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Tan H, Zhang X, Xie J, Tang Z, Tang S, Xu L, Yang P. Pd Nanoparticles Loaded on Cu Nanoplate Sensor for Ultrasensitive Detection of Dopamine. SENSORS (BASEL, SWITZERLAND) 2024; 24:5702. [PMID: 39275613 PMCID: PMC11397903 DOI: 10.3390/s24175702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 08/29/2024] [Accepted: 08/31/2024] [Indexed: 09/16/2024]
Abstract
The detection of dopamine is of great significance for human health. Herein, Pd nanoparticles were loaded on Cu nanoplates (Pd/Cu NPTs) by a novel liquid phase reduction method. A novel dopamine (DA) electrochemical sensor based on the Pd NPs/Cu/glass carbon electrode (Pd/Cu NPTs/GCE) was constructed. This sensor showed a wide linear range of 0.047 mM to 1.122 mM and a low limit of detection (LOD) of 0.1045 μM (S/N = 3) for DA. The improved performance of this sensor is attributed to the obtained tiny Pd nanoparticles which increase the catalytic active sites and electrochemical active surface areas (ECSAs). Moreover, the larger surface area of two-dimensional Cu nanoplates can load more Pd nanoparticles, which is another reason to improve performance. The Pd/Cu NPTs/GCE sensor also showed a good reproducibility, stability, and excellent anti-interference ability.
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Affiliation(s)
- Haihu Tan
- College of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Xuan Zhang
- College of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Jinpu Xie
- College of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Zengmin Tang
- College of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Sijia Tang
- College of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Lijian Xu
- College of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Pingping Yang
- College of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
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2
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Yu Q, Song L. Unveiling the role of ferroptosis in the progression from NAFLD to NASH: recent advances in mechanistic understanding. Front Endocrinol (Lausanne) 2024; 15:1431652. [PMID: 39036052 PMCID: PMC11260176 DOI: 10.3389/fendo.2024.1431652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Accepted: 06/20/2024] [Indexed: 07/23/2024] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a prevalent and significant global public health issue. Nonalcoholic steatohepatitis (NASH) represents an advanced stage of NAFLD in terms of pathology. However, the intricate mechanisms underlying the progression from NAFLD to NASH remain elusive. Ferroptosis, characterized by iron-dependent cell death and distinguished from other forms of cell death based on morphological, biochemical, and genetic criteria, has emerged as a potential participant with a pivotal role in driving NAFLD progression. Nevertheless, its precise mechanism remains poorly elucidated. In this review article, we comprehensively summarize the pathogenesis of NAFLD/NASH and ferroptosis while highlighting recent advances in understanding the mechanistic involvement of ferroptosis in NAFLD/NASH.
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Affiliation(s)
- Qian Yu
- Laboratory Medical Department, Zigong Fourth People’s Hospital, Zigong, China
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3
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Ameen F, Karimi-Maleh H, Darabi R, Akin M, Ayati A, Ayyildiz S, Bekmezci M, Bayat R, Sen F. Synthesis and characterization of activated carbon supported bimetallic Pd based nanoparticles and their sensor and antibacterial investigation. ENVIRONMENTAL RESEARCH 2023; 221:115287. [PMID: 36640937 DOI: 10.1016/j.envres.2023.115287] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 12/20/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Activated carbon (AC) supported palladium cobalt bimetallic nanoparticles (PdCo@AC NPs) were obtained by green synthesis method using Cinnamomum verum (C. Verum) extract. The obtained NPs were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Crystallography (XRD), Transmission Electron Microscope (TEM) and Ultraviolet Visible (UV-VIS) spectroscopy, and the functional groups and morphology of the nanoparticle were elucidated. The resulting particle size was found to be 2.467 nm. NPs were evaluated using Cyclic Voltammetry (CV), Scan Rate (SR), and Differential Pulse Voltammetry (DPV) techniques for potential dopamine sensors application. According to the obtained DPV results, Limit of Detection (LOD) and Limit of Quantitation (LOQ) values are found to be 5.68 pM and 17.21 pM, respectively. It was also observed that AC supported PdCo nanoparticles obtained from C. verum extract sensed dopamine quite well. Besides, to examine the antibacterial properties of NPs, antibacterial analyzes were performed with Escherichia coli (E. Coli) and Staphylococcus aureus (S. Aureus). It was observed that it showed good antibacterial properties against gram positive (S. aureus) and gram negative (E. coli) bacteria. The study gave important results in terms of the synthesis of bimetallic NPs using the green synthesis method and their usability in different areas. With this study, it was observed that a good antibacterial dopamine sensor were obtained with the successful biogenic synthesis of AC supported PdCo bimetallic NPs.
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Affiliation(s)
- Fuad Ameen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Hassan Karimi-Maleh
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, PR China; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India; Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, 2028 Johannesburg, 17011, South Africa.
| | - Rozhin Darabi
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, PR China
| | - Merve Akin
- Sen Research Group, Department of Biochemistry, Dumlupinar University, Kutahya, Turkey; Department of Materials Science & Engineering, Faculty of Engineering, Dumlupinar University, Kutahya, Turkey
| | - Ali Ayati
- ChemBio Cluster, ITMO University, 9 Lomonosova Street, Saint Petersburg, 191002, Russia
| | - Selma Ayyildiz
- Sen Research Group, Department of Biochemistry, Dumlupinar University, Kutahya, Turkey
| | - Muhammed Bekmezci
- Sen Research Group, Department of Biochemistry, Dumlupinar University, Kutahya, Turkey; Department of Materials Science & Engineering, Faculty of Engineering, Dumlupinar University, Kutahya, Turkey
| | - Ramazan Bayat
- Sen Research Group, Department of Biochemistry, Dumlupinar University, Kutahya, Turkey; Department of Materials Science & Engineering, Faculty of Engineering, Dumlupinar University, Kutahya, Turkey
| | - Fatih Sen
- Sen Research Group, Department of Biochemistry, Dumlupinar University, Kutahya, Turkey.
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Li J, Yang Y, Peng Z, Yang J, Li Y. A novel photoelectrochemical microfluidic chip for multi-index determination of diabetes and its complications. Biosens Bioelectron 2022; 217:114719. [PMID: 36126554 DOI: 10.1016/j.bios.2022.114719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 08/20/2022] [Accepted: 09/10/2022] [Indexed: 11/30/2022]
Abstract
Rapid and accurate monitoring of glucose, lactic acid, pyruvic acid, and 3-hydroxybutyric acid is essential in preventing, diagnosing, and treating diabetes, lactic acidosis and diabetic ketoacidosis. Herein, a novel sensing chip for multi-index determination of diabetes, lactic acidosis, and diabetic ketoacidosis was presented by integrating microfluidic device and photoelectrochemical (PEC) sensor. In order to block the interference from the reductive species in real samples, the PEC sensor was divided into a biocathode and a photoanode, which were installed separately in the upper and bottom layers of the device. The photoanodes were modified with ZnIn2S4 nanoflower as photosensitive material, while enzymes for catalyzing the analytes were immobilized on the biocathodes. The PEC chip displayed wide detection ranges with low detection limits of 0.035 μM, 0.34 μM, 3.3 μM and 0.035 μM for the four analytes (S/N = 3). The chip also demonstrated decent anti-interference capability and reliability in monitoring the four biomarkers in human serum. Furthermore, a household amperemeter was deployed to record the photocurrent signals, which helps to reduce the cost. By replacing the enzyme on the biocathode, the sensing chip could play a role in monitoring a broad range of species.
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Affiliation(s)
- Jiangwei Li
- College of Science, Harbin Institute of Technology, Shenzhen, Guangdong, 518055, PR China
| | - Yuxuan Yang
- College of Science, Harbin Institute of Technology, Shenzhen, Guangdong, 518055, PR China
| | - Zhengchun Peng
- College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, PR China
| | - Jiao Yang
- College of Science, Harbin Institute of Technology, Shenzhen, Guangdong, 518055, PR China.
| | - Yingchun Li
- College of Science, Harbin Institute of Technology, Shenzhen, Guangdong, 518055, PR China; College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, PR China.
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5
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Cecilia Rossi Fernández A, Alejandra Meier L, Jorge Castellani N. Theoretical insight on dopamine, ascorbic acid and uric acid adsorption on graphene as material for biosensors. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Brown EW, Glasscott MW, Conley K, Barr J, Ray JD, Moores LC, Netchaev A. ACEstat: A DIY Guide to Unlocking the Potential of Integrated Circuit Potentiostats for Open-Source Electrochemical Analysis. Anal Chem 2022; 94:4906-4912. [PMID: 35258920 DOI: 10.1021/acs.analchem.1c04226] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Miniaturization of analytical instrumentation is paramount to enabling convenient in-field sensing. The recent thrust in potentiostat miniaturization for electrochemical sensing and general use has led to the development of commercial application specific integrated circuits (ASICs) that pack all the power of a benchtop instrument into one 5 mm × 5 mm chip. While the capabilities of these integrated circuits far exceed those of open-source potentiostats in the literature, the activation barrier for their implementation requires extensive electrical and software engineering expertise to overcome. In order to more rapidly bring the utility of ASIC potentiostats to researchers, we present a low size, weight, power, and cost (Low SWaP-C) Army Corps of Engineers potentiostat (ACEstat) based on the widely available ADuCM355 offered by Analog Devices. This potentiostat is a streamlined and fully programmable device that leverages industry-leading integrated hardware to perform electrochemical measurements such as cyclic voltammetry, pulse voltammetry, and electrochemical impedance spectroscopy. The ACEstat enables control over a wide range of test parameters and displays results through an intuitive, open-source graphical user interface available on mobile devices and computers. In this report, we present an approachable, do-it-yourself guide to unlocking the capabilities of this integrated circuit potentiostat by outlining the fabrication and programming details necessary to facilitate electroanalysis. Furthermore, we demonstrate the practicality of this device by detecting 2,4,6-trinitrotoluene (TNT) in water at sub-mg/L detection limits, highlighting its potential for in-field use.
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Affiliation(s)
- Eric W Brown
- U.S. Army Engineer Research and Development Center, Information Technology Laboratory, Vicksburg, Mississippi 39180, United States
| | - Matthew W Glasscott
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi 39180, United States
| | - Keith Conley
- U.S. Army Engineer Research and Development Center, Information Technology Laboratory, Vicksburg, Mississippi 39180, United States
| | - Jesse Barr
- U.S. Army Engineer Research and Development Center, Information Technology Laboratory, Vicksburg, Mississippi 39180, United States
| | - Jason D Ray
- U.S. Army Engineer Research and Development Center, Information Technology Laboratory, Vicksburg, Mississippi 39180, United States
| | - Lee C Moores
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi 39180, United States
| | - Anton Netchaev
- U.S. Army Engineer Research and Development Center, Information Technology Laboratory, Vicksburg, Mississippi 39180, United States
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7
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Xu S, Zhang Y, Du M, Wang S, Wei Y, Cheng T. Hollow Ag@Au-Rh core-frame nanocubes for electrochemical sensing and catalytic degradation of environmental pollutants. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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A boric acid-functionalized lanthanide metal-organic gel: A ratiometric fluorescence probe with rapid and sensitive detection of dopamine. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106579] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Lakard S, Pavel IA, Lakard B. Electrochemical Biosensing of Dopamine Neurotransmitter: A Review. BIOSENSORS 2021; 11:179. [PMID: 34204902 PMCID: PMC8229248 DOI: 10.3390/bios11060179] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 12/17/2022]
Abstract
Neurotransmitters are biochemical molecules that transmit a signal from a neuron across the synapse to a target cell, thus being essential to the function of the central and peripheral nervous system. Dopamine is one of the most important catecholamine neurotransmitters since it is involved in many functions of the human central nervous system, including motor control, reward, or reinforcement. It is of utmost importance to quantify the amount of dopamine since abnormal levels can cause a variety of medical and behavioral problems. For instance, Parkinson's disease is partially caused by the death of dopamine-secreting neurons. To date, various methods have been developed to measure dopamine levels, and electrochemical biosensing seems to be the most viable due to its robustness, selectivity, sensitivity, and the possibility to achieve real-time measurements. Even if the electrochemical detection is not facile due to the presence of electroactive interfering species with similar redox potentials in real biological samples, numerous strategies have been employed to resolve this issue. The objective of this paper is to review the materials (metals and metal oxides, carbon materials, polymers) that are frequently used for the electrochemical biosensing of dopamine and point out their respective advantages and drawbacks. Different types of dopamine biosensors, including (micro)electrodes, biosensing platforms, or field-effect transistors, are also described.
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Affiliation(s)
| | | | - Boris Lakard
- Institut UTINAM, UMR CNRS 6213, University of Bourgogne Franche-Comté, 16 Route de Gray, 25030 Besançon, France; (S.L.); (I.-A.P.)
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10
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Zhou T, Su Z, Tu Y, Yan J. Determination of dopamine based on its enhancement of gold-silver nanocluster fluorescence. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119519. [PMID: 33578121 DOI: 10.1016/j.saa.2021.119519] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/13/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
Dopamine (DA) is one of the most important neurotransmitters in human bodies and its sensitive detection remains a challenge. Herein, protein stabilized gold-silver nanoclusters (Au-AgNCs) were synthesized at first. It was found that the introduction of dopamine lead to a significant enhancement of the fluorescence from the nanoclusters, together with a red-shift of the peak. Through related spectroscopic and electrochemical studies, the fluorescence enhancement was attributed to the reduction of the nanoclusters by dopamine. This enhancement was then adopted for quantitative measurements, and linear responses toward dopamine in the ranges 0.01-1.7 μM and 1.7-10 μM were constructed. A limit of detection was obtained at 6.9 nM. The present study provided a facile and efficient method for the determination of dopamine, and the method was successfully applied for related measurements in serum samples.
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Affiliation(s)
- Ting Zhou
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Industrial Park, Suzhou 215123, China
| | - Zhu Su
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Industrial Park, Suzhou 215123, China
| | - Yifeng Tu
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Industrial Park, Suzhou 215123, China
| | - Jilin Yan
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Industrial Park, Suzhou 215123, China.
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11
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A metal-organic frameworks@ carbon nanotubes based electrochemical sensor for highly sensitive and selective determination of ascorbic acid. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127986] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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12
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Sandoval-Rojas AP, Cortés MT, Hurtado J. Electrochemical synthesis of poly(3,4-ethylenedioxythiophene) doped with a new bis(pyrazolyl)methane disulfonate and its behavior towards dopamine detection. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.02.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Nanomaterial-based electrochemical sensors for the detection of neurochemicals in biological matrices. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.08.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Bala K, Sharma D, Gupta N. Carbon-Nanotube-Based Materials for Electrochemical Sensing of the Neurotransmitter Dopamine. ChemElectroChem 2018. [DOI: 10.1002/celc.201801319] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kanchan Bala
- Department: Chemistry; Institution: Sri Guru Granth Sahib World University Fatehgarh Sahib; 140407 Punjab India
| | - Deepika Sharma
- Department: Chemistry; Institution: Shoolini University, Solan; Post Box No.9, Head Post Office Solan-173229 H.P. India
| | - Neeraj Gupta
- Department: Chemistry; Institution: Shoolini University, Solan; Post Box No.9, Head Post Office Solan-173229 H.P. India
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15
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Bonetto MC, Muñoz FF, Diz VE, Sacco NJ, Cortón E. Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.06.179] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Carbon Nanoelectrodes for the Electrochemical Detection of Neurotransmitters. INTERNATIONAL JOURNAL OF ELECTROCHEMISTRY 2018; 2018. [PMID: 34306762 PMCID: PMC8301601 DOI: 10.1155/2018/3679627] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Carbon-based electrodes have been developed for the detection of neurotransmitters over the past 30 years using voltammetry and amperometry. The traditional electrode for neurotransmitter detection is the carbon fiber microelectrode (CFME). The carbon-based electrode is suitable for in vivo neurotransmitter detection due to the fact that it is biocompatible and relatively small in surface area. The advent of nanoscale electrodes is in high demand due to smaller surface areas required to target specific brain regions that are also minimally invasive and cause relatively low tissue damage when implanted into living organisms. Carbon nanotubes (CNTs), carbon nanofibers, carbon nanospikes, and carbon nanopetals among others have all been utilized for this purpose. Novel electrode materials have also required novel insulations such as glass, epoxy, and polyimide coated fused silica capillaries for their construction and usage. Recent research developments have yielded a wide array of carbon nanoelectrodes with superior properties and performances in comparison to traditional electrode materials. These electrodes have thoroughly enhanced neurotransmitter detection allowing for the sensing of biological compounds at lower limits of detection, fast temporal resolution, and without surface fouling. This will allow for greater understanding of several neurological disease states based on the detection of neurotransmitters.
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Ahammad AJS, Hasan MM, Islam T, Al-Shehri MO, Anju AN, Alam MK, Kim JP, Qasem MAA, Aziz MA. Pyrolytic preparation of gold nanoparticle-coated taro carbon and its application for the selective detection of dopamine. NEW J CHEM 2018. [DOI: 10.1039/c7nj04777k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Gold nanoparticle-coated taro carbon was prepared and characterized for dopamine sensing.
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Affiliation(s)
| | | | - Tamanna Islam
- Department of Chemistry
- Jagannath University
- Dhaka 1100
- Bangladesh
| | - Mohammod Oudah Al-Shehri
- Center of Excellence in Nanotechnology
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | | | - Md. Kawsar Alam
- Department of Chemistry
- Jagannath University
- Dhaka 1100
- Bangladesh
| | - Jong-Pil Kim
- Surface Properties Research Team
- Korea Basic Science Institute Busan Center
- Busan 609-735
- South Korea
| | - Mohammed Ameen Ahmed Qasem
- Center of Excellence in Nanotechnology
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Md. Abdul Aziz
- Center of Excellence in Nanotechnology
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
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18
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Two dimensional palladium nanoparticle assemblies as electrochemical dopamine sensors. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Rascón-Leon S, Castillo-Ortega MM, Santos-Sauceda I, Munive GT, Rodriguez-Felix DE, Del Castillo-Castro T, Encinas JC, Valenzuela-García JL, Quiroz-Castillo JM, García-Gaitan B, Herrera-Franco PJ, Alvarez-Sanchez J, Ramírez JZ, Quiroz-Castillo LS. Selective adsorption of gold and silver in bromine solutions by acetate cellulose composite membranes coated with polyaniline or polypyrrole. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2206-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Sandoval-Rojas AP, Ibarra L, Cortés MT, Hurtado M, Macías M, Hurtado JJ. Synthesis and characterization of a new copper(II) polymer containing a thiocyanate bridge and its application in dopamine detection. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.01.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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21
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Gao J, Zhang S, Liu M, Tai Y, Song X, Qian Y, Song H. Synergistic combination of cyclodextrin edge-functionalized graphene and multiwall carbon nanotubes as conductive bridges toward enhanced sensing response of supramolecular recognition. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.11.073] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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22
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Gao L, Wang C, Wei Y. Enhanced binding capacity of boronate affinity fibrous material for effective enrichment of nucleosides in urine samples. RSC Adv 2016. [DOI: 10.1039/c5ra27898h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A novel polyethyleneimine-modified boronate affinity fibrous cotton with high binding capacity was prepared for in-pipette-tip solid phase extraction nucleosides in human urine.
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Affiliation(s)
- Li Gao
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710069
- China
| | - Chaozhan Wang
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710069
- China
| | - Yinmao Wei
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710069
- China
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23
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Zhang J, Liu Y, Wang X, Chen Y, Li G. Electrochemical assay of α-glucosidase activity and the inhibitor screening in cell medium. Biosens Bioelectron 2015. [DOI: 10.1016/j.bios.2015.07.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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24
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Kumar Roy P, Ganguly A, Yang WH, Wu CT, Hwang JS, Tai Y, Chen KH, Chen LC, Chattopadhyay S. Edge promoted ultrasensitive electrochemical detection of organic bio-molecules on epitaxial graphene nanowalls. Biosens Bioelectron 2015; 70:137-44. [DOI: 10.1016/j.bios.2015.03.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 02/27/2015] [Accepted: 03/11/2015] [Indexed: 12/01/2022]
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25
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Parvin MH. Simultaneous Determination of Ascorbic Acid, Dopamine and Uric Acid, at a Graphene Paste Electrode Modified with Functionalized Graphene Sheets. ELECTROANAL 2015. [DOI: 10.1002/elan.201400702] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Rahman MM, Li XB, Lopa NS, Ahn SJ, Lee JJ. Electrochemical DNA hybridization sensors based on conducting polymers. SENSORS (BASEL, SWITZERLAND) 2015; 15:3801-29. [PMID: 25664436 PMCID: PMC4367386 DOI: 10.3390/s150203801] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 01/27/2015] [Indexed: 02/07/2023]
Abstract
Conducting polymers (CPs) are a group of polymeric materials that have attracted considerable attention because of their unique electronic, chemical, and biochemical properties. This is reflected in their use in a wide range of potential applications, including light-emitting diodes, anti-static coating, electrochromic materials, solar cells, chemical sensors, biosensors, and drug-release systems. Electrochemical DNA sensors based on CPs can be used in numerous areas related to human health. This review summarizes the recent progress made in the development and use of CP-based electrochemical DNA hybridization sensors. We discuss the distinct properties of CPs with respect to their use in the immobilization of probe DNA on electrode surfaces, and we describe the immobilization techniques used for developing DNA hybridization sensors together with the various transduction methods employed. In the concluding part of this review, we present some of the challenges faced in the use of CP-based DNA hybridization sensors, as well as a future perspective.
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Affiliation(s)
- Md Mahbubur Rahman
- Nanotechnology Research Center and Department of Applied Life Science, College of Biomedical and Health Science, Konkuk University, Chungju 380-701, Korea.
| | - Xiao-Bo Li
- Nanotechnology Research Center and Department of Applied Life Science, College of Biomedical and Health Science, Konkuk University, Chungju 380-701, Korea.
| | - Nasrin Siraj Lopa
- Nanotechnology Research Center and Department of Applied Life Science, College of Biomedical and Health Science, Konkuk University, Chungju 380-701, Korea.
| | - Sang Jung Ahn
- Center for Advanced Instrumentation, Korea Research Institute of Standards and Science (KRISS), Daejeon 305-340, Korea.
| | - Jae-Joon Lee
- Nanotechnology Research Center and Department of Applied Life Science, College of Biomedical and Health Science, Konkuk University, Chungju 380-701, Korea.
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27
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Imran H, Manikandan PN, Dharuman V. Facile and green synthesis of graphene oxide by electrical exfoliation of pencil graphite and gold nanoparticle for non-enzymatic simultaneous sensing of ascorbic acid, dopamine and uric acid. RSC Adv 2015. [DOI: 10.1039/c5ra11723b] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pencil graphite is electrochemically exfoliated to gain few layered graphene oxide in HCl, NaOH and phosphate buffer saline without ionic liquid for the first time and used for simultaneous sensing of dopamine, ascorbic acid and uric acid in the presence of Au nanoparticles.
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Affiliation(s)
- Habibulla Imran
- Molecular Electronics Laboratory
- Department of Bioelectronics and Biosensors
- Science Campus
- Alagappa University
- Karaikudi - 630004
| | - Palinci Nagarajan Manikandan
- Molecular Electronics Laboratory
- Department of Bioelectronics and Biosensors
- Science Campus
- Alagappa University
- Karaikudi - 630004
| | - Venkataraman Dharuman
- Molecular Electronics Laboratory
- Department of Bioelectronics and Biosensors
- Science Campus
- Alagappa University
- Karaikudi - 630004
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28
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Kim E, Kim YH. Influence of Electrochemical Polymerization Temperature on the Morphology of Binary-doped Chiral Polyaniline. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2014. [DOI: 10.5012/jkcs.2014.58.5.456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Yang B, Wang H, Du J, Fu Y, Yang P, Du Y. Direct electrodeposition of reduced graphene oxide on carbon fiber electrode for simultaneous determination of ascorbic acid, dopamine and uric acid. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.05.029] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Sarangi NK, Patnaik A. Bio-inspired Janus gold nanoclusters with lipid and amino acid functional capping ligands: micro-voltammetry and in situ electron transfer in a biogenic environment. RSC Adv 2014. [DOI: 10.1039/c4ra01869a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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31
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Abstract
Polyaniline nanofibers were prepared chemically in both emiraldine base (EB) and emiraldine salt (ES) forms. The composite of polyaniline emiraldine salt with single walled carbon nanotubes (SWCNTs) was developed. Electrochemical sensors based on polyaniline nanofibers and its composite have been developed for the detection of chloropyrifos. Chloropyrifos exhibits one well defined reduction peak. The maximum peak current was linearly related to chloropyrifos concentration in the range from 0.2 μM to 1.4 μM. It was found that the SWCNTs improved the sensitivity of the polyaniline base graphite electrode from 3.0 mA/μM for polyaniline base to 9.69 mA/μM for ES-SWCNTs composite electrode.
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32
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Rozniecka E, Jonsson-Niedziolka M, Celebanska A, Niedziolka-Jonsson J, Opallo M. Selective electrochemical detection of dopamine in a microfluidic channel on carbon nanoparticulate electrodes. Analyst 2014; 139:2896-903. [DOI: 10.1039/c3an02207b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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33
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Liao C, Zhang M, Niu L, Zheng Z, Yan F. Organic electrochemical transistors with graphene-modified gate electrodes for highly sensitive and selective dopamine sensors. J Mater Chem B 2014; 2:191-200. [DOI: 10.1039/c3tb21079k] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Bali Prasad B, Jauhari D, Prasad Tiwari M. A dual-template imprinted polymer-modified carbon ceramic electrode for ultra trace simultaneous analysis of ascorbic acid and dopamine. Biosens Bioelectron 2013; 50:19-27. [DOI: 10.1016/j.bios.2013.05.062] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 05/30/2013] [Accepted: 05/31/2013] [Indexed: 11/16/2022]
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35
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Cathodically pretreated poly(1-aminoanthraquinone)-modified electrode for determination of ascorbic acid, dopamine, and uric acid. J APPL ELECTROCHEM 2013. [DOI: 10.1007/s10800-013-0577-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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36
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Facile and controlled growth of SWCNT on well-dispersed Ni-SBA-15 for an efficient electro-catalytic oxidation of ascorbic acid, dopamine and uric acid. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.02.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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37
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Plesu N, Kellenberger A, Taranu I, Taranu BO, Popa I. Impedimetric detection of dopamine on poly(3-aminophenylboronic acid) modified skeleton nickel electrodes. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2013.03.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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38
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Siek M, Kaminska A, Kelm A, Rolinski T, Holyst R, Opallo M, Niedziolka-Jonsson J. Electrodeposition for preparation of efficient surface-enhanced Raman scattering-active silver nanoparticle substrates for neurotransmitter detection. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.11.037] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Lü C, Li H, Wang H, Liu Z. Probing the Interactions between Boronic Acids and cis-Diol-Containing Biomolecules by Affinity Capillary Electrophoresis. Anal Chem 2013; 85:2361-9. [DOI: 10.1021/ac3033917] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Chenchen Lü
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,
People’s Republic of China
| | - Hengye Li
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,
People’s Republic of China
| | - Heye Wang
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,
People’s Republic of China
| | - Zhen Liu
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,
People’s Republic of China
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40
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Gerwig R, Fuchsberger K, Schroeppel B, Link GS, Heusel G, Kraushaar U, Schuhmann W, Stett A, Stelzle M. PEDOT-CNT Composite Microelectrodes for Recording and Electrostimulation Applications: Fabrication, Morphology, and Electrical Properties. FRONTIERS IN NEUROENGINEERING 2012; 5:8. [PMID: 22586394 PMCID: PMC3343311 DOI: 10.3389/fneng.2012.00008] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 04/15/2012] [Indexed: 11/25/2022]
Abstract
Composites of carbon nanotubes and poly(3,4-ethylenedioxythiophene, PEDOT) and layers of PEDOT are deposited onto microelectrodes by electropolymerization of ethylenedioxythiophene in the presence of a suspension of carbon nanotubes and polystyrene sulfonate. Analysis by FIB and SEM demonstrates that CNT-PEDOT composites exhibit a porous morphology whereas PEDOT layers are more compact. Accordingly, capacitance and charge injection capacity of the composite material exceed those of pure PEDOT layers. In vitro cell culture experiments reveal excellent biocompatibility and adhesion of both PEDOT and PEDOT-CNT electrodes. Signals recorded from heart muscle cells demonstrate the high S/N ratio achievable with these electrodes. Long-term pulsing experiments confirm stability of charge injection capacity. In conclusion, a robust fabrication procedure for composite PEDOT-CNT electrodes is demonstrated and results show that these electrodes are well suited for stimulation and recording in cardiac and neurophysiological research.
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Affiliation(s)
- Ramona Gerwig
- Natural and Medical Sciences InstituteReutlingen, Germany
| | | | | | | | - Gerhard Heusel
- Natural and Medical Sciences InstituteReutlingen, Germany
| | - Udo Kraushaar
- Natural and Medical Sciences InstituteReutlingen, Germany
| | | | - Alfred Stett
- Natural and Medical Sciences InstituteReutlingen, Germany
| | - Martin Stelzle
- Natural and Medical Sciences InstituteReutlingen, Germany
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41
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Simultaneous determination of ascorbic acid, dopamine and uric acid using high-performance screen-printed graphene electrode. Biosens Bioelectron 2012; 34:70-6. [DOI: 10.1016/j.bios.2012.01.016] [Citation(s) in RCA: 324] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 01/10/2012] [Accepted: 01/13/2012] [Indexed: 11/20/2022]
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42
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Zhao J, Zhang W, Sherrell P, Razal JM, Huang XF, Minett AI, Chen J. Carbon nanotube nanoweb-bioelectrode for highly selective dopamine sensing. ACS APPLIED MATERIALS & INTERFACES 2012; 4:44-8. [PMID: 22148519 DOI: 10.1021/am201508d] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A highly sensitive and selective dopamine sensor was fabricated with the unique 3D carbon nanotube nanoweb (CNT-N) electrode. The as-synthesised CNT-N was modified by oxygen plasma to graft functional groups in order to increase selective electroactive sites at the CNT sidewalls. This electrode was characterized physically and electrochemically using HRSEM, Raman, FT-IR, and cyclic voltammetry (CV). Our investigations indicated that the O(2)-plasma treated CNT-N electrode could serve as a highly sensitive biosensor for the selective sensing of dopamine (DA, 1 μM to 20 μM) in the presence of ascorbic acid (AA, 1000 μM).
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Affiliation(s)
- Jie Zhao
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, Australian Institute of Innovative Materials, Innovation Campus, IHMRI, School of Health Sciences, University of Wollongong, NSW 2522, Australia
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43
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44
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Film electrode prepared from oppositely charged silicate submicroparticles and carbon nanoparticles for selective dopamine sensing. Biosens Bioelectron 2011; 26:4417-22. [DOI: 10.1016/j.bios.2011.04.054] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 04/27/2011] [Accepted: 04/28/2011] [Indexed: 11/15/2022]
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45
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Cheng F, Jäkle F. Boron-containing polymers as versatile building blocks for functional nanostructured materials. Polym Chem 2011. [DOI: 10.1039/c1py00123j] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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46
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Jäkle F. Advances in the Synthesis of Organoborane Polymers for Optical, Electronic, and Sensory Applications. Chem Rev 2010; 110:3985-4022. [DOI: 10.1021/cr100026f] [Citation(s) in RCA: 953] [Impact Index Per Article: 68.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Frieder Jäkle
- Department of Chemistry, Rutgers University Newark, Newark, New Jersey 07102
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47
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Späth A, König B. Molecular recognition of organic ammonium ions in solution using synthetic receptors. Beilstein J Org Chem 2010; 6:32. [PMID: 20502608 PMCID: PMC2874414 DOI: 10.3762/bjoc.6.32] [Citation(s) in RCA: 162] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2010] [Accepted: 03/09/2010] [Indexed: 01/12/2023] Open
Abstract
Ammonium ions are ubiquitous in chemistry and molecular biology. Considerable efforts have been undertaken to develop synthetic receptors for their selective molecular recognition. The type of host compounds for organic ammonium ion binding span a wide range from crown ethers to calixarenes to metal complexes. Typical intermolecular interactions are hydrogen bonds, electrostatic and cation-π interactions, hydrophobic interactions or reversible covalent bond formation. In this review we discuss the different classes of synthetic receptors for organic ammonium ion recognition and illustrate the scope and limitations of each class with selected examples from the recent literature. The molecular recognition of ammonium ions in amino acids is included and the enantioselective binding of chiral ammonium ions by synthetic receptors is also covered. In our conclusion we compare the strengths and weaknesses of the different types of ammonium ion receptors which may help to select the best approach for specific applications.
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Affiliation(s)
- Andreas Späth
- Institut für Organische Chemie, Universität Regensburg, D-93040 Regensburg, Germany, Phone: +49-943-941-4576, Fax: +49-943-941-1717
| | - Burkhard König
- Institut für Organische Chemie, Universität Regensburg, D-93040 Regensburg, Germany, Phone: +49-943-941-4576, Fax: +49-943-941-1717
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48
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Lin Y, Zhang Z, Zhao L, Wang X, Yu P, Su L, Mao L. A non-oxidative electrochemical approach to online measurements of dopamine release through laccase-catalyzed oxidation and intramolecular cyclization of dopamine. Biosens Bioelectron 2010; 25:1350-5. [DOI: 10.1016/j.bios.2009.10.028] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2009] [Revised: 10/17/2009] [Accepted: 10/20/2009] [Indexed: 10/20/2022]
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49
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High sensitivity carbon nanotubes flow-rate sensors and their performance improvement by coating. SENSORS 2010; 10:4898-906. [PMID: 22399913 PMCID: PMC3292153 DOI: 10.3390/s100504898] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2010] [Revised: 04/17/2010] [Accepted: 04/25/2010] [Indexed: 11/17/2022]
Abstract
A new type of hot-wire flow-rate sensor (HWFS) with a sensing element made of a macro-sized carbon nanotube (CNT) strand is presented in this study. An effective way to improve repeatability of the CNT flow-rate sensor by coating a layer of Al2O3 on the CNT surface is proposed. Experimental results show that due to the large surface-to-volume ratio and thin coated Al2O3 layer, the CNT flow-rate sensor has higher sensitivity and faster response than a conventional platinum (Pt) HWFS. It is also demonstrated that the covered CNT flow-rate sensor has better repeatability than its bare counterpart due to insulation from the surrounding environment. The proposed CNT flow-rate sensor shows application potential for high-sensitivity measurement of flow rate.
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50
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Gómez-Caballero A, Ugarte A, Sánchez-Ortega A, Unceta N, Goicolea MA, Barrio RJ. Molecularly imprinted poly[tetra(o-aminophenyl)porphyrin] as a stable and selective coating for the development of voltammetric sensors. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2009.11.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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