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pH sensitive thin films of iron phthalocyanines as electrocatalysts for the detection of neurotransmitters. J Organomet Chem 2023. [DOI: 10.1016/j.jorganchem.2023.122662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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2
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Novel covalent immobilization of cobalt (II) octa acyl chloride phthalocyanines onto phenylethylamine pre-grafted gold via spontaneous amidation. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Highly Sensitive Amperometric Sensor Based on Laccase-Mimicking Metal-Based Hybrid Nanozymes for Adrenaline Analysis in Pharmaceuticals. Catalysts 2021. [DOI: 10.3390/catal11121510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Nanozymes are nanomaterials which exhibit artificial enzymatic activities and are considered as alternatives to natural enzymes. They are characterized by good catalytic activity and high stability, as well as ease and low cost of preparation. In this study, the mimetics of laccase or “nanolaccases” (NLacs) were synthesized by a simple method of chemical reduction of transition metal salts. The NLacs were tested for their catalytic activity in solution and on the electrode surface. The most effective NLacs, namely nAuCePt and nPtFe, were found to possess excellent laccase-like activities capable of oxidizing the endocrine hormone adrenaline (AD). These NLacs were characterized in detail and used for the development of amperometric sensors for AD determination. The amperometric sensors containing the best NLacs, as well as a natural fungal laccase, were constructed. The most effective nAuCePt-containing sensor had good specificity in relation to AD and improved analytical characteristics. It possessed a 384-fold higher sensitivity than adrenaline (230,137 A·M−1·m−2), a 64-fold lower limit of detection (0.025 µM), and a broader linear range (0.085–45 µM) in comparison with the sensor based on natural laccase. The constructed nAuCePt-containing sensor was successfully used for AD analysis in pharmaceutical formulation.
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Tomé LIN, Brett CMA. Polymer/Iron Oxide Nanoparticle Modified Glassy Carbon Electrodes for the Enhanced Detection of Epinephrine. ELECTROANAL 2019. [DOI: 10.1002/elan.201800816] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Luciana I. N. Tomé
- Department of ChemistryFaculty of Sciences and TechnologyUniversity of Coimbra 3004-535 Coimbra Portugal
| | - Christopher M. A. Brett
- Department of ChemistryFaculty of Sciences and TechnologyUniversity of Coimbra 3004-535 Coimbra Portugal
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Masibi KK, Fayemi OE, Adekunle AS, Sherif ESM, Ebenso EE. Electrocatalysis of Lindane Using Antimony Oxide Nanoparticles Based-SWCNT/PANI Nanocomposites. Front Chem 2018; 6:423. [PMID: 30298128 PMCID: PMC6160894 DOI: 10.3389/fchem.2018.00423] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 08/24/2018] [Indexed: 11/24/2022] Open
Abstract
This work describes the chemical synthesis of antimony oxide nanoparticles (AONPs), polyaniline (PANI), acid functionalized single-walled carbon nanotubes (fSWCNTs), and the nanocomposite (AONP-PANI-SWCNT) as catalyst for the trace detection of lindane. Successful synthesis of the nanomaterials was confirmed by Fourier transform infrared (FT-IR) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, x-ray diffraction (XRD) spectroscopy, and scanning electron microscopy (SEM). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used for investigating the electrochemical behavior of the modified electrodes in the ferrocyanide/ferricyanide ([Fe(CN)6]4−/[Fe(CN)6]3−) redox probe. GCE-AONP-PANI-SWCNT exhibited faster electron transport properties as well as higher electroactivity as compared to bare-GCE, GCE-AONPs, GCE-PANI, and GCE-SWCNT electrodes. Electrocatalytic studies further showed that GCE-AONP-PANI-SWCNT modified electrode was stable (after 20 scans) with only a small current drop in lindane (0.57%). The GCE-AONP-PANI-SWCNT electrode with low detection limit of 2.01 nM performed better toward the detection of lindane as compared to other studies in literature. The GCE-AONP-PANI-SWCNT electrode is highly selective toward the detection of lindane in the presence of various organic and inorganic interfering species. Real sample analysis of river water and tap water samples using the developed sensor gave satisfactory percentage recoveries therefore confirming the potential of the proposed sensor for practical application.
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Affiliation(s)
- Kgotla K Masibi
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Material Science Innovation and Modelling Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
| | - Omolola E Fayemi
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Material Science Innovation and Modelling Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
| | - Abolanle S Adekunle
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Material Science Innovation and Modelling Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - El-Sayed M Sherif
- Center of Excellence for Research in Engineering Materials, King Saud University, Al-Riyadh, Saudi Arabia.,Electrochemistry and Corrosion Laboratory, Department of Physical Chemistry, National Research Centre, Cairo, Egypt
| | - Eno E Ebenso
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Material Science Innovation and Modelling Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
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Hierarchical C-N doped NiO with dual-head echinop flowers for ultrasensitive monitoring of epinephrine in human blood serum. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2498-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Mohsin MA, Liu BD, Zhang XL, Yang WJ, Liu LS, Jiang X. Cellular-membrane inspired surface modification of well aligned ZnO nanorods for chemosensing of epinephrine. RSC Adv 2017. [DOI: 10.1039/c6ra26250c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Modified ZnO nanorods array to form a chemical sensor for neurotransmitters. The interspaces between the nanorods offer highly efficient immobilization of the lipid membrane containing the calixarene, which act as receptor molecule.
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Affiliation(s)
- M. A. Mohsin
- Shenyang National Laboratory for Materials Sciences (SYNL)
- Institute of Metal Research (IMR)
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
| | - B. D. Liu
- Shenyang National Laboratory for Materials Sciences (SYNL)
- Institute of Metal Research (IMR)
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
| | - X. L. Zhang
- Shenyang National Laboratory for Materials Sciences (SYNL)
- Institute of Metal Research (IMR)
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
| | - W. J. Yang
- Shenyang National Laboratory for Materials Sciences (SYNL)
- Institute of Metal Research (IMR)
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
| | - L. S. Liu
- Shenyang National Laboratory for Materials Sciences (SYNL)
- Institute of Metal Research (IMR)
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
| | - X. Jiang
- Shenyang National Laboratory for Materials Sciences (SYNL)
- Institute of Metal Research (IMR)
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
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Ribeiro JA, Fernandes PM, Pereira CM, Silva F. Electrochemical sensors and biosensors for determination of catecholamine neurotransmitters: A review. Talanta 2016; 160:653-679. [DOI: 10.1016/j.talanta.2016.06.066] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 06/28/2016] [Accepted: 06/30/2016] [Indexed: 01/03/2023]
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9
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Mphuthi NG, Adekunle AS, Ebenso EE. Electrocatalytic oxidation of Epinephrine and Norepinephrine at metal oxide doped phthalocyanine/MWCNT composite sensor. Sci Rep 2016; 6:26938. [PMID: 27245690 PMCID: PMC4887908 DOI: 10.1038/srep26938] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 05/06/2016] [Indexed: 11/18/2022] Open
Abstract
Glassy carbon electrode (GCE) was modified with metal oxides (MO = Fe3O4, ZnO) nanoparticles doped phthalocyanine (Pc) and functionalized MWCNTs, and the electrocatalytic properties were studied. Successful synthesis of the metal oxide nanoparticles and the MO/Pc/MWCNT composite were confirmed using FTIR, Raman and SEM techniques. The electrodes were characterized using cyclic voltammetry (CV) technique. The electrocatalytic behaviour of the electrode towards epinephrine (EP) and norepinephrine (NE) oxidation was investigated using CV and DPV. Result showed that GCE-MWCNT/Fe3O4/2,3-Nc, GCE-MWCNT/Fe3O429H,31H-Pc, GCE-MWCNT/ZnO/2,3-Nc and GCE-MWCNT/ZnO/29H,31H-Pc electrodes gave enhanced EP and NE current response. Stability study indicated that the four GCE-MWCNT/MO/Pc modified electrodes were stable against electrode fouling effect with the percentage NE current drop of 5.56–5.88% after 20 scans. GCE-MWCNT/Fe3O4/29H,31H-Pc gave the lowest limit of detection (4.6 μM) towards EP while MWCNT/ZnO/29H,31H-Pc gave the lowest limit of detection (1.7 μM) towards NE. The limit of detection and sensitivity of the electrodes compared well with literature. Electrocatalytic oxidation of EP and NE on GCE-MWCNT/MO/Pc electrodes was diffusion controlled with some adsorption of electro-oxidation reaction intermediates products. The electrodes were found to be electrochemically stable, reusable and can be used for the analysis of EP and NE in real life samples.
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Affiliation(s)
- Ntsoaki G Mphuthi
- Material Science Innovation &Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Abolanle S Adekunle
- Material Science Innovation &Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa.,Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Eno E Ebenso
- Material Science Innovation &Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
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Ding M, Zhou Y, Liang X, Zou H, Wang Z, Wang M, Ma J. An electrochemical sensor based on graphene/poly(brilliant cresyl blue) nanocomposite for determination of epinephrine. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2015.12.040] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mahmoudi Moghaddam H, Beitollahi H, Tajik S, Soltani H. Fabrication of a Nanostructure Based Electrochemical Sensor for Voltammetric Determination of Epinephrine, Uric Acid and Folic Acid. ELECTROANAL 2015. [DOI: 10.1002/elan.201500166] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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Pradhan P, Mascarenhas RJ, Thomas T, Namboothiri IN, D’Souza OJ, Mekhalif Z. Electropolymerization of bromothymol blue on carbon paste electrode bulk modified with oxidized multiwall carbon nanotubes and its application in amperometric sensing of epinephrine in pharmaceutical and biological samples. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.08.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Pristine multi-walled carbon nanotubes/SDS modified carbon paste electrode as an amperometric sensor for epinephrine. Talanta 2014; 125:352-60. [DOI: 10.1016/j.talanta.2014.03.027] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 03/12/2014] [Accepted: 03/13/2014] [Indexed: 11/23/2022]
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Thomas T, Mascarenhas RJ, Martis P, Mekhalif Z, Swamy BK. Multi-walled carbon nanotube modified carbon paste electrode as an electrochemical sensor for the determination of epinephrine in the presence of ascorbic acid and uric acid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3294-302. [DOI: 10.1016/j.msec.2013.04.010] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 03/01/2013] [Accepted: 04/05/2013] [Indexed: 11/25/2022]
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16
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Ghica ME, Brett CMA. Simple and Efficient Epinephrine Sensor Based on Carbon Nanotube Modified Carbon Film Electrodes. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.762584] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Nasri Z, Shams E. Application of silica gel as an effective modifier for the voltammetric determination of dopamine in the presence of ascorbic acid and uric acid. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2009.07.089] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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