Peptides are short chains of amino acids linked by peptide bonds that act as signaling molecules and structural components in biological systems. They influence processes such as metabolism, immune response, and tissue repair, and are studied for therapeutic and diagnostic use. Research into peptide function focuses on stability, delivery, and specificity to enhance efficacy and reduce side effects. Delivery strategies include topical, injectable, and oral formats, while studies explore nanoparticle carriers and sequence modifications to improve bioavailability and target selectivity.
