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Wu J, Zhang Q, Kang L, Wu X, Li D, Wang Y, Huang Y, Xue J. Detection of carcinoembryonic antigens using a wavy gold-silver alloy nanoplate enhanced surface plasmon resonance imaging biosensor. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4713-4720. [PMID: 36342011 DOI: 10.1039/d2ay01523d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Carcinoembryonic antigen (CEA) is regarded as a promising broad spectrum tumor biomarker for clinical diagnosis, progression, and prognosis. Surface plasmon resonance imaging (SPRi) was considered as one of the powerful tools for immunoassay with advantages of label-free, real-time detection with high-throughput. Herein, wavy gold-silver alloy nanoplates functionalized with anti-CEA antibodies providing high protein loading capacity and high mass are used as signal enhancers for CEA detection through SPRi sandwich assay. The present method exhibits a dynamic range for CEA determination from 0.1 to 312.5 ng mL-1 and a detection limit of 0.55 ng mL-1, well below normal physiological levels. This biosensing approach demonstrates the advantages of wavy gold-silver alloy nanoplates compared to conventional gold nanoparticles as a signal amplifier to enhance the SPRi signal, which is expected to become a new prospect for detection of cancer markers in biomedical research and clinical diagnosis.
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Affiliation(s)
- Jiangling Wu
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
| | - Qiongyuan Zhang
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
| | - Lina Kang
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
| | - Xiaotian Wu
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
| | - Daikun Li
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
| | - Yi Wang
- Chongqing Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Yu Huang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
| | - Jianjiang Xue
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
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Yuan Z, Zhang G, Zheng Y, Ma Y, Zhang H. Tuning the Shape of Gold‐Silver Nanocrystals by Separately Controlling the Metal‐Atom Concentration in a One‐Pot Synthesis. ChemistrySelect 2022. [DOI: 10.1002/slct.202104349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhuangdong Yuan
- School of Chemistry Chemical Engineering and Materials Jining University Qufu Shandong 273155 P. R. China
| | - Gongguo Zhang
- School of Chemistry Chemical Engineering and Materials Jining University Qufu Shandong 273155 P. R. China
| | - Yiqun Zheng
- School of Chemistry Chemical Engineering and Materials Jining University Qufu Shandong 273155 P. R. China
| | - Yanyun Ma
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Haifeng Zhang
- School of Chemistry Chemical Engineering and Materials Jining University Qufu Shandong 273155 P. R. China
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