Peptides are powerful tools in scientific research due to their versatility and specificity. They play critical roles in drug discovery and delivery by acting as carriers, targeting agents, and therapeutic mimics (peptidomimetics), especially in cancer and targeted therapies. In immunology, peptides aid in vaccine development through epitope mapping, antibody production, and immune response studies. Their ability to self-assemble and promote cell growth makes them valuable in biomaterials and tissue engineering. Peptides also facilitate enzyme and protein studies by mimicking binding sites and analyzing interactions. Additional applications include peptide libraries for screening, standards for mass spectrometry, antimicrobial agents for medicine and agriculture, and tools for plant protection.