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Yu X, Shen Q, Yu M, Zhang W, Kang Q, Shen D. An intense cathodic electrochemiluminescence from carbon-nanosheets in situ grown on glassy carbon electrode and application in immunoanalysis via biometallization strategy. Mikrochim Acta 2024; 191:549. [PMID: 39162737 DOI: 10.1007/s00604-024-06624-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 07/31/2024] [Indexed: 08/21/2024]
Abstract
An intense cathodic electrochemiluminescence (ECL) is reported from a polarized glassy carbon electrode (GCE) in peroxydisulfate solution. After the polarization in 1 M Na2SO4 at the potential of - 3.7 V for 3 s, carbon nanosheets (C-NSs) were in situ grown on the surface of the GCE. Measured in 100 mM K2S2O8 solution, the ECL intensity of the GCE/C-NSs is 112-fold that of a bare GCE. The ECL spectrum revealed that the true ECL luminophore in the GCE/C-NSs-peroxydisulfate system is O2/S2O82- which is promoted by C-NSs. When Cu2+ was electrochemically enriched and reduced to Cu(0) on the catalytic sites of C-NSs, the ECL from GCE/C-NSs/Cu in K2S2O8 solution was decreased with increasing logarithmic concentration of Cu2+ in the range from 10 pM to 1 μM, with a limit of detection (LOD) of 3 pM. An immunoanalysis method is proposed via a biometallization strategy using CuS nanoparticles as the tags and carcinoembryonic antigen (CEA) as the model analyte. After the immune recognition in the microplate, the CuS tags in the immunocomplex were dissolved and the resultant Cu2+ was electrochemically enriched and reduced on the catalytic sites of C-NSs, quenching the ECL intensity of GCE/C-NSs-O2/S2O82- system. The proposed ECL immunoanalysis method was used to quantify CEA in actual serum samples with an LOD of 1.0 fg mL-1, possessing the advantages of simple electrode modification, high sensitivity and good reproducibility.
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Affiliation(s)
- Xifeng Yu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Qirui Shen
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Miaomiao Yu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Wei Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Qi Kang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Dazhong Shen
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, People's Republic of China.
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Zhi J, Wang W, Mei X, Li Q, Jiang D, Shan X, Chen X, Chen Z. An electrochemiluminescence sensor based on Ag NPs amplifying PDDA-modified TbPO 4:Ce NWs signal for sensitive detection of lincomycin. Bioelectrochemistry 2024; 158:108702. [PMID: 38669976 DOI: 10.1016/j.bioelechem.2024.108702] [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: 01/29/2024] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024]
Abstract
The residue of lincomycin in water will not only aggravate the drug resistance of bacteria but also cause damage to the human body through biological accumulation. In this work, an electrochemiluminescence (ECL) aptasensor for the detection of lincomycin was constructed based on polydimethyldiallylammonium chloride (PDDA) functionalized Ce-doped TbPO4 nanowires (PDDA-TbPO4:Ce NWs) and silver nanoparticles (Ag NPs). TbPO4:Ce NWs were used as the luminophore, and PDDA was used to functionalize the luminophore to make the surface of the luminophore positively charged. The negatively charged silver nanoparticles were combined with PDDA-TbPO4:Ce NWs by electrostatic interaction. Ag NPs accelerated the electron transfer rate and promoted the ECL efficiency, which finally increased the ECL intensity of TbPO4:Ce NWs by about 4 times. Under the optimal conditions, the detection limit of the ECL sensor was as low as 4.37 × 10-16 M, and the linear range was 1 × 10 - 15 M to 1 × 10 - 5 M, with good selectivity, stability, and repeatability. The sensor can be applied to the detection of lincomycin in water, and the recovery rate is 97.7-103.4 %, which has broad application prospects.
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Affiliation(s)
- Jiajia Zhi
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Wenchang Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; Analysis and Testing Center, NERC Biomass of Changzhou University, Jiangsu 213032, China.
| | - Xue Mei
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Qingyi Li
- Changzhou High-Tech Industry Development Zone Sanwei Industrial Technology Research Instit Co., Ltd, Changzhou 213164, China
| | - Ding Jiang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Xueling Shan
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Xiaohui Chen
- School of Chemistry and Material Engineering, Changzhou Institute of Technology, Changzhou 213032, China
| | - Zhidong Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
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Gong Z, Shao X, Luo J, Sun X, Ma H, Wu D, Fan D, Li Y, Wei Q, Ju H. Cu 2O@PdAg-quenched CdS@CeO 2 heterostructure electrochemiluminescence immunosensor for determination of prostate-specific antigen. Mikrochim Acta 2023; 190:59. [PMID: 36656362 DOI: 10.1007/s00604-023-05635-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 12/25/2022] [Indexed: 01/20/2023]
Abstract
Based on the resonance energy transfer between CdS@CeO2 and Cu2O@PdAg, a quenching immunosensor for sensitive detection of prostate specific antigen (PSA) was constructed. The CdS@CeO2 heterostructure was obtained by in situ growth of CeO2 particles on the surface of CdS nanorods, and stable cathodic ECL emission was achieved using K2S2O8 as coreactant. Cu2O@PdAg was composed of Cu2O with tetradecahedral structure and bimetallic PdAg nanospheres and has a UV-V is absorption range between 600 and 800 nm. It overlaps with the ECL emission spectrum of CdS@CeO2, realizing the effective quenching of the ECL signal, which provides feasibility for subsequent practical application. The immunosensor exhibited good linearity in the concentration range 10 fg·mL-1 ~ 100 ng·mL-1, with a detection limit of 5.6 fg·mL-1. In sample analysis, the recoveries were 99.8-101%, and the relative standard deviation (RSD) was 0.85-1.6% showing great potential and development value for the sensitive detection of prostate cancer.
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Affiliation(s)
- Zhengxing Gong
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Xinrong Shao
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Jing Luo
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Xu Sun
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Hongmin Ma
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Dan Wu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Dawei Fan
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China. .,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.
| | - Yuyang Li
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Huangxian Ju
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.,State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, People's Republic of China
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Zhang J, Zhang X, Bi S. Two-Dimensional Quantum Dot-Based Electrochemical Biosensors. BIOSENSORS 2022; 12:bios12040254. [PMID: 35448314 PMCID: PMC9026491 DOI: 10.3390/bios12040254] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 05/27/2023]
Abstract
Two-dimensional quantum dots (2D-QDs) derived from two-dimensional sheets have received increasing interest owing to their unique properties, such as large specific surface areas, abundant active sites, good aqueous dispersibility, excellent electrical property, easy functionalization, and so on. A variety of 2D-QDs have been developed based on different materials including graphene, black phosphorus, nitrides, transition metal dichalcogenides, transition metal oxides, and MXenes. These 2D-QDs share some common features due to the quantum confinement effects and they also possess unique properties owing to their structural differences. In this review, we discuss the categories, properties, and synthetic routes of these 2D-QDs and emphasize their applications in electrochemical biosensors. We deeply hope that this review not only stimulates more interest in 2D-QDs, but also promotes further development and applications of 2D-QDs in various research fields.
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