Dual-mode lateral flow Immunochromatographic assay with Nanobody-functionalized hollow copper sulfide nanoprobe for Salmonella Typhimurium detection in food.
To overcome the limited sensitivity and matrix tolerance of traditional lateral flow immunoassays (LFIA), we developed a nanobody-based colorimetric-photothermal dual-mode LFIA for detecting Salmonella Typhimurium. Hollow copper sulfide (HCuS) nanoparticles served as dual-signal reporters, leveraging a light-cavity eff...