Silk fibroin is a natural protein derived from the silk produced by silkworms. It is the structural component of silk fibers, known for its strength, durability, and biocompatibility. This protein is primarily composed of amino acids, which contribute to its unique properties, making it suitable for various applications in textiles, medicine, and biotechnology. Due to its excellent mechanical properties and ability to form films and scaffolds, silk fibroin is increasingly used in tissue engineering and drug delivery systems. Its biodegradability and non-toxic nature further enhance its appeal in developing sustainable materials for medical and environmental applications.