Used in biomedical research for targeting integrin receptors, especially αvβ3, which are overexpressed in tumor blood vessels. Enables imaging of cancer and delivery of therapeutic agents by acting as a homing device. Commonly applied in PET imaging, fluorescence imaging, and targeted drug delivery systems. Also utilized in developing anti-angiogenic therapies and in tissue engineering to promote cell adhesion. Its cyclic structure enhances stability and binding affinity compared to linear peptides.