Chinese Journal of Applied Chemistry ›› 2025, Vol. 42 ›› Issue (8): 1057-1069.DOI: 10.19894/j.issn.1000-0518.250259

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Research Progress on the Application of Rare Earth Luminescent Materials in Immunoassay

Bin DAI1, Lin PENG2, Xue-Ning ZHU1, Te WANG3, Sai-Nan YANG1(), Ling-Ling ZHANG3()   

  1. 1.Hunan Environment Biological Polytechnic,Hengyang 421000,China
    2.Hunan Drug Inspection Center,Changsha 410000,China
    3.State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2025-06-28 Accepted:2025-07-08 Published:2025-08-01 Online:2025-08-11
  • Contact: Sai-Nan YANG,Ling-Ling ZHANG
  • About author:zhangll@ciac.ac.cn
    keepmoving9@163.com
  • Supported by:
    Hunan Provincial Natural Science Foundation Project(2023JJ60207)

Abstract:

Rare earth (RE) luminescent materials, leveraging unique optical properties such as long fluorescence lifetimes, large Stokes shifts, and narrow-band emissions, have become pivotal for high-sensitivity immunoassays. Rare earth luminescent materials can be broadly classified into the following categories: 1) organic coordination compound-based rare earth luminescent materials, 2) inorganic matrix-doped rare earth luminescent materials, and 3) upconversion nanoluminescent materials. This article systematically reviews the properties of rare earth elements, the types and principles of luminescent materials. Based on three biometric detection techniques, namely time-resolved fluorescence detection, near-infrared (NIR-Ⅱ) fluorescence detection, and upconversion fluorescence detection, it delves into the applications of rare earth luminescent materials in the field of immunoassay. Finally, it discusses the challenges these materials face in clinical applications and prospects for future development.

Key words: Rare earth luminescent materials, Time-resolved fluorescence, Immunoassay, Biosensors

CLC Number: