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Wu Y, Luo D, Yi J, Li R, Yang D, Pang P, Wang H, Yang W, Zhang Y. A self-powered electrochemical aptasensor for the detection of 17β-estradiol based on carbon nanocages/gold nanoparticles and DNA bioconjugate mediated biofuel cells. Analyst 2024; 149:2621-2628. [PMID: 38546096 DOI: 10.1039/d4an00085d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2024]
Abstract
17β-Estradiol (E2) is an important endogenous estrogen, which disturbs the endocrine system and poses a threat to human health because of its accumulation in the human body. Herein, a biofuel cell (BFC)-based self-powered electrochemical aptasensor was developed for E2 detection. Porous carbon nanocage/gold nanoparticle composite modified indium tin oxide (CNC/AuNP/ITO) and glucose oxidase modified CNC/AuNP/ITO were used as the biocathode and bioanode of BFCs, respectively. [Fe(CN)6]3- was selected as an electroactive probe, which was entrapped in the pores of positively charged magnetic Fe3O4 nanoparticles (PMNPs) and then capped with a negatively charged E2 aptamer to form a DNA bioconjugate. The presence of the target E2 triggered the entrapped [Fe(CN)6]3- probe release due to the removal of the aptamer via specific recognition, which resulted in the transfer of electrons produced by glucose oxidation at the bioanode to the biocathode and produced a high open-circuit voltage (EOCV). Consequently, a "signal-on" homogeneous self-powered aptasensor for E2 assay was realized. Promisingly, the BFC-based self-powered aptasensor has particularly high sensitivity for E2 detection in the concentration range of 0.5 pg mL-1 to 15 ng mL-1 with a detection limit of 0.16 pg mL-1 (S/N = 3). Therefore, the proposed BFC-based self-powered electrochemical aptasensor has great promise to be applied as a successful prototype of a portable and on-site bioassay in the field of environment monitoring and food safety.
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Affiliation(s)
- Yongju Wu
- Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
| | - Dan Luo
- Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
| | - Jinfei Yi
- Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
| | - Rong Li
- Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
| | - Dan Yang
- Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
| | - Pengfei Pang
- Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
| | - Hongbin Wang
- Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
| | - Wenrong Yang
- School of Life and Environmental Sciences, Deakin University, Geelong, VIC 3217, Australia
| | - Yanli Zhang
- Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
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Wang Q, Jiang D, Du X, Shan X, Wang W, Shiigi H, Chen Z. A zinc-air battery assisted self-powered electrochemical sensor for sensitive detection of microcystin-RR. Analyst 2024; 149:2291-2298. [PMID: 38511612 DOI: 10.1039/d4an00200h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Building a high-performance sensing platform is the key to developing sensitive sensors. Herein, a highly sensitive self-powered electrochemical sensor (SPES) was constructed using a WO3·H2O film as the cathode prepared by a hydrothermal method and Zn as the anode, and it could be applied to sensitive detection of microcystin (MC-RR). The WO3·H2O film with a larger specific surface area could boost the oxygen reduction reaction (ORR), which could achieve signal amplification and significantly increase the sensitivity of the sensors. Under the optimal conditions, there was a good linear relationship between the increased electrical power density and the logarithm of MC-RR concentration with a detection limit of 1.31 × 10-15 M (S/N = 3). This method had good anti-interference ability and stability when applied to the determination of MC-RR content in actual samples, which could boost the potential application of electrochemical sensors in the field of environmental monitoring.
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Affiliation(s)
- Qianjun Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, P. R. China.
| | - Ding Jiang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, P. R. China.
| | - Xiaojiao Du
- Oakland International Associated Laboratory, School of Photoelectric Engineering, Changzhou Institute of Technology, Changzhou, Jiangsu, 213032, P. R. China
| | - Xueling Shan
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, P. R. China.
| | - Wenchang Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, P. R. China.
- Analysis and Testing Center, NERC Biomass of Changzhou University, Jiangsu, 213032, PR China
| | - Hiroshi Shiigi
- Department of Applied Chemistry, Osaka Metropolitan University, 1-1 Gakuen, Naka, Sakai, Osaka 599-8531, Japan
| | - Zhidong Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, P. R. China.
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