Conclusion and future prospects

Lateral flow assays (LFAs) are regarded as a significant technique because of their extensive variety of applications. As discussed in this chapter, they are used in a variety of areas, including clinical diagnostics, environmental surveillance, food safety, hormone balance assessment, cancer biomarker identification, and toxin analysis. Although these tests are renowned for their ability to deliver quick and uncomplicated outcomes, they do have several drawbacks, including limited sensitivity and the need for multiple testing. Advancements in technology have provided substantial breakthroughs to address the constraints of LFAs. Recent advancements in nanoparticles, particularly gold nanoparticles, quantum dots, and magnetic nanoparticles, have greatly enhanced the ability to amplify signals and identify many targets. These nanoparticles enhance the sensitivity of LFAs, facilitating the identification of targets even at low concentrations. Furthermore, LFAs that utilize aptamers have the added benefits of increased stability and reduced costs as compared to systems that rely on antibodies. Aptamers can be readily customized with diverse functional groups, offering versatility in experimental design and optimization. Furthermore, the incorporation of surface-enhanced Raman spectroscopy technology enhances the sensitivity of LFAs, allowing for the detection of substances even at lower concentrations. Consequently, the advancement of technology has enhanced the sensitivity and enhanced the user-friendliness of these tests. © 2026 Elsevier Inc. All rights reserved..