RGD peptide (GRGDNP) is widely used in biomedical research and tissue engineering due to its ability to promote cell adhesion. It mimics the cell recognition site found in extracellular matrix proteins like fibronectin and vitronectin, making it valuable for coating biomaterial surfaces to enhance biocompatibility. This peptide is commonly incorporated into hydrogels, scaffolds, and medical implants to support cell attachment, spreading, and proliferation, especially for stem cells and endothelial cells. In drug delivery, RGD sequences are used to target integrin receptors overexpressed on tumor cells and activated endothelial cells in angiogenic tissues, enabling selective delivery of therapeutic agents to cancer sites. It is also employed in imaging applications, where RGD-conjugated probes help visualize tumor vasculature and monitor disease progression. Additionally, RGD peptides are used in wound healing materials to accelerate tissue regeneration by encouraging fibroblast and keratinocyte migration. Its role in modulating integrin-mediated signaling also makes it useful in studying cell migration, apoptosis, and signal transduction pathways.