1
|
Hamidi M, Zarei K. Electrochemical determination of theophylline on a glassy carbon electrode modified with reduced graphene oxide-sodium dodecyl sulfate-Nafion composite film. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-3007-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
2
|
Patel BR, Imran S, Ye W, Weng H, Noroozifar M, Kerman K. Simultaneous voltammetric detection of six biomolecules using a nanocomposite of titanium dioxide nanorods with multi-walled carbon nanotubes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.137094] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
3
|
High-efficient of graphene nanocomposite: Application to rapidly simultaneous identification and quantitation of fat-soluble vitamins in different matric samples. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
4
|
Nakhostin R, Zarei K. Simultaneous Determination of Nitrophenol Isomers at Multi-Walled Carbon Nanotube-β-Cyclodextrin-Poly (Diphenylamine) Composite Modified Glassy Carbon Electrode. RUSS J ELECTROCHEM+ 2020. [DOI: 10.1134/s1023193520030088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
5
|
Huang JY, Zhao L, Lei W, Wen W, Wang YJ, Bao T, Xiong HY, Zhang XH, Wang SF. A high-sensitivity electrochemical aptasensor of carcinoembryonic antigen based on graphene quantum dots-ionic liquid-nafion nanomatrix and DNAzyme-assisted signal amplification strategy. Biosens Bioelectron 2017; 99:28-33. [PMID: 28735043 DOI: 10.1016/j.bios.2017.07.036] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 06/17/2017] [Accepted: 07/13/2017] [Indexed: 10/19/2022]
Abstract
In this work, we have developed an electrochemical aptasensor for high-sensitivity determination of carcinoembryonic antigen (CEA) based on lead ion (Pb2+)-dependent DNAzyme-assisted signal amplification and graphene quantum dot-ionic liquid-nafion (GQDs-IL-NF) composite film. We designed hairpin DNA containing CEA-specific aptamers and DNAzyme chains. In the presence of CEA, hairpin DNA recognized the target and performed a DNAzyme-assisted signal amplification reaction to yield a large number of single-stranded DNA. The GQDs-IL-NF composite film was immobilized on the glassy carbon electrode for the interaction with single-stranded DNA through noncovalent π-π stacking interaction. Therefore, the methylene blue-labeled substrate DNA (MB-substrate) was fixed on the electrode and exhibited an initial electrochemical signal. Under optimal conditions, the response current change was proportional to the concentration of CEA, demonstrating a wide linear range from 0.5fgmL-1 to 0.5ngmL-1, with a low detection limit of 0.34fgmL-1. Furthermore, the proposed aptasensor was successfully applied in determining CEA in serum samples, showing its superior prospects in clinical diagnosis.
Collapse
Affiliation(s)
- Jing-Yi Huang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Lang Zhao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Wan Lei
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Wei Wen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China.
| | - Yi-Jia Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Ting Bao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Hua-Yu Xiong
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Xiu-Hua Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Sheng-Fu Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| |
Collapse
|
6
|
Sun Z, Ma X, Hu X. Electrocatalytic dechlorination of 2,3,5-trichlorophenol on palladium/carbon nanotubes-nafion film/titanium mesh electrode. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:14355-14364. [PMID: 28429272 DOI: 10.1007/s11356-017-9004-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 04/07/2017] [Indexed: 06/07/2023]
Abstract
Palladium/carbon nanotubes-nafion film-modified titanium mesh electrode (Pd/CNTs-nafion film/Ti electrode) was prepared and used for catalytic dechlorination of 2,3,5-trichlorophenol (2,3,5-TCP). The influences of factors, such as Pd2+ concentration, plating solution pH, and electrodeposition time and current, on the preparation of the electrode were studied by cyclic voltammetry (CV) to establish the optimal electrode preparation conditions. Additionally, the CV results highlighted that the addition of the CNTs-nafion film could enhance the electrochemical performance of the electrode. The Pd/CNTs-nafion film/Ti electrode was characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and inductively coupled plasma-atomic emission spectrometry (ICP-AES). The electrode exhibited good stability and high catalytic dechlorination capacity on 2,3,5-TCP-100 mg L-1 2,3,5-TCP was completely dechlorinated within 100 min at a dechlorination current of 5 mA and an initial solution pH of 2.3. High-performance liquid chromatography (HPLC) was used to detect the chlorinated phenolic intermediates, and the results revealed that the final products were mainly phenol. The kinetics studies revealed that the dechlorination of 2,3,5-TCP followed two-stage mixed order kinetics, and a possible degradation pathway for 2,3,5-TCP was proposed.
Collapse
Affiliation(s)
- Zhirong Sun
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, People's Republic of China.
| | - Xiaoyue Ma
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Xiang Hu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
| |
Collapse
|
7
|
D'Souza OJ, Mascarenhas RJ, Satpati AK, Mane V, Mekhalif Z. Application of a Nanosensor Based on MWCNT-Sodium Dodecyl Sulphate Modified Electrode for the Analysis of a Novel Drug, Alpha-Hydrazinonitroalkene in Human Blood Serum. ELECTROANAL 2017. [DOI: 10.1002/elan.201700114] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ozma J D'Souza
- Research and Development Centre; Bharathiar University; Coimbatore - 641 014, Tamil Nadu India
| | - Ronald J Mascarenhas
- Research and Development Centre; Bharathiar University; Coimbatore - 641 014, Tamil Nadu India
- Electrochemistry Research Group, Department of Chemistry; St. Joseph's College; Lalbagh Road Bangalore - 560 027 Karnataka India
| | - Ashis K Satpati
- Analytical Chemistry Division, Bhabha Atomic Research Centre; Anushakthi Nagar, Trombay; Mumbai - 400 094, Maharashtra India
| | - Vaijinath Mane
- Department of Chemistry; Indian Institute of Technology; Bombay, Mumbai - 400 076 India
| | - Zineb Mekhalif
- Laboratoire de Chimie et d'Electrochimie des Surface; University of Namur; 61 Rue de Bruxelles B-5000 Namur Belgium
| |
Collapse
|
8
|
Pandit UJ, Naikoo GA, Sheikh MUD, Khan GA, Raj KK, Limaye SN. Electrochemical determination of an anti-hyperlipidimic drug pitavastatin at electrochemical sensor based on electrochemically pre-treated polymer film modified GCE. J Pharm Anal 2017; 7:258-264. [PMID: 29404047 PMCID: PMC5790704 DOI: 10.1016/j.jpha.2017.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 03/05/2017] [Accepted: 03/12/2017] [Indexed: 11/30/2022] Open
Abstract
An electrochemically pretreated silver macroporous (Ag MP) multiwalled carbon nanotube modified glassy carbon electrode (PAN-Ag MP-MWCNT-GCE) was fabricated for the selective determination of an anti-hyperlipidimic drug, pitavastatin (PST). The fabricated electrochemical sensor was characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The fabricated electrode was employed in quantifying and determining PST through differential pulse adsorptive stripping voltammetry (DPAdSV) and CV. The electrode fabrication proceeded with remarkable sensitivity to the determination of PST. The effect of various optimized parameters such as pH, scan rate (ν), accumulation time (tacc), accumulation potential (Uacc) and loading volumes of Ag MP-MWCNT suspension were investigated to evaluate the performance of synthesized electrochemical sensor and to propose a simple, accurate, rapid and economical procedure for the quantification of PST in pharmaceutical formulations and biological fluids. A linear response of PST concentration in the range 2.0×10−7–1.6×10−6 M with low detection (LOD) and quantification (LOQ) limits of 9.66±0.04 nM and 32.25±0.07 nM, respectively, were obtained under these optimized conditions.
Collapse
Affiliation(s)
- Umar J Pandit
- Department of Chemistry, Dr. Harisingh Gour University, Sagar, M.P., India
| | - Gowhar A Naikoo
- Department of Mathematics and Sciences, College of Arts and Applied Sciences, Dofar University, Salalah, Oman
| | | | - Gulzar A Khan
- Department of Chemistry, Dr. Harisingh Gour University, Sagar, M.P., India
| | - K K Raj
- Department of Chemistry, Dr. Harisingh Gour University, Sagar, M.P., India
| | - S N Limaye
- Department of Chemistry, Dr. Harisingh Gour University, Sagar, M.P., India
| |
Collapse
|
9
|
Zhou E, Wu J, Li L, Yang M, Jin J, Fu X, Chang W, Xie C. 3D Nano-structure L-cysteine/AuNPs/Bi2
O3
Modified Glass Carbon Electrode as Chemical Sensor for Highly Sensitive and Selective Detection Cu (II). ELECTROANAL 2016. [DOI: 10.1002/elan.201501147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Enhong Zhou
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology, West; Anhui University, Lu'an; Anhui 237015 P. R. China
- West Anhui Health Vocational College, Lu'an; Anhui 237015 P. R. China
| | - Ju Wu
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology, West; Anhui University, Lu'an; Anhui 237015 P. R. China
| | - Linna Li
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology, West; Anhui University, Lu'an; Anhui 237015 P. R. China
| | - Mei Yang
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology, West; Anhui University, Lu'an; Anhui 237015 P. R. China
| | - Juncheng Jin
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology, West; Anhui University, Lu'an; Anhui 237015 P. R. China
| | - Xucheng Fu
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology, West; Anhui University, Lu'an; Anhui 237015 P. R. China
| | - Wengui Chang
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology, West; Anhui University, Lu'an; Anhui 237015 P. R. China
| | - Chenggen Xie
- Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology, West; Anhui University, Lu'an; Anhui 237015 P. R. China
| |
Collapse
|
10
|
Development of a glucose biosensor based on electrodeposited gold nanoparticles–polyvinylpyrrolidone–polyaniline nanocomposites. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.08.025] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|