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Karthik V, Selvakumar P, Senthil Kumar P, Satheeskumar V, Godwin Vijaysunder M, Hariharan S, Antony K. Recent advances in electrochemical sensor developments for detecting emerging pollutant in water environment. CHEMOSPHERE 2022; 304:135331. [PMID: 35709842 DOI: 10.1016/j.chemosphere.2022.135331] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/07/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
In the latest times, considerable studies have been performed closer to detecting emerging pollutant such as paracetamol in wastewater. Electrochemical sensor developments have recently started to determine in fewer concentrations effectively. The detection of paracetamol using standard protocols corresponding to electroanalytical techniques has a greater impact noticed in directing the detecting process toward biosensors. Non-enzymatic sensors are the peak of all electro analysis approaches. Functionalized materials, such as metal oxide nanoparticles, conducting polymers, and carbon-based materials for electrode surface functionalization have been used to create a fortification for distributing passive enzyme-free biosensors. Synergic effects are possible by enhancing loading capacity and mass transfer of reactants for attaining high analytical sensitivity using a variety of nanomaterials with large surface areas. The main focus of this study is to address the prevailing issues in the identification of paracetamol with the tasks in the non-enzymatic sensors field, followed by the useful methods of electro analysis studies.
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Affiliation(s)
- V Karthik
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, 641013, India
| | - P Selvakumar
- Department of Chemical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama, 1888, Ethiopia
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, 140413, India.
| | - V Satheeskumar
- Department of Civil Engineering, Government College of Technology, Coimbatore, 641013, India
| | - M Godwin Vijaysunder
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, 641013, India
| | - S Hariharan
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, 641013, India
| | - K Antony
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, 641013, India
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Feng J, Deng P, Xiao J, Li J, Tian Y, Wu Y, Liu J, Li G, He Q. New voltammetric method for determination of tyrosine in foodstuffs using an oxygen-functionalized multi-walled carbon nanotubes modified acetylene black paste electrode. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103708] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Cioates Negut C, Stefanov C, Frederick van Staden J(K. Graphite Based Microsensors Developed for the Electrochemical Determination of L‐Tyrosine from Pharmaceutical Samples. ELECTROANAL 2020. [DOI: 10.1002/elan.201900733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Catalina Cioates Negut
- Laboratory of Electrochemistry and PATLAB Bucharest Bucharest 060021 Romania
- National Institute of Research for Electrochemistry and Condensed Matter Timisoara Romania
| | - Cristina Stefanov
- Laboratory of Electrochemistry and PATLAB Bucharest Bucharest 060021 Romania
- National Institute of Research for Electrochemistry and Condensed Matter Timisoara Romania
| | - Jacobus (Koos) Frederick van Staden
- Laboratory of Electrochemistry and PATLAB Bucharest Bucharest 060021 Romania
- National Institute of Research for Electrochemistry and Condensed Matter Timisoara Romania
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Zhong Y, Du L, Liu Q, Zhu L, Meng K, Zou Y, Zhang B. Ultrasensitive specific sensor based on all-dielectric metasurfaces in the terahertz range. RSC Adv 2020; 10:33018-33025. [PMID: 35515049 PMCID: PMC9056665 DOI: 10.1039/d0ra06463g] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 08/26/2020] [Indexed: 01/26/2023] Open
Abstract
An ultrasensitive specific sensor based on all-dielectric metasurfaces in the terahertz range was proposed. The designed metasurfaces consist of multi pairs of tilted silicon bars on a SiO2 substrate with a high-Q Fano resonance feature. The peak of this high Q Fano resonance can form a wide reflection spectrum band by scanning the angle of the incident THz waves. Utilizing this angle-scanning strategy, we designed a metasurface sensor and its reflection spectrum band can cover the absorption peak of tyrosine and santonin. By depositing different thicknesses of tyrosine and santonin on the sensor, we have successfully identified them with a detection limit of 6.7 μg cm−2 and 59.35 μg cm−2, respectively. The performance of the sensor with high sensitivity has been analyzed in detail, showing an exciting prospect for identification of ‘fingerprint’ spectra in the terahertz region. An ultrasensitive specific sensor based on all-dielectric metasurfaces in the terahertz range was proposed.![]()
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Affiliation(s)
- Yajun Zhong
- College of Electronics and Information Engineering
- Sichuan University
- Chengdu
- China
| | - Lianghui Du
- Institute of Fluid Physics
- China Academy of Engineering Physics
- Mianyang
- China
- Microsystem and Terahertz Research Center
| | - Qiao Liu
- Institute of Fluid Physics
- China Academy of Engineering Physics
- Mianyang
- China
- Microsystem and Terahertz Research Center
| | - Liguo Zhu
- Institute of Fluid Physics
- China Academy of Engineering Physics
- Mianyang
- China
- Microsystem and Terahertz Research Center
| | - Kun Meng
- Institute of Fluid Physics
- China Academy of Engineering Physics
- Mianyang
- China
| | - Yi Zou
- Institute of Fluid Physics
- China Academy of Engineering Physics
- Mianyang
- China
| | - Bin Zhang
- College of Electronics and Information Engineering
- Sichuan University
- Chengdu
- China
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Ratnam KV, Manjunatha H, Janardan S, Babu Naidu KC, Ramesh S. Nonenzymatic electrochemical sensor based on metal oxide, MO (M= Cu, Ni, Zn, and Fe) nanomaterials for neurotransmitters: An abridged review. SENSORS INTERNATIONAL 2020. [DOI: 10.1016/j.sintl.2020.100047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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A flexible CVD graphene platform electrode modified with l-aspartic acid for the simultaneous determination of acetaminophen, epinephrine and tyrosine. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113737] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Electrochemical Sensor for Rapid and Sensitive Detection of Tryptophan by a Cu 2O Nanoparticles-Coated Reduced Graphene Oxide Nanocomposite. Biomolecules 2019; 9:biom9050176. [PMID: 31072043 PMCID: PMC6571681 DOI: 10.3390/biom9050176] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 04/21/2019] [Accepted: 05/08/2019] [Indexed: 02/05/2023] Open
Abstract
In this paper, a nanocomposite of cuprous oxide and electrochemically reduced graphene oxide (Cu2O–ERGO) was prepared by a simple and low-cost method; hereby, a new method for the electrochemical determination of tryptophan (Trp) by this composite modified glassy carbon electrode (GCE) is proposed. The prepared materials and modified electrodes were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and cyclic voltammetry (CV). The results showed that Cu2O–ERGO/GCE had good electrocatalytic activity for Trp. The effects of supporting electrolyte, scanning rate, accumulation potential, and accumulation time on the determination of Trp were studied. Under the optimum experimental conditions, Trp was quantitatively analyzed by square-wave voltammetry (SWV). The oxidation peak current of Trp had a good linear relationship with its concentration in the range of 0.02–20 μM, and the detection limit was 0.01 μM (S/N = 3). In addition, the modified electrode has high sensitivity, good repeatability, and long-term stability. Finally, the proposed method has been successfully applied in the determination of Trp concentration in practical samples.
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Hareesha N, Manjunatha JG, Raril C, Tigari G. Sensitive and Selective Electrochemical Resolution of Tyrosine with Ascorbic Acid through the Development of Electropolymerized Alizarin Sodium Sulfonate Modified Carbon Nanotube Paste Electrodes. ChemistrySelect 2019. [DOI: 10.1002/slct.201900794] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- N. Hareesha
- Department of ChemistryFMKMC CollegeConstituent College Mangalore University, Madikeri, Karnataka, India
| | - J. G. Manjunatha
- Department of ChemistryFMKMC CollegeConstituent College Mangalore University, Madikeri, Karnataka, India
| | - C. Raril
- Department of ChemistryFMKMC CollegeConstituent College Mangalore University, Madikeri, Karnataka, India
| | - Girish Tigari
- Department of ChemistryFMKMC CollegeConstituent College Mangalore University, Madikeri, Karnataka, India
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Fabrication of a novel enzymatic electrochemical biosensor for determination of tyrosine in some food samples. Talanta 2018; 183:1-10. [PMID: 29567149 DOI: 10.1016/j.talanta.2018.02.053] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/10/2018] [Accepted: 02/12/2018] [Indexed: 11/23/2022]
Abstract
In this work, fabrication of a novel and ultrasensitive electrochemical biosensor based on immobilization of tyrosine hydroxylase onto palladium-platinum bimetallic alloy nanoparticles/chitosan-1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide/graphene-multiwalled carbon nanotubes-IL/glassy carbon electrode for determination of L-tyrosine in some high tyrosine foods including cheese, egg and yogurt was reported. Immobilization of tyrosine hydroxylase onto the surface of the biosensor was performed by cross-linking tyrosine hydroxylase and chitosan through the addition of glutaraldehyde. Enzymatic biosensors employ the affinity and selectivity of catalytically active proteins towards their target molecules and here, the tyrosine hydroxylase selectively catalyzes the conversion of tyrosine to levodopa which can be oxidized at lower potentials than tyrosine. The modifications were characterized by electrochemical impedance spectroscopy, cyclic voltammetry, energy dispersive X-ray spectroscopic and scanning electron microscopy. Under optimal conditions, the biosensor detected tyrosine in concentration ranges of 0.01 × 10-9 to 8.0 × 10-9 mol L-1 and 8.0 × 10-9 to 160.0 × 10-9 mol L-1 with a limit of detection of 0.009 × 10-9 mol L-1. The biosensor was able to selective determination of tyrosine even in the presence of common interferents therefore, the biosensor was highly selective. The biosensor also showed good operational stability, antifouling properties, sensitivity, repeatability and reproducibility.
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Rahimi-Mohseni M, Raoof JB, Ojani R, Aghajanzadeh TA, Bagheri Hashkavayi A. Development of a new paper based nano-biosensor using the co-catalytic effect of tyrosinase from banana peel tissue (Musa Cavendish) and functionalized silica nanoparticles for voltammetric determination of l-tyrosine. Int J Biol Macromol 2018; 113:648-654. [PMID: 29447970 DOI: 10.1016/j.ijbiomac.2018.02.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/23/2018] [Accepted: 02/11/2018] [Indexed: 10/18/2022]
Abstract
In this paper, a new and facile method for the electrochemical determination of l-tyrosine was designed. First, 3-mercaptopropyl trimethoxysilane-functionalized silica nanoparticles were added to a paper disc. Then, the banana peel tissue and the mediator potassium hexacyanoferrate were dropped onto the paper, respectively. The modified paper disc was placed on the top of the graphite screen printed electrode and electrochemical characterization of this biosensor was studied by cyclic voltammetry and electrochemical impedance spectroscopy methods. The effective parameters like pH, banana peel tissue percentage, and the amount of mediator loading were optimized. l-tyrosine measurements were done by differential pulse voltammetry with a little sample (3 μL) for analysis. The biosensor showed a linear response for l-tyrosine in the wide concentration range of 0.05-600 μM and a low detection limit about 0.02 μM because of the co-catalytic effect of enzyme and nanoparticles. The stability of the biosensor and its selectivity were evaluated. This biosensor was applied for the voltammetric determination of l-tyrosine in the blood plasma sample. The results of the practical application study were comparable with the standard method (HPLC). In conclusion, a simple, inexpensive, rapid, sensitive and selective technique was successfully applied to the l-tyrosine analysis of the little samples.
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Affiliation(s)
- Mohadeseh Rahimi-Mohseni
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Jahan Bakhsh Raoof
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
| | - Reza Ojani
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Tahereh A Aghajanzadeh
- Department of Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | - Ayemeh Bagheri Hashkavayi
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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K.Narayanan R, Sadanandhan NK, Devaki SJ. Silver Patterned Supramolecular Liquid Crystalline Gels as Electrochemical Sensor of Tyrosine. ChemistrySelect 2017. [DOI: 10.1002/slct.201601085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rohini K.Narayanan
- Chemical sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram 695 019 India
| | - Neethu K. Sadanandhan
- Chemical sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram 695 019 India
| | - Sudha J. Devaki
- Chemical sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram 695 019 India
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12
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Amperometric sensor based on multi-walled carbon nanotube and poly (Bromocresol purple) modified carbon paste electrode for the sensitive determination of L-tyrosine in food and biological samples. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.08.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Chekin F, Bagheri S. Tyrosine sensing on phthalic anhydride functionalized chitosan and carbon nanotube film coated glassy carbon electrode. RUSS J ELECTROCHEM+ 2016. [DOI: 10.1134/s1023193515120034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Zhang J, Chang Y, Dong C. Electrocatalytic oxidation and sensitive determination of N-acetyl-L-cysteine at cyclodextrin-carbon nanotubes modified glassy carbon electrode. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2015. [DOI: 10.3103/s1068375515020155] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Abstract
Despite providing the opportunity for directly sensing molecular constituents with inherent fingerprint specificity in the 2.5-20 μm spectral regime, mid-infrared optical sensing technologies have not yet achieved the same penetration in waveguide-based chem/bio sensing compared to related sensing schemes operating at visible and near-infrared frequencies. In this review, current advances in mid-infrared chem/bio sensor technology will be highlighted and contrasted with the prevalent bottlenecks that have to date limited a more widespread adoption of mid-infrared sensing devices. However, with the increasing availability of advanced light sources such as quantum cascade lasers and the advent of on-chip semiconductor waveguide technologies, a prosperous future of this sensing concept for label-free detection in environmental analysis, process monitoring, and bioanalytics is perceived.
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Affiliation(s)
- Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
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Keyvanfard M, Tahmasbi M, Karimi-Maleh H, Alizad K. A voltammetric sensor with a multiwall carbon nanotube paste electrode and naphthol green as a mediator for the determination of N-actylcysteine in the presence of tryptophan. CHINESE JOURNAL OF CATALYSIS 2014. [DOI: 10.1016/s1872-2067(14)60019-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Xu F, Wang F, Yang D, Gao Y, Li H. Electrochemical sensing platform for L-CySH based on nearly uniform Au nanoparticles decorated graphene nanosheets. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 38:292-8. [PMID: 24656381 DOI: 10.1016/j.msec.2014.02.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 12/23/2013] [Accepted: 02/13/2014] [Indexed: 10/25/2022]
Abstract
In this study, Au nanoparticles decorated graphene nanosheets were prepared using poly(vinylpyrrolidone) (PVP) covalently functionalized graphene oxide and chloroauric acid as template and Au precursor, respectively. Both the density and the size of Au nanoparticles deposited on the surface of graphene could be adjusted by the PVP grafting density. The graphene-Au hybrid nanosheets were then applied to fabricate a highly sensitive l-cysteine (L-CySH) electrochemical sensing platform. The cyclic voltammetry results showed that the modified glassy carbon electrode with graphene-Au hybrid nanosheets exhibited strong catalytic activity toward the electrooxidation of L-CySH. The current exhibited a widely linear response ranging from 0.1 to 24 μM with a low detection limit under the optimized conditions. The detection limit of L-CySH could reach as low as 20.5 nM (S/N=3). The enhanced electrochemical performance of the fabricated sensor was attributed to the combination of the excellent conductivity of graphene and strong catalytic property of uniform Au nanoparticles.
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Affiliation(s)
- Fugui Xu
- College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, PR China
| | - Fan Wang
- College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, PR China
| | - Duanguang Yang
- College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, PR China
| | - Yong Gao
- College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, PR China; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, Hunan Province, PR China; Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Xiangtan University, Xiangtan 411105, Hunan Province, PR China.
| | - Huaming Li
- College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, PR China; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, Hunan Province, PR China; Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Xiangtan University, Xiangtan 411105, Hunan Province, PR China; Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, Hunan Province, PR China.
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Development of amperometric l-tyrosine sensor based on Fe-doped hydroxyapatite nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 35:85-91. [DOI: 10.1016/j.msec.2013.10.013] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 09/18/2013] [Accepted: 10/19/2013] [Indexed: 11/18/2022]
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19
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Simultaneous electrochemical detection of tryptophan and tyrosine using boron-doped diamond and diamond nanowire electrodes. Electrochem commun 2013. [DOI: 10.1016/j.elecom.2013.08.010] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Simultaneous voltammetric determination of tyrosine and paracetamol using a carbon nanotube-graphene nanosheet nanocomposite modified electrode in human blood serum and pharmaceuticals. Colloids Surf B Biointerfaces 2013. [DOI: 10.1016/j.colsurfb.2012.10.024] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Simultaneous determination of L-cysteine and L-tyrosine using Au-nanoparticles/poly-eriochrome black T film modified glassy carbon electrode. Bioelectrochemistry 2012; 86:38-45. [DOI: 10.1016/j.bioelechem.2012.01.008] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 01/12/2012] [Accepted: 01/14/2012] [Indexed: 11/24/2022]
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Cheng ML, Tsai BC, Yang J. Silver nanoparticle-treated filter paper as a highly sensitive surface-enhanced Raman scattering (SERS) substrate for detection of tyrosine in aqueous solution. Anal Chim Acta 2011; 708:89-96. [PMID: 22093349 DOI: 10.1016/j.aca.2011.10.013] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Revised: 10/01/2011] [Accepted: 10/09/2011] [Indexed: 11/24/2022]
Abstract
Highly sensitive SERS substrates based on deposition of silver nanoparticles on commercially available filter paper were prepared in this work, and used to overcome problems found in analyses of aqueous samples. To prepare silver nanoparticle- (AgNP) doped filter substrates, a silver mirror reaction was used. The procedures for substrate preparation were systematically optimized. Pretreatment of filter paper, reaction time, temperature, and concentration of reagents for silver mirror reactions were studied. The morphologies of the resulting substrates were characterized by field-emission scanning electron microscopy (FE-SEM) and correlated with the SERS signals by probing with p-nitrothiophenol (pNTP). Filter papers with different pretreatments were found to have different sizes and distributions of AgNPs. The best performance was found when filter paper was pre-treated with ammonia solution before growth of AgNPs. Based on the SEM images, the resulting AgNPs had roughly spherical shape with a high degree of uniformity. The silver-coated filter paper substrates provide much higher SERS signals compared to glass substrates and the reproducibility was improved significantly. Based on statistical analyses, the relative standard deviations for substrate-to-substrate and spot-to-spot were both were less than 8% and the enhancement factors for the substrates were, in general, higher than 107. The SERS substrates were used to selectively detect tyrosine in aqueous solution. Results indicate that filter-based SERS substrates are highly suited to detection of tyrosine. Compared to glass-based SERS substrates, 50 times more SERS signal was observed in detection of tyrosine. The linear range can be up to 100 μM with a detection limit of 625 nM (SN(-1)=3).
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Affiliation(s)
- Min-Liang Cheng
- Department of Chemistry, National Chung-Hsing University, Taichung 402, Taiwan
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Prabhu P, Babu RS, Narayanan SS. Electrocatalytic oxidation of l-tryptophan using copper hexacyanoferrate film modified gold nanoparticle graphite-wax electrode. Colloids Surf B Biointerfaces 2011; 87:103-8. [DOI: 10.1016/j.colsurfb.2011.05.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 04/30/2011] [Accepted: 05/03/2011] [Indexed: 11/25/2022]
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Gonzalvez A, Garrigues S, de la Guardia M, Armenta S. The ways to the trace level analysis in infrared spectroscopy. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2011; 3:43-52. [PMID: 32938108 DOI: 10.1039/c0ay00437e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The future of infrared (IR) spectroscopy as an analytical technique is assured due to its versatility and its numerous advantages; such as the possibility to obtain molecular specific information for virtually any sample in any state with no treatment or minimal sample preparation. However, spectroscopists are not satisfied with relegating IR spectroscopy just to major and minor component analysis and have been looking at analysis at the trace level too. This review is the recognition of the brilliant research performed during the past two decades and the advances achieved in this area, which have made possible the analysis of contaminants at parts per billion (ppb) levels by IR in different matrices; such as water and soils.
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Affiliation(s)
- Ana Gonzalvez
- Analytical Chemistry Department, University of Valencia, 50th Dr Moliner Street, 46100, Burjassot, Spain.
| | - Salvador Garrigues
- Analytical Chemistry Department, University of Valencia, 50th Dr Moliner Street, 46100, Burjassot, Spain.
| | - Miguel de la Guardia
- Analytical Chemistry Department, University of Valencia, 50th Dr Moliner Street, 46100, Burjassot, Spain.
| | - Sergio Armenta
- Department of Chemistry, UniversitatAutonoma de Barcelona, EdificiCn, Bellatera 08192, Spain
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25
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Amperometric determination of L-tyrosine by an enzymeless sensor based on a carbon ceramic electrode modified with copper oxide nanoparticles. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0527-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Gold nanoparticle/carbon nanotube hybrids as an enhanced material for sensitive amperometric determination of tryptophan. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.02.024] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Liu L, Zhao F, Xiao F, Zeng B. Improved Voltammetric Response of L-Tyrosine on Multiwalled Carbon Nanotubes-Ionic Liquid Composite Coated Glassy Electrodes in the Presence of Cupric Ion. ELECTROANAL 2008. [DOI: 10.1002/elan.200804304] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yu X, Mai Z, Xiao Y, Zou X. Electrochemical Behavior and Determination of L-Tyrosine at Single-walled Carbon Nanotubes Modified Glassy Carbon Electrode. ELECTROANAL 2008. [DOI: 10.1002/elan.200704179] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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