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Ma JX, Wang YL, Chen C, Cao JT, Liu YM. Label-Free Electrochemiluminescent (ECL) Determination of Mercury (II) Based upon the Cation Exchange Reaction with Cadmium Sulfide Nanowires. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2149768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jin-Xin Ma
- College of Chemistry and Chemical Engineering, Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, Xinyang Normal University, Xinyang, China
| | - Yu-Ling Wang
- College of Chemistry and Chemical Engineering, Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, Xinyang Normal University, Xinyang, China
- Shandong Key Laboratory of Biochemical Analysis, Qingdao University of Science and Technology, Qingdao, China
| | - Chen Chen
- College of Chemistry and Chemical Engineering, Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, Xinyang Normal University, Xinyang, China
| | - Jun-Tao Cao
- College of Chemistry and Chemical Engineering, Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, Xinyang Normal University, Xinyang, China
| | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering, Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, Xinyang Normal University, Xinyang, China
- College of Chemistry and Pharmaceutical Engineering, Huanghuai University, Zhumadian, China
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Bao Y, Han K, Ding Z, Li Y, Li T, Guan M, Li G. A label-free electrochemiluminescence immunosensor for carbohydrate antigen 153 based on polypyrrole-luminol-AuNPs nanocomposites with bi-catalysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 253:119562. [PMID: 33611216 DOI: 10.1016/j.saa.2021.119562] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/29/2020] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
Polypyrrole-luminol-AuNPs nanocomposites were prepared and used to develop a sensitive label-free electrochemiluminescence (ECL) immunosensor for carbohydrate antigen 153 (CA153) detection. Firstly, polypyrrole (PPY) nanoparticles were synthesized by a chemical oxidation method using FeCl3 as an oxidizing agent, then luminol and gold nanoparticles (AuNPs) were combined with PPY nanoparticles through electrostatic interaction to form PPY-luminol-AuNPs nanocomposites. The nanocomposites were characterized by transmission electron microscopy (TEM), UV-Vis absorption spectra, atomic emission spectrometry (AES), X-ray diffraction (XRD) and electrochemical impedance spectroscopy (EIS). Especially, iron element was also detected in the nanocomposites. The PPY-luminol-AuNPs nanocomposites showed excellent ECL activity due to the bi-catalysis of iron ion and gold nanoparticles on the ECL of luminol. Furthermore, the nanocomposites showed good film-forming property, and it can be fixed on electrode surface without the assistance of other film-forming materials. On this basis, an ECL immunosensor for CA153 was constructed by covalently immobilizing anti-CA153 on PPY-luminol-AuNPs modified indium-doped tin oxide (ITO) electrode. In the presence of CA153, a remarkable decrease in ECL signals was observed due to the formation of anti-CA153/CA153 complex. The immunosensor showed a good linear relationship in the concentration range of 0.001 to 700 U/mL for CA153, and the detection limit was 5.8 × 10-4 U/mL (S/N = 3). Furthermore, the ECL immunosensor was applied to the determination of CA153 in practical human serum sample.
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Affiliation(s)
- Ying Bao
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054, PR China
| | - Kexin Han
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054, PR China
| | - Zhifang Ding
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054, PR China
| | - Yue Li
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054, PR China
| | - Ting Li
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054, PR China
| | - Ming Guan
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054, PR China
| | - Guixin Li
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054, PR China.
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Tian C, Wang L, Luan F, Fu X, Zhuang X, Chen L. A novel electrochemiluminescent emitter of europium hydroxide nanorods and its application in bioanalysis. Chem Commun (Camb) 2019; 55:12479-12482. [DOI: 10.1039/c9cc07129f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The high electrochemiluminescence intensity from europium hydroxide nanorods was reported for sensitive detection of thrombin.
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Affiliation(s)
- Chunyuan Tian
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Li Wang
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Feng Luan
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Xiuli Fu
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Xuming Zhuang
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
- China
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