Programming biosensing sensitivity by controlling the dimension of nanostructured electrode. Anal Bioanal Chem 2018; 411:4085-4092. [PMID: 30155704 DOI: 10.1007/s00216-018-1333-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 08/06/2018] [Accepted: 08/17/2018] [Indexed: 10/28/2022]
Abstract
Development of new nanostructured materials has shown high impact for improving the performance of chemical and biological sensors. In this work, we show that by controlling the dimensions of the gold flower microelectrode (GFME), it is possible to regulate detection sensitivity of a sensor for rapid analysis of chemical species. A ~13-fold increase in sensitivity was achieved by enlarging the dimension of GFMEs from 70 to 330 μm, whereas the response dynamics are dimension-independent, with the signal attaining saturation ~20 s. Due to the intrinsic nanostructure on the microelectrode surface, our GFME exhibits excellent anti-interference property when applied to detect dopamine (DA) in the presence of 10-fold excess of ascorbic acid (AA). The regulable sensitivity, fast response dynamics, and excellent anti-interference property will make GFME an ideal sensing platform for biomedical applications. Graphical abstract ᅟ.
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Affiliation(s)
- Min Li
- Division of Physical Biology & Bioimaging Center, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai, 201800, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bin Zhao
- Division of Physical Biology & Bioimaging Center, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai, 201800, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mengying Deng
- Division of Physical Biology & Bioimaging Center, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai, 201800, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chenglie Lin
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan, China
| | - Yueyue Zhang
- Division of Physical Biology & Bioimaging Center, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai, 201800, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yi Zhou
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan, China
| | - Jiye Shi
- UCB Pharma, 208 Bath Road, Slough, Berkshire, SL1 3WE, UK
| | - Lihua Wang
- Division of Physical Biology & Bioimaging Center, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai, 201800, China
| | - Xiaolei Zuo
- Division of Physical Biology & Bioimaging Center, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai, 201800, China.,Institute of Molecular Medicine, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Chunhai Fan
- Division of Physical Biology & Bioimaging Center, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai, 201800, China
| | - Qian Li
- Division of Physical Biology & Bioimaging Center, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai, 201800, China.
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Barlow ST, Louie M, Hao R, Defnet PA, Zhang B. Electrodeposited Gold on Carbon-Fiber Microelectrodes for Enhancing Amperometric Detection of Dopamine Release from Pheochromocytoma Cells. Anal Chem 2018; 90:10049-10055. [PMID: 30047726 PMCID: PMC10879420 DOI: 10.1021/acs.analchem.8b02750] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Exocytosis is an ultrafast cellular process which facilitates neuron-neuron communication in the brain. Microelectrode electrochemistry has been an essential tool for measuring fast exocytosis events with high temporal resolution and high sensitivity. Due to carbon fiber's irreproducible and inhomogeneous surface conditions, however, it is often desirable to develop simple and reproducible modification schemes to enhance a microelectrode's analytical performance for single-cell analysis. Here we present carbon-fiber microelectrodes (CFEs) modified with a thin film of electrodeposited gold for the detection of exocytosis from rat pheochromocytoma cells (PC12), a model cell line for neurosecretion. These new probes are made by a novel voltage-pulsing deposition procedure and demonstrate improved electron-transfer characteristics for catecholamine oxidation, and their fabrication is tractable for many different probe designs. When we applied the probes to the detection of catecholamine release, we found that they outperformed unmodified CFEs. Further, the improved performance was conserved at cells incubated with L-DOPA (l-3,4-dihydroxyphenylalanine), a precursor to dopamine that increases the quantal size of the release events. Future use of this method may allow nanoelectrodes to be modified for highly sensitive detection of exocytosis from chemical synapses.
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Affiliation(s)
- Samuel T. Barlow
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Matthew Louie
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Rui Hao
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Peter A. Defnet
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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9
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Silambarasan K, Joseph J. Electrochemical Diagnosis of Chemical Switch: Impact of Structural Changes on Charge Transport Mechanism of “Redox Anion Bound Polysilsesquioxane” Film. ChemElectroChem 2018. [DOI: 10.1002/celc.201800799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - James Joseph
- Electrodics and Electrocatalysis division; Central Electrochemical Research Institute; Karaikudi India
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10
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Won SM, Song E, Zhao J, Li J, Rivnay J, Rogers JA. Recent Advances in Materials, Devices, and Systems for Neural Interfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1800534. [PMID: 29855089 DOI: 10.1002/adma.201800534] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 02/28/2018] [Indexed: 06/08/2023]
Abstract
Technologies capable of establishing intimate, long-lived optical/electrical interfaces to neural systems will play critical roles in neuroscience research and in the development of nonpharmacological treatments for neurological disorders. The development of high-density interfaces to 3D populations of neurons across entire tissue systems in living animals, including human subjects, represents a grand challenge for the field, where advanced biocompatible materials and engineered structures for electrodes and light emitters will be essential. This review summarizes recent progress in these directions, with an emphasis on the most promising demonstrated concepts, materials, devices, and systems. The article begins with an overview of electrode materials with enhanced electrical and/or mechanical performance, in forms ranging from planar films, to micro/nanostructured surfaces, to 3D porous frameworks and soft composites. Subsequent sections highlight integration with active materials and components for multiplexed addressing, local amplification, wireless data transmission, and power harvesting, with multimodal operation in soft, shape-conformal systems. These advances establish the foundations for scalable architectures in optical/electrical neural interfaces of the future, where a blurring of the lines between biotic and abiotic systems will catalyze profound progress in neuroscience research and in human health/well-being.
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Affiliation(s)
- Sang Min Won
- Department of Electrical and Computer Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana Champaign, Urbana, IL, 61801, USA
| | - Enming Song
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana Champaign, Northwestern University, Evanston, IL, 60208, USA
| | - Jianing Zhao
- Department of Mechanical Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana Champaign, Urbana, IL, 61801, USA
| | - Jinghua Li
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana Champaign, Northwestern University, Evanston, IL, 60208, USA
| | - Jonathan Rivnay
- Department of Biomedical Engineering, Simpson Querrey Institute for Nanobiotechnology, Northwestern University, Evanston, IL, 60208, USA
| | - John A Rogers
- Center for Bio-Integrated Electronics, Department of Materials Science and Engineering, Biomedical Engineering, Chemistry, Mechanical Engineering, Electrical Engineering and Computer Science, and Neurological Surgery, Simpson Querrey Institute for Nano/biotechnology, McCormick School of Engineering and Feinberg School of Medicine, Northwestern University, Evanston, IL, 60208, USA
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Gupta M, Lee HI. A Pyrene Derived CO2-Responsive Polymeric Probe for the Turn-On Fluorescent Detection of Nerve Agent Mimics with Tunable Sensitivity. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01200] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Moumita Gupta
- Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Hyung-il Lee
- Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea
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12
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Jafarinejad S, Ghazi-Khansari M, Ghasemi F, Sasanpour P, Hormozi-Nezhad MR. Colorimetric Fingerprints of Gold Nanorods for Discriminating Catecholamine Neurotransmitters in Urine Samples. Sci Rep 2017; 7:8266. [PMID: 28811657 PMCID: PMC5557886 DOI: 10.1038/s41598-017-08704-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 07/17/2017] [Indexed: 11/09/2022] Open
Abstract
Catecholamine neurotransmitters, generally including dopamine (DA), epinephrine (EP) and norepinephrine (NE) are known as substantial indicators of various neurological diseases. Simultaneous detection of these compounds and their metabolites is highly recommended in early clinical diagnosis. To this aim, in the present contribution, a high performance colorimetric sensor array has been proposed for the detection and discrimination of catecholamines based on their reducing ability to deposit silver on the surface of gold nanorods (AuNRs). The amassed silver nanoshell led to a blue shift in the longitudinal localized surface plasmon resonance (LSPR) peak of AuNRs, creating a unique pattern for each of the neurotransmitters. Hierarchical cluster analysis (HCA) and linear discriminate analysis (LDA) pattern recognition techniques were employed to identify DA, EP and NE. The proposed colorimetric array is able to differentiate among individual neurotransmitters as well as their mixtures, successfully. Finally, it was shown that the sensor array can identify these neurotransmitters in human urine samples.
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Affiliation(s)
- Somayeh Jafarinejad
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahmoud Ghazi-Khansari
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, P.O. Box, 13145-784, Tehran, Iran
| | - Forough Ghasemi
- Department of Chemistry, Sharif University of Technology, Tehran, 11155-9516, Iran
| | - Pezhman Sasanpour
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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The Electrochemical Behavior of Carbon Fiber Microelectrodes Modified with Carbon Nanotubes Using a Two-Step Electroless Plating/Chemical Vapor Deposition Process. SENSORS 2017; 17:s17040725. [PMID: 28358344 PMCID: PMC5421685 DOI: 10.3390/s17040725] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 03/18/2017] [Accepted: 03/28/2017] [Indexed: 12/21/2022]
Abstract
Carbon fiber microelectrode (CFME) has been extensively applied in the biosensor and chemical sensor domains. In order to improve the electrochemical activity and sensitivity of the CFME, a new CFME modified with carbon nanotubes (CNTs), denoted as CNTs/CFME, was fabricated and investigated. First, carbon fiber (CF) monofilaments grafted with CNTs (simplified as CNTs/CFs) were fabricated in two key steps: (i) nickel electroless plating, followed by (ii) chemical vapor deposition (CVD). Second, a single CNTs/CF monofilament was selected and encapsulated into a CNTs/CFME with a simple packaging method. The morphologies of as-prepared CNTs/CFs were characterized by scanning electron microscopy. The electrochemical properties of CNTs/CFMEs were measured in potassium ferrocyanide solution (K₄Fe(CN)₆), by using a cyclic voltammetry (CV) and a chronoamperometry method. Compared with a bare CFME, a CNTs/CFME showed better CV curves with a higher distinguishable redox peak and response current; the higher the CNT content was, the better the CV curves were. Because the as-grown CNTs significantly enhanced the effective electrode area of CNTs/CFME, the contact area between the electrode and reactant was enlarged, further increasing the electrocatalytic active site density. Furthermore, the modified microelectrode displayed almost the same electrochemical behavior after 104 days, exhibiting remarkable stability and outstanding reproducibility.
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14
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Using gold nanostars modified pencil graphite electrode as a novel substrate for design a sensitive and selective Dopamine aptasensor. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 73:700-708. [PMID: 28183663 DOI: 10.1016/j.msec.2016.12.119] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 12/02/2016] [Accepted: 12/22/2016] [Indexed: 01/01/2023]
Abstract
For the first time, gold nanostars (GNS) were applied for electrostatic and covalent immobilizing a thiol modified Dopamine aptamer on the pencil graphite electrode and signal amplification. Dopamine aptamer was immobilized on the gold nanostars through electrostatic interaction between negatively charged phosphate groups of aptamer and positively charged gold nanostars and AuS well known covalent interaction. In the presence of Dopamine in the test solution, the charge transfer resistance (RCT) on the electrode surface increased with the increase of the Dopamine concentration due to specific interaction between Dopamine aptamer and Dopamine molecules, which made a barrier for electrons and inhibited the electron-transfer. So, the proposed approach showed a high sensitivity and a wide linearity to Dopamine in the range from 1.0 (±0.1) to 100.0 (±0.3) ngL-1 (ppt) with detection and quantification limits of 0.29 (±0.10) and 0.90 (±0.08) ngL-1 (ppt), respectively. Finally, the sensor was successfully used for determination of Dopamine in biological (human blood plasma and urine) samples. The results open up the path for manufacturing cost effective aptasensors for other biomedical applications.
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15
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A novel nitrogen-doped graphene fiber microelectrode with ultrahigh sensitivity for the detection of dopamine. Electrochem commun 2016. [DOI: 10.1016/j.elecom.2016.09.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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16
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Yu L, Zhang Q, Xu Q, Jin D, Jin G, Li K, Hu X. Electrochemical detection of nitrate in PM 2.5 with a copper-modified carbon fiber micro-disk electrode. Talanta 2015; 143:245-253. [DOI: 10.1016/j.talanta.2015.04.049] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/14/2015] [Accepted: 04/17/2015] [Indexed: 11/26/2022]
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17
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Shen M, Colombo ML. Electrochemical nanoprobes for the chemical detection of neurotransmitters. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2015; 7:7095-7105. [PMID: 26327927 PMCID: PMC4551492 DOI: 10.1039/c5ay00512d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Neurotransmitters, acting as chemical messengers, play an important role in neurotransmission, which governs many functional aspects of nervous system activity. Electrochemical probes have proven a very useful technique to study neurotransmission, especially to quantify and qualify neurotransmitters. With the emerging interests in probing neurotransmission at the level of single cells, single vesicles, as well as single synapses, probes that enable detection of neurotransmitters at the nanometer scale become vitally important. Electrochemical nanoprobes have been successfully employed in nanometer spatial resolution imaging of single nanopores of Si membrane and single Au nanoparticles, providing both topographical and chemical information, thus holding great promise for nanometer spatial study of neurotransmission. Here we present the current state of electrochemical nanoprobes for chemical detection of neurotransmitters, focusing on two types of nanoelectrodes, i.e. carbon nanoelectrode and nano-ITIES pipet electrode.
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Affiliation(s)
- Mei Shen
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Matthews Avenue, Urbana, Illinois 61801, USA. Tel: +1 (217) 300 3587
| | - Michelle L. Colombo
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Matthews Avenue, Urbana, Illinois 61801, USA. Tel: +1 (217) 300 3587
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18
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Liu Y, Liu S, Chen R, Zhan W, Ni H, Liang F. An Antibacterial Nonenzymatic Glucose Sensor Composed of Carbon Nanotubes Decorated with Silver Nanoparticles. ELECTROANAL 2015. [DOI: 10.1002/elan.201400568] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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20
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Wang J, Shi A, Fang X, Han X, Zhang Y. Ultrasensitive electrochemical supersandwich DNA biosensor using a glassy carbon electrode modified with gold particle-decorated sheets of graphene oxide. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1182-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Zhu Z, Wang F, Wang F, Xi L. Simultaneous determination of methotrexate and calcium folinate with electrochemical method based on a poly-ABSA/functionalized MWNTs composite film modified electrode. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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High sensitive and selective HPTLC method assisted by digital image processing for simultaneous determination of catecholamines and related drugs. Talanta 2013; 114:117-23. [DOI: 10.1016/j.talanta.2013.03.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 03/15/2013] [Accepted: 03/25/2013] [Indexed: 11/20/2022]
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23
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Xu J, Zhang L, Chen G. Fabrication of a magnet-assisted alignment device for the amperometric detection of capillary electrophoresis using a carbon nanotube/polypropylene composite electrode. Electrophoresis 2013; 34:2017-24. [DOI: 10.1002/elps.201200443] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 09/03/2012] [Accepted: 09/04/2012] [Indexed: 01/06/2023]
Affiliation(s)
- Junchao Xu
- School of Pharmacy; Fudan University; Shanghai; China
| | - Luyan Zhang
- School of Pharmacy; Fudan University; Shanghai; China
| | - Gang Chen
- School of Pharmacy; Fudan University; Shanghai; China
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24
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Biswal J, Misra N, Borde LC, Sabharwal S. Synthesis of silver nanoparticles in methacrylic acid solution by gamma radiolysis and their application for estimation of dopamine at low concentrations. Radiat Phys Chem Oxf Engl 1993 2013. [DOI: 10.1016/j.radphyschem.2012.10.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Zhu Z, Wu H, Wu S, Huang Z, Zhu Y, Xi L. Determination of methotrexate and folic acid by ion chromatography with electrochemical detection on a functionalized multi-wall carbon nanotube modified electrode. J Chromatogr A 2013; 1283:62-7. [PMID: 23415142 DOI: 10.1016/j.chroma.2013.01.085] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 01/16/2013] [Accepted: 01/22/2013] [Indexed: 11/28/2022]
Abstract
A simple and sensitive method was developed for simultaneous determination of methotrexate (MTX) and folic acid (FA) by ion chromatography with electrochemical detection (IC-ECD). Quaternary amine functionalized multi-wall carbon nanotubes (q-MWNTs) modified glassy carbon electrode (GCE) was used as an amperometric sensor to determine MTX and FA. The electrochemical behaviors of MTX and FA at the q-MWNTs/GCE were studied by cyclic voltammetry (CV). Results indicated that this modified electrode exhibited electrocatalytic oxidation toward MTX and FA with high sensitivity, stability and long life. Good separation of MTX and FA was demonstrated by IC on an anion-exchange column with phosphate buffer solution (PBS) as eluent. Under the optimal conditions, the linear ranges were from 0.01 to 20mg/L for both MTX and FA with correlation coefficients r ≥ 0.9994. The obtained detection limits (LODs) for MTX and FA were 0.2 and 0.4 μg/L (S/N=3), respectively. The method has been successfully applied to the determination of MTX and FA in plasma and urine of patients of rheumatoid arthritis.
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Affiliation(s)
- Zuoyi Zhu
- Department of Chemistry, Xixi Campus, Zhejiang University, Hangzhou 310028, China
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26
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Voltammetry of nanomolar leveled environmental hazards on the polymer/CNT coated electrodes. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2012.11.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Chen R, Li Y, Huo K, Chu PK. Microelectrode arrays based on carbon nanomaterials: emerging electrochemical sensors for biological and environmental applications. RSC Adv 2013. [DOI: 10.1039/c3ra43033b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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28
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Wen H, Bambhania HM, Calabrese Barton S. Carbon nanotube-modified biocatalytic microelectrodes with multiscale porosity. J APPL ELECTROCHEM 2012. [DOI: 10.1007/s10800-012-0381-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Electrochemical imprinted sensor for determination of oleanic acid based on poly (sodium 4-styrenesulfonate-co-acrylic acid)-grafted multi-walled carbon nanotubes-chitosan and cobalt hexacyanoferrate nanoparticles. Biosens Bioelectron 2012; 31:190-6. [DOI: 10.1016/j.bios.2011.10.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Revised: 10/08/2011] [Accepted: 10/11/2011] [Indexed: 12/16/2022]
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30
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Abstract
Applications of Nanomedicine. A Comprehensive Overview of the Development and Prospects of Nanobiotechnology in China. Nanobiotechnology in the Republic of Korea. Nanomedicine: Prospective Diagnostic and Therapeutic Potentials. Nanotechnology: What it is and how it can be Applied in Healthcare.
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31
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Facile Preparation of Carbon Nanotube/Poly(ethyl 2-cyanoacrylate) Composite Electrode by Water-Vapor-Initiated Polymerization for Enhanced Amperometric Detection. Chemistry 2011; 17:12458-64. [DOI: 10.1002/chem.201101758] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Indexed: 11/07/2022]
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32
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Wen H, Nallathambi V, Chakraborty D, Calabrese Barton S. Carbon fiber microelectrodes modified with carbon nanotubes as a new support for immobilization of glucose oxidase. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0684-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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33
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Zhu M, Zeng C, Ye J. Graphene-Modified Carbon Fiber Microelectrode for the Detection of Dopamine in Mice Hippocampus Tissue. ELECTROANAL 2011. [DOI: 10.1002/elan.201000712] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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34
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Kong F, Liu H, Dong J, Qian W. Growth-sensitive gold nanoshells precursor nanocomposites for the detection of l-DOPA and tyrosinase activity. Biosens Bioelectron 2011; 26:1902-7. [DOI: 10.1016/j.bios.2010.03.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Revised: 03/24/2010] [Accepted: 03/25/2010] [Indexed: 11/25/2022]
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Adams KL, Jena BK, Percival SJ, Zhang B. Highly Sensitive Detection of Exocytotic Dopamine Release Using a Gold-Nanoparticle-Network Microelectrode. Anal Chem 2010; 83:920-7. [DOI: 10.1021/ac102599s] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Kelly L. Adams
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Bikash Kumar Jena
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Stephen J. Percival
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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36
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Xu S, Zhang X, Wan T, Zhang C. A third-generation hydrogen peroxide biosensor based on horseradish peroxidase cross-linked to multi-wall carbon nanotubes. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0479-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Yeh JI, Shi H. Nanoelectrodes for biological measurements. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2010; 2:176-88. [PMID: 20073052 DOI: 10.1002/wnan.70] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nanoelectrodes are electrodes with a critical dimension in the range of one to hundreds of nanometers and include individual electrodes, nanoelectrode ensembles, and arrays. Metallic nanowires, carbon nanotubes, magnetic nanoparticles, and metal oxide nanowires have been employed to fabricate nanoelectrodes and platforms. In this review, applications of single electrodes, nanoelectrode arrays, and ensembles are briefly evaluated, with emphasis on biological analysis. Nanoelectrodes offer great advantages in numerous areas of biological investigations, particularly in single cells studies, fabrication of microchips, design of coordinated biosensors, and in addressable patterned electrodes. Consequently, nanoelectrodes have immense potential in the development of efficient, specific, sensitive, and intelligent sensors. In conjunction with the rapidly evolving, cost-effective fabrication and materials development approaches, these sensors can be used as direct, point-of-care clinical devices, enabling more personalized medical care. The development and application of nanodevices in biology and medicine will have enormous implications for society and human health.
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Affiliation(s)
- Joanne I Yeh
- Department of Structural Biology and Department of Bioengineering, University of Pittsburgh Medical School, BST3 1040, 3501 5th Avenue, Pittsburgh, PA 15260, USA.
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38
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Pham XH, Bui MPN, Li CA, Han KN, Kim JH, Won H, Seong GH. Electrochemical characterization of a single-walled carbon nanotube electrode for detection of glucose. Anal Chim Acta 2010; 671:36-40. [DOI: 10.1016/j.aca.2010.05.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Revised: 05/02/2010] [Accepted: 05/05/2010] [Indexed: 11/24/2022]
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39
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Cui HF, Cui YH, Sun YL, Zhang K, Zhang WD. Enhancement of dopamine sensing by layer-by-layer assembly of PVI-dmeOs and Nafion on carbon nanotubes. NANOTECHNOLOGY 2010; 21:215601. [PMID: 20431203 DOI: 10.1088/0957-4484/21/21/215601] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this study, carbon nanotubes (CNTs) were modified to further improve their performance in electrochemical sensing of dopamine (DA) levels. After a redox polymer, poly(vinylimidazole) complexed with Os(4, 4'-dimethyl- 2, 2-bipyridine)(2)Cl (termed PVI-dmeOs) was electrodeposited on multi-wall CNTs (MWCNTs), Nafion and PVI-dmeOs films were successfully layer-by-layer (LBL) assembled on the hydrophilic surface of the as-prepared PVI-dmeOs/CNTs nanocomposites through electrostatic interactions. The LBL assembly was proved by scanning electron microscopy (SEM), electrochemistry and UV-vis spectroscopy measurements. LBL assembly of Nafion/PVI-dmeOs films on CNTs significantly enhanced their linear sweep voltammetry (LSV) response sensitivity to DA, with a maximum enhancement for three Nafion/PVI-dmeOs film-modified MWCNTs. The LSV peak current density of (Nafion/PV I-dmeOs)(3)/CNT electrodes in response to 10 and 50 microM DA solutions was about 7.3 and 3.9 times those for bare CNTs. At the (Nafion/PV I-dmeOs)(3)/CNT electrodes, the limit of detection (LOD) (signal-to-noise ratio: 3) was 0.05 microM DA, the linear range was 0.1-10 microM DA (with a linear regression coefficient of 0.97) and the DA-sensing sensitivity was 8.15 microA cm( - 2) microM( - 1). The newly fabricated (Nafion/PV I-dmeOs)(3)/CNT electrodes may be developed as an ideal biosensor for direct and in situ measurement of DA levels.
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Affiliation(s)
- Hui-Fang Cui
- Department of Bioengineering, Zhengzhou University, 100# Science Avenue, Zhengzhou 450001, People's Republic of China
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40
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Zhao X, Lu X, Tze WTY, Wang P. A single carbon fiber microelectrode with branching carbon nanotubes for bioelectrochemical processes. Biosens Bioelectron 2010; 25:2343-50. [PMID: 20418089 DOI: 10.1016/j.bios.2010.03.030] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Revised: 03/19/2010] [Accepted: 03/24/2010] [Indexed: 11/19/2022]
Abstract
Carbon fiber electrodes are greatly promising for microelectronic applications including high performance biosensors, miniaturized transmitters, and energy storage and generation devices. For biosensor applications, one drawback of using carbon fiber microelectrodes, especially single fiber electrodes, is the weak electronic signals, a consequence of low surface area of fibers, which ultimately limit the sensitivity of the sensors. In this paper, we report a novel single fiber microelectrode with branched carbon nanotubes for enhanced sensing performance. The fiber microelectrode was prepared from carbonization of cellulose fibers. Upon introduction of carbon nanotubes, the carbon fibers exhibited a significant increase in the specific surface area from <10 to 36.4 m(2)/g (determined by the BET method). A single fiber electrode with such a hierarchical structure was examined for redox reactions of coenzyme NAD(H) which is useful to mediate the assays and transformations of a broad range of biochemicals. Experimental results showed that carbon nanotubes enhanced the redox reactions on surfaces of the electrode by reducing the oxidation potential of NAD(H) from 0.8 to 0.55 V. The single carbon fiber with branched nanotubes was also examined for the detection of glycerol, and the results showed linear responding signals in a concentration range of 40-250 microM. These results are comparable to the properties of fossil-based carbon materials, and thus our cellulose-based carbon electrodes provide a potentially sustainable alternative in bioelectrochemical applications.
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Affiliation(s)
- Xueyan Zhao
- Department of Bioproducts and Biosystems Engineering, Biotechnology Institute, University of Minnesota, St. Paul, MN 55108, USA
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41
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Wei B, Zhang L, Chen G. A multi-walled carbon nanotube/poly(urea-formaldehyde) composite prepared by in situ polycondensation for enhanced electrochemical sensing. NEW J CHEM 2010. [DOI: 10.1039/b9nj00670b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Zhang S, Xu M, Zhang Y. Simultaneous Voltammetric Detection of Salsolinol and Uric Acid in the Presence of High Concentration of Ascorbic Acid with Gold Nanoparticles/Functionalized Multiwalled Carbon Nanotubes Composite Film Modified Electrode. ELECTROANAL 2009. [DOI: 10.1002/elan.200900228] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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43
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Qin X, Wang H, Wang X, Li S, Miao Z, Huang N, Chen Q. Amperometric choline biosensors based on multi-wall carbon nanotubes and layer-by-layer assembly of multilayer films composed of Poly(diallyldimethylammonium chloride) and choline oxidase. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.11.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Effects of capacitance and resistance of MWNT-film coated electrodes on voltammetric detection of acetaminophen. J APPL ELECTROCHEM 2009. [DOI: 10.1007/s10800-008-9773-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Ly SY, Lee CH, Jung YS. Voltammetric Bioassay of Caffeine using Sensor Implant. Neuromolecular Med 2009; 11:20-7. [DOI: 10.1007/s12017-008-8057-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Accepted: 12/11/2008] [Indexed: 10/21/2022]
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46
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Bai Y, Sun Y, Sun C. Pt–Pb nanowire array electrode for enzyme-free glucose detection. Biosens Bioelectron 2008; 24:579-85. [DOI: 10.1016/j.bios.2008.06.003] [Citation(s) in RCA: 163] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2008] [Revised: 05/14/2008] [Accepted: 06/04/2008] [Indexed: 10/22/2022]
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47
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Carbon nanotube/gold nanoparticles/polyethylenimine-functionalized ionic liquid thin film composites for glucose biosensing. Biosens Bioelectron 2008; 24:951-6. [DOI: 10.1016/j.bios.2008.07.057] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2008] [Revised: 07/23/2008] [Accepted: 07/23/2008] [Indexed: 10/21/2022]
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48
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Poly(taurine)/MWNT-modified glassy carbon electrodes for the detection of acetaminophen. J APPL ELECTROCHEM 2008. [DOI: 10.1007/s10800-008-9721-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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49
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Shahrokhian S, Zare-Mehrjardi HR, Khajehsharifi H. Modification of carbon paste with congo red supported on multi-walled carbon nanotube for voltammetric determination of uric acid in the presence of ascorbic acid. J Solid State Electrochem 2008. [DOI: 10.1007/s10008-008-0733-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Jeong H, Jeon S. Determination of Dopamine in the Presence of Ascorbic Acid by Nafion and Single-Walled Carbon Nanotube Film Modified on Carbon Fiber Microelectrode. SENSORS (BASEL, SWITZERLAND) 2008; 8:6924-6935. [PMID: 27873906 PMCID: PMC3787423 DOI: 10.3390/s8116924] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2008] [Revised: 10/23/2008] [Accepted: 10/30/2008] [Indexed: 11/20/2022]
Abstract
Carbon fiber microelectrode (CFME) modified by Nafion and single-walled carbon nanotubes (SWNTs) was studied by voltammetric methods in phosphate buffer saline (PBS) solution at pH 7.4. The Nafion-SWNTs/CFME modified microelectrode exhibited strongly enhanced voltammetric sensitivity and selectivity towards dopamine (DA) determination in the presence of ascorbic acid (AA). Nafion-SWNTs film accelerated the electron transfer reaction of DA, but Nafion film as a negatively charged polymer restrained the electrochemical response of AA. Voltammetric techniques separated the anodic peaks of DA and AA, and the interference from AA was effectively excluded from DA determination. Linear calibration plots were obtained in the DA concentration range of 10 nM - 10 μM and the detection limit of the anodic current was determined to be 5 nM at a signal-to-noise ratio of 3. The study results demonstrate that DA can be determined without any interference from AA at the modified microelectrode, thereby increasing the sensitivity, selectivity, and reproducibility and stability.
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Affiliation(s)
- Haesang Jeong
- Department of Chemistry and Institute of Basic Science, Chonnam National University, Gwangju, 500-757, Korea.
| | - Seungwon Jeon
- Department of Chemistry and Institute of Basic Science, Chonnam National University, Gwangju, 500-757, Korea.
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