What role do nanoparticles play in targeted imaging?
Nanoparticles can be functionalized with targeting ligands such as antibodies or peptides that bind specifically to disease markers. This targeted approach ensures that imaging agents accumulate predominantly in diseased tissues. For example, iron oxide nanoparticles are used in MRI to target and highlight tumor cells, while liposomes loaded with contrast agents can be directed to specific areas of interest within the body.