Nona-arginine is widely used in biomedical research and drug delivery due to its ability to enhance cellular uptake. It is particularly effective in delivering therapeutic molecules, such as drugs, proteins, and nucleic acids, into cells by facilitating penetration through cell membranes. This property makes it valuable in gene therapy, where it helps transport DNA or RNA into target cells for genetic modification. Additionally, nona-arginine is employed in cancer research to deliver anticancer agents directly into tumor cells, improving treatment efficacy. Its role in improving the bioavailability of poorly permeable drugs further highlights its significance in pharmaceutical development.