Colorimetric assay of K-562 cells based on folic acid-conjugated porous bimetallic Pd@Au nanoparticles for point-of-care testing

A novel colorimetric assay was established based on folic acid-conjugated porous Pd@Au nanoparticles possessing peroxidase-like activity as labels for the rapid detection of human chronic myelogenous leukemia cell lines (K-562).