应用化学 ›› 2024, Vol. 41 ›› Issue (12): 1760-1769.DOI: 10.19894/j.issn.1000-0518.240055

• 研究论文 • 上一篇    下一篇

稀土荧光探针用于快速检测乙肝表面抗原

张瑞起1, 常宇2, 刘作家2, 李雪松1(), 潘利华2()   

  1. 1.长春工业大学材料科学与工程学院,先进结构材料教育部重点实验室,长春 130012
    2.中国科学院长春应用化学研究所,长春 130022
  • 收稿日期:2024-02-22 接受日期:2024-10-16 出版日期:2024-12-01 发布日期:2025-01-02
  • 通讯作者: 李雪松,潘利华
  • 基金资助:
    新疆维吾尔自治区科技厅重点研发项目(2021B03003);吉林省科技厅重点研发项目(20224094094XY);吉林省自然科学基金面上项目(20230101330JC)

Rare Earth Fluorescent Probes for Rapid Detection of Hepatitis B Surface Antigen

Rui-Qi ZHANG1, Yu CHANG2, Zuo-Jia LIU2, Xue-Song LI1(), Li-Hua PAN2()   

  1. 1.Ministry of Education Key Laboratory of Advanced Structural Materials,College of Materials Science and Engineering,Changchun University of Technology,Changchun 130012,China
    2.Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2024-02-22 Accepted:2024-10-16 Published:2024-12-01 Online:2025-01-02
  • Contact: Xue-Song LI,Li-Hua PAN
  • About author:lihuap@ciac.ac.cn
    lixuesong@ccut.edu.cn
  • Supported by:
    Xinjiang Uygur Autonomous Region Science and Technology Department Key Research and Development Project(2021B03003);Jilin Provincial Science and Technology Department Key Research and Development Project(20224094094XY);Jilin Provincial Natural Science Foundation Upper-level Project(20230101330JC)

摘要:

采用自合成的稀土螯合剂4,4′-双(1″,1″,1″,2″,2″,3″,3″-7氟-4″,6″-己二酮-6″-基)氯磺化三联苯(BHHCT)制备乙肝表面抗体标记物,应用侧流免疫层析试纸条和配套的时间分辨荧光检测系统,建立了一种时间分辨荧光免疫分析对乙肝表面抗原(HBsAg)快速检测的方法。 该方法线性范围为0.2~500 ng/mL,检出限为0.16 ng/mL,线性回归决定系数(R2)为0.9996。 批内变异系数小于5%,批间变异系数小于8%,样品回收率94.3%~107.8%。 该方法操作简便快捷,20 min内获得检测结果,具有精准、快速、特异性强和无需专业人员操作等优势,满足了乙肝表面抗原的即时检测的精准、快速要求。

关键词: 时间分辨荧光免疫分析法, 侧流免疫层析试纸条, 乙肝表面抗原, 即时检测

Abstract:

In this study, a self-synthesized rare-earth chelator 4,4′-Bis(1″,1″,1″,2″,2″,3″,3″-7-fluoro-4″,6″-hexanedione-6″-yl)chlorosulfonated terphenyl (BHHCT) was used to prepare hepatitis B surface antibody markers, and a time-resolved fluorescence immunoassay for the rapid detection of hepatitis B surface antigen (HBsAg) was developed by applying lateral-flow immunochromatographic test strips and an accompanying time-resolved fluorescence detection system. The linear range was 0.2~500 ng/mL, the detection limit was 0.16 ng/mL, and the linear regression coefficient of determination (R2) was 0.9996. The intra-batch coefficient of variation was less than 5%, the inter-batch coefficient of variation was less than 8%, and the recoveries of the samples ranged from 94.3% to 107.8%. The method has the advantages of precision, rapidity, specificity and no need for specialized personnel to operate, which can meet the requirement of immediate detection of hepatitis B surface antigen.

Key words: Time-resolved fluorescence immunoassay, Lateral flow immunochromatography strip, Hepatitis B surface antigen, Point of care testing

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