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Zhu C, Zhang J, Zhang S, Liu C, Liu X, Jin J, Zheng D. An Amperometric Biomedical Sensor for the Determination of Homocysteine Using Gold Nanoparticles and Acetylene Black-Dihexadecyl Phosphate-Modified Glassy Carbon Electrode. MICROMACHINES 2023; 14:198. [PMID: 36677259 PMCID: PMC9865262 DOI: 10.3390/mi14010198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/05/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
A novel nanocomposite film composed of gold nanoparticles and acetylene black-dihexadecyl phosphate was fabricated and modified on the surface of a glassy carbon electrode through a simple and controllable dropping and electropolymerization method. The nanocomposite film electrode showed a good electrocatalytic response to the oxidation of homocysteine and can work as an amperometric biomedical sensor for homocysteine. With the aid of scanning electron microscopy, energy dispersive X-ray technology and electrochemical impedance spectroscopy, the sensing interface was characterized, and the sensing mechanism was discussed. Under optimal conditions, the oxidation peak current of homocysteine was linearly increased with its concentration in the range of 3.0 µmol/L~1.0 mmol/L, and a sensitivity of 18 nA/(μmol/L) was obtained. Furthermore, the detection limit was determined as 0.6 µmol/L, and the response time was detected as 3 s. Applying the nanocomposite film electrode for monitoring the homocysteine in human blood serum, the results were satisfactory.
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Affiliation(s)
- Chunnan Zhu
- College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
- Key Laboratory of Brain Cognitive Science (State Ethnic Affairs Commission), South-Central Minzu University, Wuhan 430074, China
- Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis & Treatment, Wuhan 430074, China
| | - Jingfang Zhang
- College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
| | - Shunrun Zhang
- College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
| | - Chao Liu
- College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
- Key Laboratory of Brain Cognitive Science (State Ethnic Affairs Commission), South-Central Minzu University, Wuhan 430074, China
- Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis & Treatment, Wuhan 430074, China
| | - Xiaojun Liu
- College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
- Key Laboratory of Brain Cognitive Science (State Ethnic Affairs Commission), South-Central Minzu University, Wuhan 430074, China
- Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis & Treatment, Wuhan 430074, China
| | - Jian Jin
- The First Hospital of Wuhan, Wuhan 430022, China
| | - Dongyun Zheng
- College of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China
- Hubei Key Laboratory of Medical Information Analysis and Tumor Diagnosis & Treatment, Wuhan 430074, China
- The First Hospital of Wuhan, Wuhan 430022, China
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2
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Biosensing based on pencil graphite electrodes. Talanta 2018; 190:235-247. [DOI: 10.1016/j.talanta.2018.07.086] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 07/24/2018] [Accepted: 07/27/2018] [Indexed: 12/20/2022]
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Unal DN, Eksin E, Erdem A. Electrochemical Determination of 6-Thioguanine and Its Interaction with DNA Oligonucleotides Using Disposable Graphite Pencil Electrodes. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1338714] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Didem Nur Unal
- Faculty of Pharmacy, Analytical Chemistry Department, Ege University, Izmir, Turkey
| | - Ece Eksin
- Faculty of Pharmacy, Analytical Chemistry Department, Ege University, Izmir, Turkey
| | - Arzum Erdem
- Faculty of Pharmacy, Analytical Chemistry Department, Ege University, Izmir, Turkey
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4
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Electrochemical assay for determination of gluten in flour samples. Food Chem 2015; 184:183-7. [DOI: 10.1016/j.foodchem.2015.03.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 03/11/2015] [Accepted: 03/12/2015] [Indexed: 12/18/2022]
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Madasamy T, Santschi C, Martin OJF. A miniaturized electrochemical assay for homocysteine using screen-printed electrodes with cytochrome c anchored gold nanoparticles. Analyst 2015. [DOI: 10.1039/c5an00752f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Electrochemical point-of-care analysis of homocysteine in a drop of the blood plasma samples.
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Affiliation(s)
- Thangamuthu Madasamy
- Nanophotonics and Metrology Laboratory (NAM)
- Swiss Federal Institute of Technology Lausanne (EPFL)
- CH-1015 Lausanne
- Switzerland
| | - Christian Santschi
- Nanophotonics and Metrology Laboratory (NAM)
- Swiss Federal Institute of Technology Lausanne (EPFL)
- CH-1015 Lausanne
- Switzerland
| | - Olivier J. F. Martin
- Nanophotonics and Metrology Laboratory (NAM)
- Swiss Federal Institute of Technology Lausanne (EPFL)
- CH-1015 Lausanne
- Switzerland
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