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Ouyang R, Feng M, Zhao Y, Liu J, Ma Y, Liu X, Liu B, Miao Y. Cubic Na 0.5Bi 0.5TiO 3 nanoperovskite significantly expands the application of sensitive immunosensor for the detection of carcinoembryonic antigen. Mikrochim Acta 2024; 191:381. [PMID: 38858277 DOI: 10.1007/s00604-024-06451-9] [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: 03/03/2024] [Accepted: 05/18/2024] [Indexed: 06/12/2024]
Abstract
Nanosized sodium bismuth perovskite titanate (NBT) was synthesized and first used as the electrochemical immune sensing platform for the sensitive detection of carcinoembryonic antigen (CEA). Gold nanoparticles (Au NPs) grew on the surface of NBT through forming Au-N bond to obtain Au@NBT, and a label-free electrochemical immunosensor was proposed using Au@NBT as an immunosensing recognizer towards CEA. The well-ordered crystal structure of NBT was not changed at all after the modification of Au NPs outside, but significantly improved the conductivity, catalytic activity, and biocompatibility of the Au@NBT-modified electrode. The unique cubic crystal nanostructure of NBT offered a large active area for both Au NP modification and the subsequent immobilization of biomolecules over the electrode surface, triggering the effective generation of promising properties of the proposed Au@NBT-based electrochemical immunosensor. As expected, favorable detection performances were achieved using this immunosensor towards CEA detection, where a good linear relationship between the current response and CEA concentration was obtained in the concentration range 10 fg mL-1 to 100 ng mL-1 with a low detection limit (LOD) of 13.17 fg mL-1. Also, the significantly enhanced selectivity, and stability guaranteed the promising electrochemical properties of this immunosensor. Furthermore, the analysis of real serum samples verified the high feasibility of this new method in clinical CEA detection. This work opens a new window for the application of nanoperovskite in the early detection of CEA.
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Affiliation(s)
- Ruizhuo Ouyang
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Meina Feng
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yuefeng Zhao
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Jinyao Liu
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yuanhui Ma
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Xi Liu
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Baolin Liu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Yuqing Miao
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
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Gao ZW, Li H, Li PH, Li YY, Quan JQ, Ma N, Chen SH, Huang XJ, Song ZY, Yang M. In-situ precipitation zero-valent Co on Co 2VO 4 to activate oxygen vacancies and enhance bimetallic ions redox for efficient detection toward Hg(II). Anal Chim Acta 2024; 1306:342612. [PMID: 38692793 DOI: 10.1016/j.aca.2024.342612] [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: 02/27/2024] [Revised: 03/29/2024] [Accepted: 04/13/2024] [Indexed: 05/03/2024]
Abstract
Despite the widespread utilization of variable valence metals in electrochemistry, it is still a formidable challenge to enhance the valence conversion efficiency to achieve excellent catalytic activity without introducing heterophase elements. Herein, the in-situ precipitation of Co particles on Co2VO4 not only enhanced the concentration of oxygen vacancies (Ov) but also generated a greater number of low-valence metals, thereby enabling efficient reduction towards Hg(II). The electroanalysis results demonstrate that the sensitivity of Co/Co2VO4 towards Hg(II) was measured at an impressive value of 1987.74 μA μM-1 cm-2, significantly surpassing previously reported results. Further research reveals that Ov acted as the main adsorption site to capture Hg(II). The redox reactions of Co2+/Co3+ and V3+/V4+ played a synergistic role in the reduction of Hg(II), accompanied by the continuous supply of electrons from zero-valent Co to expedite the valence cycle. The Co/Co2VO4/GCE presented remarkable selectivity towards Hg(II), with excellent stability, reproducibility, and anti-interference capability. The electrode also exhibited minimal sensitivity fluctuations towards Hg(II) in real water samples, underscoring its practicality for environmental applications. This study elucidates the mechanism underlying the surface redox reaction of metal oxides facilitated by zero-valent metals, providing us with new strategies for further design of efficient and practical sensors.
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Affiliation(s)
- Zhi-Wei Gao
- Institute of Environment, Hefei Comprehensive National Science Center, Hefei, 230088, China; Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China; Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China; State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Hao Li
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China; Wan Jiang New Industry Technology Development Center, Tongling, 244000, China
| | - Pei-Hua Li
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
| | - Yong-Yu Li
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
| | - Jia-Qing Quan
- Wan Jiang New Industry Technology Development Center, Tongling, 244000, China
| | - Na Ma
- Institute of Environment, Hefei Comprehensive National Science Center, Hefei, 230088, China
| | - Shi-Hua Chen
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China; State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China.
| | - Xing-Jiu Huang
- Institute of Environment, Hefei Comprehensive National Science Center, Hefei, 230088, China; Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China; Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
| | - Zong-Yin Song
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China.
| | - Meng Yang
- Institute of Environment, Hefei Comprehensive National Science Center, Hefei, 230088, China; Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China; Wan Jiang New Industry Technology Development Center, Tongling, 244000, China.
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Guo L, Zhao Y, Huang Q, Huang J, Tao Y, Chen J, Li HY, Liu H. Electrochemical protein biosensors for disease marker detection: progress and opportunities. MICROSYSTEMS & NANOENGINEERING 2024; 10:65. [PMID: 38784375 PMCID: PMC11111687 DOI: 10.1038/s41378-024-00700-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/23/2024] [Accepted: 03/08/2024] [Indexed: 05/25/2024]
Abstract
The development of artificial intelligence-enabled medical health care has created both opportunities and challenges for next-generation biosensor technology. Proteins are extensively used as biological macromolecular markers in disease diagnosis and the analysis of therapeutic effects. Electrochemical protein biosensors have achieved desirable specificity by using the specific antibody-antigen binding principle in immunology. However, the active centers of protein biomarkers are surrounded by a peptide matrix, which hinders charge transfer and results in insufficient sensor sensitivity. Therefore, electrode-modified materials and transducer devices have been designed to increase the sensitivity and improve the practical application prospects of electrochemical protein sensors. In this review, we summarize recent reports of electrochemical biosensors for protein biomarker detection. We highlight the latest research on electrochemical protein biosensors for the detection of cancer, viral infectious diseases, inflammation, and other diseases. The corresponding sensitive materials, transducer structures, and detection principles associated with such biosensors are also addressed generally. Finally, we present an outlook on the use of electrochemical protein biosensors for disease marker detection for the next few years.
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Affiliation(s)
- Lanpeng Guo
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Yunong Zhao
- Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education, School of Integrated Circuits, Anhui University, Hefei, 230601 China
| | - Qing Huang
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, Wuhan, 430074 China
- School of Optoelectronic Materials and Technology, Jianghan University, Wuhan, 430056 China
| | - Jing Huang
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Yanbing Tao
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Jianjun Chen
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022 China
| | - Hua-Yao Li
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, Wuhan, 430074 China
- Wenzhou Institute of Advanced Manufacturing Technology, Huazhong University of Science and Technology, Wenzhou, 325000 China
| | - Huan Liu
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, Wuhan, 430074 China
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Pedersen T, Fojan P, Pedersen AKN, Magnusson NE, Gurevich L. Amperometric Biosensor for Quantitative Measurement Using Sandwich Immunoassays. BIOSENSORS 2023; 13:bios13050519. [PMID: 37232880 DOI: 10.3390/bios13050519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023]
Abstract
State-of-the-art clinical detection methods typically involve standard immunoassay methods, requiring specialized equipment and trained personnel. This impedes their use in the Point-of-Care (PoC) environment, where ease of operation, portability, and cost efficiency are prioritized. Small, robust electrochemical biosensors provide a means with which to analyze biomarkers in biological fluids in PoC environments. Optimized sensing surfaces, immobilization strategies, and efficient reporter systems are key to improving biosensor detection systems. The signal transduction and general performance of electrochemical sensors are determined by surface properties that link the sensing element to the biological sample. We analyzed the surface characteristics of screen-printed and thin-film electrodes using scanning electron microscopy and atomic force microscopy. An enzyme-linked immunosorbent assay (ELISA) was adapted for use in an electrochemical sensor. The robustness and reproducibility of the developed electrochemical immunosensor were investigated by detecting Neutrophil Gelatinase-Associated Lipocalin (NGAL) in urine. The sensor showed a detection limit of 1 ng/mL, a linear range of 3.5-80 ng/mL, and a CV% of 8%. The results demonstrate that the developed platform technology is suitable for immunoassay-based sensors on either screen-printed or thin-film gold electrodes.
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Affiliation(s)
- Thor Pedersen
- Department of Materials and Production, Aalborg University, Skjernvej 4A, 9220 Aalborg, Denmark
- Biostrip APS, Lindevangsvej 10, 8240 Risskov, Denmark
| | - Peter Fojan
- Department of Materials and Production, Aalborg University, Skjernvej 4A, 9220 Aalborg, Denmark
| | - Anne Kathrine Nissen Pedersen
- Medical Research Laboratory, Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Palle Juul-Jensens Boulevard 165, 8200 Aarhus, Denmark
| | - Nils E Magnusson
- Biostrip APS, Lindevangsvej 10, 8240 Risskov, Denmark
- Medical Research Laboratory, Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Palle Juul-Jensens Boulevard 165, 8200 Aarhus, Denmark
| | - Leonid Gurevich
- Department of Materials and Production, Aalborg University, Skjernvej 4A, 9220 Aalborg, Denmark
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