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Nanoparticle-based immunoassays in the biomedical field.
Dianping Tang1, Yuling Cui, Guonan Chen
1Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Department of Chemistry, Fuzhou University, 350108 Fuzhou, PR China. dianping.tang@fzu.edu.cn
The Analyst
|January 11, 2013
Summary
Biofunctionalized nanoparticles offer sensitive detection of disease biomarkers in clinical immunoassays. Recent advances highlight nanoparticle-based electrochemical, optical, and colorimetric assays for improved diagnostics.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Analytical Chemistry
Background:
- Biofunctionalized nanoparticles are being developed for advanced clinical immunoassays.
- Controlling nanoparticle properties is crucial for predictable assay performance.
- Nanoparticle-based assays offer significant signal enhancement for biomarker detection.
Purpose of the Study:
- To review recent advances (last 3 years) in nanoparticle-based immunoassays.
- To highlight novel concepts and promising applications in clinical diagnostics.
- To provide insights into future developments in the field.
Main Methods:
- Review of nanoparticle-based electrochemical assays.
- Review of nanoparticle-based optical assays.
- Review of nanoparticle-based mass-sensitive, colorimetric, and immunodipstick assays.
Main Results:
- Nanoparticles enable enormous signal enhancement in immunoassays.
- Nanoparticle-antibody-antigen assemblies facilitate sensitive biomarker detection.
- Selected examples illustrate novel concepts and promising applications.
Conclusions:
- Nanoparticle-based immunoassays show great promise for sensitive disease detection.
- Continued innovation in nanoparticle design and assay formats is expected.
- Future developments may further enhance diagnostic capabilities in the biomedical field.
