A magnetic relaxation switching immunosensor for one-step detection of salbutamol based on gold nanoparticle-streptavidin conjugate

摘要

We developed a magnetic relaxation switching immunosensor for the detection of salbutamol using a gold nanoparticles-streptavidin conjugate and magnetic nanoparticles. This immunosensor enables faster detection with enhanced sensitivity compared with enzyme-linked immunosorbent assay, providing a promising platform for rapid sensing of small molecules.