Issue 35, 2023

New technologies and reagents in lateral flow assay (LFA) designs for enhancing accuracy and sensitivity

Abstract

Lateral flow assays (LFAs) are a popular method for quick and affordable diagnostic testing because they are easy to use, portable, and user-friendly. However, LFA design has always faced challenges regarding sensitivity, accuracy, and complexity of the operation. By integrating new technologies and reagents, the sensitivity and accuracy of LFAs can be improved while minimizing the complexity and potential for false positives. Surface enhanced Raman spectroscopy (SERS), photoacoustic techniques, fluorescence resonance energy transfer (FRET), and the integration of smartphones and thermal readers can improve LFA accuracy and sensitivity. To ensure reliable and accurate results, careful assay design and validation, appropriate controls, and optimization of assay conditions are necessary. Continued innovation in LFA technology is crucial to improving the reliability and accuracy of rapid diagnostic testing and expanding its applications to various areas, such as food testing, water quality monitoring, and environmental testing.

Graphical abstract: New technologies and reagents in lateral flow assay (LFA) designs for enhancing accuracy and sensitivity

Article information

Article type
Critical Review
Submitted
24 May 2023
Accepted
09 Aug 2023
First published
09 Aug 2023

Anal. Methods, 2023,15, 4351-4376

Author version available

New technologies and reagents in lateral flow assay (LFA) designs for enhancing accuracy and sensitivity

M. K. Dey, M. Iftesum, R. Devireddy and M. R. Gartia, Anal. Methods, 2023, 15, 4351 DOI: 10.1039/D3AY00844D

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