Affinity‐Switchable Fluorescent Probes for Lateral Flow Detection of Small Reactive Molecules and Enzymatic Activities
Lateral flow assays (LFAs) are powerful diagnostic tools for point‐of‐care testing, but their applications are largely constrained by reliance on antibody‐based capture and nanoparticle signal reporters. Here, we present an affinity‐switchable caged‐biotin fluorescent probe strategy (ASBF‐LFA) that expands the dete...