Fig. 1

Timeline of the discovery and research history of nanoparticles. Key discoveries are highlighted. Research on nanoparticles began in the 1960s. Over the last two decades, an increasing number of scientists have devoted themselves to the study of nanoparticles, yielding impressive results in the biomedical field. AuNPs gold nanoparticles, IONs iron oxide nanoparticles, NPs nanoparticles, SLNs solid lipid nanoparticles, CNTs carbon nanotubes, and QDs quantum dots