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Singal S, Yadav A, Sharma K, Sharma M, Sharma RK. An electrochemical impedance aptasensor based on selenomolybdate nanodot/antimonene hybrid for platelet-derived growth factor-BB. J Mater Chem B 2023; 11:1958-1970. [PMID: 36751878 DOI: 10.1039/d2tb02498e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The aim of the present study was to design a unique bioelectrode for the quantitative analysis of a potential cancer biomarker, platelet-derived growth factor-BB (PDGF-BB), which can be used for the early detection of cancer. We report the fabrication of succinic acid-capped selenomolybdate polyoxometalate nanodots, POM (SA), decorated antimonene hybrid film on glassy carbon as a suitable bioelectrode. Antimonene nanosheets, synthesized by the chemical exfoliation of antimony provided a large surface area for the symmetric dispersal of POM (SA) nanodots, resulting in site-specific covalent immobilization of the aptamer, PDGF-BB. A comprehensive electrochemical immunosensing investigation was performed on the electrode for sensing of a target antigen, Ag-PDGF-BB. The sensitivity, selectivity, and reproducibility of the bioelectrode were investigated using a best-fit equivalent circuit model that fitted the impedance response. The bioelectrode showed a linear impedimetric response in a broad range for Ag-PDGF-BB (10 pM to 100 nM in pH 7.4 PB) with a limit of detection of 3.5 pM and sensitivity of 80 Ω cm2 per decade. The response sensitivity of the POM(SA)/antimonene hybrid based bioelectrode toward PDGF-BB was approximately ∼1.8-fold higher than that of the POM(SA) only modified bioelectrode. The dissociation constant of immunoreaction between the aptamer-functionalized bioelectrode and target Ag-PDGF-BB was 76 nM, indicating a high binding affinity between the aptamer PDGF-BB and target Ag-PDGF-BB on the electrode surface.
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Affiliation(s)
- Shobhita Singal
- Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Ashish Yadav
- Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Kajal Sharma
- Dr B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India.
| | - Meenakshi Sharma
- Dr B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India.
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Cheng N, Liu Y, Mukama O, Han X, Huang H, Li S, Zhou P, Lu X, Li Z. A signal-enhanced and sensitive lateral flow aptasensor for the rapid detection of PDGF-BB. RSC Adv 2020; 10:18601-18607. [PMID: 35518307 PMCID: PMC9053969 DOI: 10.1039/d0ra02662j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/07/2020] [Indexed: 01/08/2023] Open
Abstract
Platelet-derived growth factor BB (PDGF-BB) is a potential biomarker of tumor angiogenesis. For the first time, we developed a highly sensitive aptasensor for PDGF-BB with an enhanced test line signal by using two different gold nanoparticles (AuNPs). Herein, we describe a highly sensitive biosensor for PDGF-BB detection that combines biotinylated aptamer on a sample pad and poly thymine-Cy3-AuNP-monoclonal antibody complexes against PDGF-BB immobilized on conjugate pad A. Streptavidin (SA) and rabbit anti-mouse polyclonal antibody were also immobilized in the nitrocellulose membrane at the test and control zones, respectively. When the target PDGF-BB protein was added, it first bound the aptamer, and later the monoclonal antibody to form a biotinylated complex that was captured by SA, resulting in a visual red line on the test zone. In addition, to enhance the sensitivity, another monoclonal antibody against Cy3 was conjugated on AuNP B and immobilized on conjugate pad B to form a AuNPs (A&B)-antibody-(PDGF-BB-Cy3)-aptamer-biotin-SA complex on the test line when a loading buffer was subsequently added. This approach showed a linear response to PDGF-BB from 3 ng mL−1 to 300 ng mL−1 with a limit of detection as low as 1 ng mL−1 obtained in 10 minutes. Our biosensor displayed results through red lines readable by the naked eye. Interestingly, our approach has been successfully applied for real sample verification, proving its applicability for cancer monitoring and diagnosis. Platelet-derived growth factor BB (PDGF-BB) is a potential biomarker of tumor angiogenesis.![]()
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Affiliation(s)
- Na Cheng
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University Changsha China
| | - Yujie Liu
- Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences Guangzhou 510530 China.,School of Basic Medicine, Guizhou Medical University Guizhou China
| | - Omar Mukama
- Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences Guangzhou 510530 China.,Department of Biology, College of Science and Technology, University of Rwanda Avenue de l'armée, P. O. Box: 3900 Kigali Rwanda
| | - Xiaobo Han
- Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences Guangzhou 510530 China
| | - Hualin Huang
- Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences Guangzhou 510530 China
| | - Shuai Li
- Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences Guangzhou 510530 China
| | - Peng Zhou
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University Changsha China
| | - Xuewen Lu
- Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences Guangzhou 510530 China
| | - Zhiyuan Li
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University Changsha China .,Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences Guangzhou 510530 China.,GZMU-GIBH Joint School of Life Sciences, Guangzhou Medical University Guangzhou China
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Xu L, Wen Y, Pandit S, Mokkapati VRSS, Mijakovic I, Li Y, Ding M, Ren S, Li W, Liu G. Graphene-based biosensors for the detection of prostate cancer protein biomarkers: a review. BMC Chem 2019; 13:112. [PMID: 31508598 PMCID: PMC6720397 DOI: 10.1186/s13065-019-0611-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 07/15/2019] [Indexed: 02/07/2023] Open
Abstract
Prostate cancer (PC) is the sixth most common cancer type in the world, which causes approximately 10% of total cancer fatalities. The detection of protein biomarkers in body fluids is the key topic for the diagnosis and prognosis of PC. Highly sensitive screening of PC is the most effective approach for reducing mortality. Thus, there are a growing number of literature that recognizes the importance of new technologies for early diagnosis of PC. Graphene is playing an important role in the biosensor field with remarkable physical, optical, electrochemical and magnetic properties. Many recent studies demonstrated the potential of graphene materials for sensitive detection of protein biomarkers. In this review, the graphene-based biosensors toward PC analysis are mainly discussed in two groups: Firstly, novel biosensor interfaces were constructed through the modification of graphene materials onto sensor surfaces. Secondly, ingenious signal amplification strategies were developed using graphene materials as catalysts or carriers. Graphene-based biosensors have exhibited remarkable performance with high sensitivities, wide detection ranges, and long-term stabilities.
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Affiliation(s)
- Li Xu
- 1Laboratory of Biometrory, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203 People's Republic of China.,2Division of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of Technology, 41126 Gothenburg, Sweden
| | - Yanli Wen
- 1Laboratory of Biometrory, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203 People's Republic of China
| | - Santosh Pandit
- 2Division of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of Technology, 41126 Gothenburg, Sweden
| | - Venkata R S S Mokkapati
- 2Division of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of Technology, 41126 Gothenburg, Sweden
| | - Ivan Mijakovic
- 2Division of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of Technology, 41126 Gothenburg, Sweden.,3The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Yan Li
- 1Laboratory of Biometrory, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203 People's Republic of China
| | - Min Ding
- 1Laboratory of Biometrory, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203 People's Republic of China
| | - Shuzhen Ren
- 1Laboratory of Biometrory, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203 People's Republic of China
| | - Wen Li
- 1Laboratory of Biometrory, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203 People's Republic of China
| | - Gang Liu
- 1Laboratory of Biometrory, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203 People's Republic of China
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Thrombin-linked aptamer assay for detection of platelet derived growth factor BB on magnetic beads in a sandwich format. Talanta 2016; 158:159-164. [PMID: 27343590 DOI: 10.1016/j.talanta.2016.05.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/10/2016] [Accepted: 05/13/2016] [Indexed: 12/17/2022]
Abstract
Here we describe a thrombin-linked aptamer assay (TLAA) for protein by using thrombin as an enzyme label, harnessing enzyme activity of thrombin and aptamer affinity binding. TLAA converts detection of specific target proteins to the detection of thrombin by using a DNA sequence that consists of two aptamers with the first aptamer binding to the specific target protein and the second aptamer binding to thrombin. Through the affinity binding, the thrombin enzyme is labeled on the protein target, and thrombin catalyzes the hydrolysis of small peptide substrate into product, generating signals for quantification. As a proof of principle, we show a sandwich TLAA for platelet derived growth factor BB (PDGF-BB) by using anti-PDGF-BB antibody coated on magnetic beads and an oligonucleotide containing the aptamer for PDGF-BB and the aptamer for thrombin. The binding of PDGF-BB to both the antibody and the aptamer results in labeling the complex with thrombin. We achieved detection of PDGF-BB at 16 pM. This TLAA contributes a new application of thrombin and its aptamer in bioanalysis, and shows potentials in assay developments.
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