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Malla P, Liao HP, Liu CH, Wu WC. Electrochemical immunoassay for serum parathyroid hormone using screen-printed carbon electrode and magnetic beads. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Malla P, Chen GC, Liao HP, Liu CH, Wu WC. Label-free parathyroid hormone immunosensor using nanocomposite modified carbon electrode. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Chen GC, Liu CH, Wu WC. Electrochemical immunosensor for serum parathyroid hormone using voltammetric techniques and a portable simulator. Anal Chim Acta 2021; 1143:84-92. [DOI: 10.1016/j.aca.2020.11.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 01/10/2023]
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Yu X, Li X, Zhang S, Jia Y, Xu Z, Li X, Chen Z, Li Y. Ultrasensitive electrochemical detection of neuron-specific enolase based on spiny core-shell Au/Cu xO@CeO 2 nanocubes. Bioelectrochemistry 2020; 138:107693. [PMID: 33291001 DOI: 10.1016/j.bioelechem.2020.107693] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 10/27/2020] [Accepted: 11/01/2020] [Indexed: 02/07/2023]
Abstract
As a specific biomarker, neuron-specific enolase (NSE) is an essential clinical indicator for diagnosing small cell lung cancer. In this paper, a sandwich-type electrochemical immunosensor was designed for the quantitative detection of NSE. AuPt nanoblock spherical nanoarchitectonics (AuPt NSNs), a bimetallic nanoparticle with a rugged morphology, were utilized as the substrate, which could enhance the electronic conduction and increase the immobilization capacity of the primary antibody (Ab1). Moreover, through a simple hydrothermal method, Au/CuxO@CeO2 was prepared as a spiny core-shell nanocube with cerium dioxide (CeO2) and gold nanoparticles (Au NPs) loading. The combination of Cu2O, CuO, and CeO2 showed favorable catalytic activity toward hydrogen peroxide (H2O2). Furthermore, the deposition of Au NPs on the spiny surface structure enhanced the specific surface area and biocompatibility, thereby rendering it more effective for loading the second antibody (Ab2). As the label material, the Au/CuxO@CeO2 achieved signal amplification and sensitive detection with the immunosensor. Under optimal conditions, the designed immunosensor possessed a broad linear range of 50 fg mL-1 to 100 ng mL-1 and a limit of detection of 31.3 fg mL-1, along with satisfactory performance in sensitivity, selectivity, and stability.
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Affiliation(s)
- Xiaodong Yu
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Xinjin Li
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - Shuan Zhang
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Yilei Jia
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Zhen Xu
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Xiangye Li
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Zhiwei Chen
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Yueyun Li
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
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Kaur A, Kapoor S, Bharti A, Rana S, Chaudhary GR, Prabhakar N. Gold‑platinum bimetallic nanoparticles coated 3-(aminopropyl)triethoxysilane (APTES) based electrochemical immunosensor for vitamin D estimation. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114400] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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He Y, Zhou L, Deng L, Feng Z, Cao Z, Yin Y. An electrochemical impedimetric sensing platform based on a peptide aptamer identified by high-throughput molecular docking for sensitive l-arginine detection. Bioelectrochemistry 2020; 137:107634. [PMID: 32882443 DOI: 10.1016/j.bioelechem.2020.107634] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 02/06/2023]
Abstract
As a primary building block for protein synthesis, l-arginine (l-Arg) is also a precursor for the synthesis of important metabolites, and is involved in various physiological and pathophysiological processes. l-Arg is a potential biomarker in clinical diagnosis and nutritional status assessment, making it valuable to quantify and monitor this biomolecule. In this study, peptide aptamers that specifically interact with l-Arg were identified by high-throughput molecular docking, and the binding capacities between the synthesized peptide aptamers and l-Arg were then measured by isothermal titration calorimetry. We hypothesized that the peptide aptamer with the greatest binding capacity could be used as the recognition element in a biosensor. A chemosynthetic peptide aptamer modified with mercaptan and spacer units (thioctic acid-GGGG-FGHIHEGY) was thus used to construct label-free electrochemical impedimetric biosensors for l-Arg based on gold electrodes. The optimum biosensor showed good sensitivity to l-Arg with a linear range of 0.1 pM-0.1 mM, and the calculated limit of detection (three times the signal-to-noise ratio) was 0.01 pM. Interference studies and assays of diluted serum samples were also carried out, and satisfactory results obtained. In conclusion, a potential method of peptide aptamer screening and biosensor fabrication for detecting small biological molecules was demonstrated.
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Affiliation(s)
- Yumin He
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observational and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, Hunan 410125, PR China; Animal Nutrition and Human Health Laboratory, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, PR China
| | - Li Zhou
- Collaborative Innovation Center of Micro/Nano Bio-sensing and Food Safety Inspection, Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, Hunan 410004, PR China
| | - Lei Deng
- School of Computer Science and Engineering, Central South University, Changsha 410075, PR China
| | - Zemeng Feng
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observational and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, Hunan 410125, PR China.
| | - Zhong Cao
- Collaborative Innovation Center of Micro/Nano Bio-sensing and Food Safety Inspection, Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, Hunan 410004, PR China
| | - Yulong Yin
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observational and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, Hunan 410125, PR China; Animal Nutrition and Human Health Laboratory, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, PR China
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Yagati AK, Go A, Vu NH, Lee MH. A MoS2–Au nanoparticle-modified immunosensor for T3 biomarker detection in clinical serum samples. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136065] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Quinchia J, Echeverri D, Cruz-Pacheco AF, Maldonado ME, Orozco J. Electrochemical Biosensors for Determination of Colorectal Tumor Biomarkers. MICROMACHINES 2020; 11:E411. [PMID: 32295170 PMCID: PMC7231317 DOI: 10.3390/mi11040411] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/13/2020] [Accepted: 03/17/2020] [Indexed: 12/15/2022]
Abstract
The accurate determination of specific tumor markers associated with cancer with non-invasive or minimally invasive procedures is the most promising approach to improve the long-term survival of cancer patients and fight against the high incidence and mortality of this disease. Quantification of biomarkers at different stages of the disease can lead to an appropriate and instantaneous therapeutic action. In this context, the determination of biomarkers by electrochemical biosensors is at the forefront of cancer diagnosis research because of their unique features such as their versatility, fast response, accurate quantification, and amenability for multiplexing and miniaturization. In this review, after briefly discussing the relevant aspects and current challenges in the determination of colorectal tumor markers, it will critically summarize the development of electrochemical biosensors to date to this aim, highlighting the enormous potential of these devices to be incorporated into the clinical practice. Finally, it will focus on the remaining challenges and opportunities to bring electrochemical biosensors to the point-of-care testing.
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Affiliation(s)
- Jennifer Quinchia
- Max Planck Tandem Group in Nanobioengineering, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (J.Q.); (D.E.); (A.F.C.-P.)
| | - Danilo Echeverri
- Max Planck Tandem Group in Nanobioengineering, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (J.Q.); (D.E.); (A.F.C.-P.)
| | - Andrés Felipe Cruz-Pacheco
- Max Planck Tandem Group in Nanobioengineering, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (J.Q.); (D.E.); (A.F.C.-P.)
| | - María Elena Maldonado
- Grupo Impacto de los Componentes Alimentarios en la Salud, School of Dietetics and Human Nutrition, University of Antioquia, A.A. 1226, Medellín 050010, Colombia;
| | - Jahir Orozco
- Max Planck Tandem Group in Nanobioengineering, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (J.Q.); (D.E.); (A.F.C.-P.)
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