1
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Kanagavalli P, Eissa S. Exploring various carbon nanomaterials-based electrodes modified with polymelamine for the reagentless electrochemical immunosensing of Claudin18.2. Biosens Bioelectron 2024; 259:116388. [PMID: 38761744 DOI: 10.1016/j.bios.2024.116388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 05/06/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
Claudin18.2 (CLDN18.2) is a tight junction protein often overexpressed in various solid tumors, including gastrointestinal and esophageal cancers, serving as a promising target and potential biomarker for tumor diagnosis, treatment assessment, and prognosis. Despite its significance, no biosensor has been reported to date for the detection of CLDN18.2. Here, we present the inaugural immunosensor for CLDN18.2. In this study, an amine-rich conducting polymer of polymelamine (PM) was electrografted onto different carbon nanomaterial-based screen-printed electrodes (SPEs), including carbon (C), graphene (Gr), graphene oxide (GO), carbon nanotube (CNT), and carbon nanofiber (CNF) via cyclic voltammetry. A comparative study was performed to explore the best material for the preparation of the PM-modified electrodes to be used as in-situ redox substrate for the immunosensor fabrication. The surface chemistry and structural features of pristine and PM-deposited electrodes were analyzed using Raman and scanning electron microscopy (SEM) techniques. Our results showed that the PM deposited on Gr and CNT/SPEs exhibited the most significant and stable redox behavior in PBS buffer. The terminal amine moieties on the PM-modified electrode surfaces were utilized for immobilizing anti-CLDN18.2 monoclonal antibodies via N-ethyl-N'-(3-(dimethylamino)propyl)carbodiimide/N-hydroxysuccinimide chemistry to construct the electrochemical immunosensor platform. Differential pulse voltammetry-based immunosensing of CLDN18.2 protein on BSA/anti-CLDN18.2/PM-Gr/SPE and BSA/anti-CLDN18.2/PM-CNT/SPE exhibited excellent selectivity against other proteins such as CD1, PDCD1, and ErBb2. The limits of detection of these two immunosensor platforms were calculated to be 7.9 pg/mL and 0.104 ng/mL for the CNT and Gr immunosensors, respectively. This study demonstrated that the PM-modified Gr and CNT electrodes offer promising platforms not only for the reagentless signaling but also for covalent immobilization of biomolecules. Moreover, these platforms offer excellent sensitivity and selectivity for the detection of CLDN18.2 due to its enhanced stable redox activity. The immunosensor demonstrated promising results for the sensitive detection of CLDN18.2 in biological samples, addressing the critical need for early gastric cancer diagnosis.
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Affiliation(s)
- Pandiyaraj Kanagavalli
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates
| | - Shimaa Eissa
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates; Center for Catalysis and Separations, Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates.
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2
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Kanagavalli P, Eissa S. Redox probe-free electrochemical immunosensor utilizing electropolymerized melamine on reduced graphene oxide for the point-of-care diagnosis of gastric cancer. Talanta 2024; 270:125549. [PMID: 38157735 DOI: 10.1016/j.talanta.2023.125549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024]
Abstract
Pepsinogen I (PG I) is a biomarker that plays a crucial role in the diagnosis of gastric cancer. The development of biosensor to monitor PG I overexpression in serum is crucial for early gastric cancer diagnosis, offering a less invasive alternative to the costly and uncomfortable gastroscopy procedure. This study presents a cost-efficient, scalable and disposable label-free biosensing strategy for detecting PG I, utilizing a redox-active polymelamine electrodeposited on a reduced graphene oxide screen-printed electrode surface (PM-rGO/SPE). Under optimized conditions, the conducting polymer PM was deposited on the rGO/SPE via a potentiodynamic method. The structural and morphological features of PM-rGO/SPE were analyzed with the assistance of Raman and Scanning Electron Microscopy analysis. Specific monoclonal anti-PG I antibodies were immobilized on the in situ prepared redox-active layer via EDC/NHS chemistry to develop a novel electrochemical immunosensor. Unlike the traditional immunosensing strategies which utilizes external redox probe solution for measuring the signal, the developed configuration allowed for redox-probe free monitoring of current changes of the redox active PM resulting from the formation of the immunocomplex on the electrode surface. Utilizing this method, PG I detection spanned a clinically relevant concentration range of 0.01-200 ng/mL, with a low limit of detection at 9.1 pg/mL. The electrochemical immunosensor demonstrated specificity against other biomarkers such as PDCD1, ErBb2, and CD28 with negligible interference. The immunosensor exhibited excellent recovery capabilities for PG I detection in serum samples. These findings underscore the potential of the PM-rGO/SPE immunosensor as a point-of-care diagnostic tool for gastric cancer.
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Affiliation(s)
- Pandiyaraj Kanagavalli
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates
| | - Shimaa Eissa
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates; Advanced Materials Chemistry Center (AMCC), Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates.
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3
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Natarajan T, Gopinathan M, Thiruppathi M, Adeniyi O, Chang JL, Zen JM, Tesfalidet S, Mikkola JP. Detection of nitrification inhibitor dicyandiamide: A direct electrochemical approach. Food Chem X 2023; 18:100658. [PMID: 37032745 PMCID: PMC10074502 DOI: 10.1016/j.fochx.2023.100658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/09/2023] [Accepted: 03/20/2023] [Indexed: 03/29/2023] Open
Abstract
A single run approach for rapid detection of nitrification inhibitor, dicyandiamide (DCD) using electrogenerated chlorine assisted polymerization through azo bond, under acidic conditions and at a preanodized screen printed carbon electrode (SPCE*) is presented. The role of chloride containing support electrolyte in acidic medium along with oxygen functionalities/edge sites are found to be crucial for the successful oxidative polymerization and subsequent adsorption of oxidized products on the electrode surface. The SEM, cyclic voltammetry and X-ray photoelectron spectroscopy studies were used to characterize the polymer film formation. The system exhibited a linear range between 20 and 170 μM with a detection limit of 3 μM (S/N = 3). The method was successfully tested for the detection of DCD in dairy and water samples. Simultaneous detection of DCD in the presence of melamine has also been demonstrated.
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4
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Ali MR, Bacchu MS, Das S, Akter S, Rahman MM, Saad Aly MA, Khan MZH. Label free flexible electrochemical DNA biosensor for selective detection of Shigella flexneri in real food samples. Talanta 2023; 253:123909. [PMID: 36152607 DOI: 10.1016/j.talanta.2022.123909] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 12/13/2022]
Abstract
An effective tool for early-stage selective detection of the foodborne bacterial pathogen Shigella flexneri (S. flexneri) is essential for diagnosing infectious diseases and controlling outbreaks. Here, a label-free electrochemical DNA biosensor for monitoring S. flexneri is developed. To fabricate the biosensor, detection probe (capture probe) is immobilized on the surface of poly melamine (P-Mel) and poly glutamic acid (PGA), and disuccinimidyl suberate (DSS) functionalized flexible indium tin oxide (ITO) electrode. Anthraquinone-2-sulfonic acid monohydrate sodium salt (AQMS) is used as a signal indicator for the detection of S. flexneri. The proposed DNA biosensor exhibits a wide dynamic range with concentration of the targets ranging from 1 × 10-6 to 1 × 10-21 molL-1 with a limit of detection (LOD) of 7.4 × 10-22 molL-1 in the complementary linear target of S. flexneri, and a detection range of 8 × 1010-80 cells/ml with a LOD of 10 cells/ml in real S. flexneri sample. The proposed flexible biosensor provides high specificity for the detection of S. flexneri compared to other target signals such as discrete base mismatches and different bacterial species. The developed biosensor displayed excellent recoveries in detecting S. flexneri in spiked food samples. Therefore, the proposed biosensor can serve as a model methodology for the detection of other pathogens in a broad span of industries.
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Affiliation(s)
- M R Ali
- Dept. of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh; Laboratory of Nano-bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - M S Bacchu
- Dept. of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh; Laboratory of Nano-bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - S Das
- Dept. of Microbiology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - S Akter
- Dept. of Microbiology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - M M Rahman
- Faculty of Science and Information Technology, Daffodil International University, Dhaka, 1207, Bangladesh
| | - M Aly Saad Aly
- Department of New Biology, Daegu Gyeongbuk Institute of Science & Technology (DGIST), 333 Techno Jungang-daero, Daegu, 42988, South Korea
| | - M Z H Khan
- Dept. of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh; Laboratory of Nano-bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
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5
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Saraswat A, Kumar S. A Topical Study of Electrochemical Response of Functionalized Conducting Polyaniline: An Overview. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Chen Y, Qiu C, Zou Z, Ling Y, Gao F, Shao Y, Wang Q. The integration of conductive polymelamine and NiFe hydroxides to boost the electrochemical overall water splitting. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Ma J, Wu W, Xiao X, Feng Y, Hao Y, Zhang J, Liu C, Zhang P, Chen J, Zeng R, Chen S. New insight into electropolymerization of melamine. II: Low onset potential deposition of polymelamine with trace active bromine. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Electrochemical Synthesis of Polymelamine/Gold Nanoparticle Modified Carbon Paste Electrode as Voltammetric Sensor of Dopamine. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Cheng YY, Zhan T, Feng XZ, Han GC. A synergistic effect of gold nanoparticles and melamine with signal amplification for C-reactive protein sensing. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115417] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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10
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Tham GX, Subrata A, Fisher AC, Webster RD. Properties of electrochemically copolymerized aniline and melamine on functionalized multiwalled‐carbon nanotube film electrodes. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Guo Xiong Tham
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore Singapore
- Cambridge Centre for Advanced Research and Education in Singapore Singapore Singapore
| | - Arnold Subrata
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore Singapore
| | - Adrian C. Fisher
- Cambridge Centre for Advanced Research and Education in Singapore Singapore Singapore
- Department of Chemical Engineering and Biotechnology University of Cambridge Cambridge UK
| | - Richard D. Webster
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore Singapore
- Cambridge Centre for Advanced Research and Education in Singapore Singapore Singapore
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11
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Kumar N, Goyal RN. Simultaneous determination of melatonin and 5-hydroxytrptophan at the disposable poly-(melamine)/poly-(o-aminophenol) composite modified screen printed sensor. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114458] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Quintero-Jaime AF, Cazorla-Amorós D, Morallón E. Electrochemical functionalization of single wall carbon nanotubes with phosphorus and nitrogen species. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135935] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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13
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Ultrasensitive detection of EGFR gene based on surface plasmon resonance enhanced electrochemiluminescence of CuZnInS quantum dots. Anal Chim Acta 2018; 1009:73-80. [DOI: 10.1016/j.aca.2018.01.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 12/29/2017] [Accepted: 01/02/2018] [Indexed: 12/29/2022]
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14
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Chen S, Liu S, Wen A, Zhang J, Nie H, Chen J, Zeng R, Long Y, Jin Y, Mai R. New insight into electropolymerization of melamine. I: Chloride promoted growth of polymelamine in different pH medium. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.146] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Heymann L, Schiller B, Noei H, Stierle A, Klinke C. A New Synthesis Approach for Carbon Nitrides: Poly(triazine imide) and Its Photocatalytic Properties. ACS OMEGA 2018; 3:3892-3900. [PMID: 29732448 PMCID: PMC5928491 DOI: 10.1021/acsomega.8b00294] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 03/28/2018] [Indexed: 05/15/2023]
Abstract
Poly(triazine imide) (PTI) is a material belonging to the group of carbon nitrides and has shown to have competitive properties compared to melon or g-C3N4, especially in photocatalysis. As most of the carbon nitrides, PTI is usually synthesized by thermal or hydrothermal approaches. We present and discuss an alternative synthesis for PTI which exhibits a pH-dependent solubility in aqueous solutions. This synthesis is based on the formation of radicals during electrolysis of an aqueous melamine solution, coupling of resulting melamine radicals and the final formation of PTI. We applied different characterization techniques to identify PTI as the product of this reaction and report the first liquid state NMR experiments on a triazine-based carbon nitride. We show that PTI has a relatively high specific surface area and a pH-dependent adsorption of charged molecules. This tunable adsorption has a significant influence on the photocatalytic properties of PTI, which we investigated in dye degradation experiments.
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Affiliation(s)
- Leonard Heymann
- Institute
of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Björn Schiller
- Institute
of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Heshmat Noei
- DESY
NanoLab, Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
| | - Andreas Stierle
- DESY
NanoLab, Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
- Physics
Department, University of Hamburg, 20355 Hamburg, Germany
| | - Christian Klinke
- Institute
of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
- Department
of Chemistry, Swansea University, Singleton Park, Swansea SA2 8PP, United Kingdom
- E-mail:
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16
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Tsai H, Chang CW, Wu LX, Hsieh CC, Chiou MD, Fuh CB. Feasibility Study of Biosensors Based on Polymelamine-modified Screen-printed Carbon Electrodes. ELECTROANAL 2017. [DOI: 10.1002/elan.201700156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hweiyan Tsai
- Department of Medical Applied Chemistry; Chung Shan Medical University; Taichung 402 Taiwan, Tel: +886 4 24730022 ext. 12135, Fax: +886 4 23248189
- Department of Medical Education; Chung Shan Medical University Hospital; Taichung 402 Taiwan
| | - Che-Wei Chang
- Department of Medical Applied Chemistry; Chung Shan Medical University; Taichung 402 Taiwan, Tel: +886 4 24730022 ext. 12135, Fax: +886 4 23248189
| | - Luo-Xian Wu
- Department of Medical Applied Chemistry; Chung Shan Medical University; Taichung 402 Taiwan, Tel: +886 4 24730022 ext. 12135, Fax: +886 4 23248189
| | - Chih-Chung Hsieh
- Department of Medical Applied Chemistry; Chung Shan Medical University; Taichung 402 Taiwan, Tel: +886 4 24730022 ext. 12135, Fax: +886 4 23248189
| | - Ming-Da Chiou
- Department of Medical Applied Chemistry; Chung Shan Medical University; Taichung 402 Taiwan, Tel: +886 4 24730022 ext. 12135, Fax: +886 4 23248189
| | - Chwan Bor Fuh
- Department of Applied Chemistry; National Chi Nan University; Natu Taiwan
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17
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Kumar N, Rosy, Goyal RN. A melamine based molecularly imprinted sensor for the determination of 8-hydroxydeoxyguanosine in human urine. Talanta 2017; 166:215-222. [DOI: 10.1016/j.talanta.2017.01.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 01/19/2017] [Accepted: 01/20/2017] [Indexed: 01/03/2023]
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18
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Kannan A, Sevvel R. A highly selective and simultaneous determination of paracetamol and dopamine using poly-4-amino-6-hydroxy-2-mercaptopyrimidine (Poly-AHMP) film modified glassy carbon electrode. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.03.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Amidi S, Ardakani YH, Amiri-Aref M, Ranjbari E, Sepehri Z, Bagheri H. Sensitive electrochemical determination of rifampicin using gold nanoparticles/poly-melamine nanocomposite. RSC Adv 2017. [DOI: 10.1039/c7ra04865c] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Green and facile method for fabrication of a conductive polymer–Au nanocomposite platform as a novel electrochemical sensing layer for rifampicin.
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Affiliation(s)
- S. Amidi
- Department of Medicinal Chemistry
- School of Pharmacy & Protein Technology Research Center
- Shahid Beheshti University of Medical Sciences
- Tehran
- Iran
| | - Y. Hosseinzadeh Ardakani
- Biopharmaceutics and Pharmacokinetics Division
- Department of Pharmaceutics
- Faculty of Pharmacy
- Tehran University of Medical Sciences
- Tehran 14155-6451
| | - M. Amiri-Aref
- Biopharmaceutics and Pharmacokinetics Division
- Department of Pharmaceutics
- Faculty of Pharmacy
- Tehran University of Medical Sciences
- Tehran 14155-6451
| | - E. Ranjbari
- Biopharmaceutics and Pharmacokinetics Division
- Department of Pharmaceutics
- Faculty of Pharmacy
- Tehran University of Medical Sciences
- Tehran 14155-6451
| | - Z. Sepehri
- Department of Internal Medicine
- Zabol University of Medical Sciences
- Zabol
- Iran
| | - H. Bagheri
- Chemical Injuries Research Center
- Baqiyatallah University of Medical Sciences
- Tehran
- Iran
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20
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Gu Y, Yan X, Li C, Zheng B, Li Y, Liu W, Zhang Z, Yang M. Biomimetic sensor based on molecularly imprinted polymer with nitroreductase-like activity for metronidazole detection. Biosens Bioelectron 2016; 77:393-9. [DOI: 10.1016/j.bios.2015.09.060] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/24/2015] [Accepted: 09/25/2015] [Indexed: 01/09/2023]
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21
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Halevy S, Korin E, Bettelheim A. Electropolymerization as a new route to g-C3N4 coatings on TiO2 nanotubes for solar applications. RSC Adv 2016. [DOI: 10.1039/c6ra18855a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple procedure comprising of electropolymerization followed by heat treatment allows conductive 3D structures, such TiO2 nanotubes, to be coated with thin and uniformly distributed g-C3N4 films.
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Affiliation(s)
- S. Halevy
- Chemical Engineering Department
- Ben Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - E. Korin
- Chemical Engineering Department
- Ben Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - A. Bettelheim
- Chemical Engineering Department
- Ben Gurion University of the Negev
- Beer-Sheva 84105
- Israel
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22
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Cotchim S, Thavarungkul P, Kanatharana P, Limbut W. A new strategy for 2,4,6-Trinitrotoluene adsorption and electrochemical reduction on poly(melamine)/graphene oxide modified electrode. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.10.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Niedziałkowski P, Bogdanowicz R, Zięba P, Wysocka J, Ryl J, Sobaszek M, Ossowski T. Melamine-modified Boron-doped Diamond towards Enhanced Detection of Adenine, Guanine and Caffeine. ELECTROANAL 2015. [DOI: 10.1002/elan.201500528] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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24
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Gold nanoparticles decorated poly-melamine modified glassy carbon sensor for the voltammetric estimation of domperidone in pharmaceuticals and biological fluids. Talanta 2015; 141:53-9. [DOI: 10.1016/j.talanta.2015.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/11/2015] [Accepted: 03/12/2015] [Indexed: 11/23/2022]
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25
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Baskar S, Thiyagarajan N, Chang JL, Zen JM. Exploring Redox Behavior of Neutral pH Active Poly(melamine) and its Electrocatalytic Origination towards NADH Detection. ELECTROANAL 2015. [DOI: 10.1002/elan.201500280] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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X-Ray Photoelectron Spectroscopic Characterization of Chemically Modified Electrodes Used as Chemical Sensors and Biosensors: A Review. CHEMOSENSORS 2015. [DOI: 10.3390/chemosensors3020070] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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27
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Abstract
Melamine is an emerging contaminant in milk, infant formula and pet food.
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Affiliation(s)
- Ying Li
- Department of Food Quality and Safety
- Jilin University
- Changchun 130062
- China
| | - Jingyue Xu
- Department of Food Quality and Safety
- Jilin University
- Changchun 130062
- China
| | - Chunyan Sun
- Department of Food Quality and Safety
- Jilin University
- Changchun 130062
- China
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28
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Sundaram S, Jagannathan M, Abdul Kadir MR, Palanivel S, Hadibarata T, Mohammed Yusoff AR. A new electro-generated o-dianisidine derivative stabilized MWCNT-modified GCE for low potential gallic acid detection. RSC Adv 2015. [DOI: 10.1039/c5ra06304c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An enone derivative of a o-dianisidine dimer stabilized GCE/MWCNT exhibited low potential gallic acid detection at 0.16 V vs. Ag/AgCl.
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Affiliation(s)
- Sornambikai Sundaram
- Medical Devices & Technology Group
- Faculty of Biosciences & Medical Engineering
- Universiti Teknologi Malaysia
- Malaysia
| | - Madhanagopal Jagannathan
- Medical Devices & Technology Group
- Faculty of Biosciences & Medical Engineering
- Universiti Teknologi Malaysia
- Malaysia
| | - Mohammed Rafiq Abdul Kadir
- Medical Devices & Technology Group
- Faculty of Biosciences & Medical Engineering
- Universiti Teknologi Malaysia
- Malaysia
| | - Sathishkumar Palanivel
- Centre for Sustainable Environment and Water Security (IPASA)
- Research Institute for Sustainable Environment
- Universiti Teknologi Malaysia
- Malaysia
| | - Tony Hadibarata
- Centre for Sustainable Environment and Water Security (IPASA)
- Research Institute for Sustainable Environment
- Universiti Teknologi Malaysia
- Malaysia
| | - Abdul Rahim Mohammed Yusoff
- Centre for Sustainable Environment and Water Security (IPASA)
- Research Institute for Sustainable Environment
- Universiti Teknologi Malaysia
- Malaysia
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He S, Chen Z, Yu Y, Shi L. A novel non-enzymatic hydrogen peroxide sensor based on poly-melamine film modified with platinum nanoparticles. RSC Adv 2014. [DOI: 10.1039/c4ra06925k] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Electrochemical Determination of Pyrogallol at Conducting Poly(3,4-ethylenedioxythiophene) Film-Modified Screen-Printed Carbon Electrodes. ELECTROANAL 2014. [DOI: 10.1002/elan.201400296] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Free chlorine detection based on EC’ mechanism at an electroactive polymelamine-modified electrode. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2014.06.018] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Gupta P, Goyal RN. Polymelamine modified edge plane pyrolytic graphite sensor for the electrochemical assay of serotonin. Talanta 2014; 120:17-22. [DOI: 10.1016/j.talanta.2013.11.075] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 11/25/2013] [Accepted: 11/26/2013] [Indexed: 10/26/2022]
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Xu G, Zhang H, Zhong M, Zhang T, Lu X, Kan X. Imprinted sol–gel electrochemical sensor for melamine direct recognition and detection. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2013.12.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Baskar S, Chang JL, Zen JM. Extremely Stable Copper-Polymelamine Composite Material for Amperometric Hydrogen Peroxide Sensing. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/polb.23378] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Selvaraj Baskar
- Department of Chemistry; National Chung Hsing University; 250 Kuo-Kuang Road Taichung 402 Taiwan
| | - Jen-Lin Chang
- Department of Chemistry; National Chung Hsing University; 250 Kuo-Kuang Road Taichung 402 Taiwan
| | - Jyh-Myng Zen
- Department of Chemistry; National Chung Hsing University; 250 Kuo-Kuang Road Taichung 402 Taiwan
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