Poly-DL-alanine is widely used in biomedical research due to its ability to mimic natural peptides and proteins. It serves as a model compound in studies of protein folding, stability, and aggregation, helping researchers understand fundamental biochemical processes. Additionally, it is utilized in the development of drug delivery systems, where its biocompatibility and structural properties make it suitable for encapsulating and releasing therapeutic agents. In tissue engineering, poly-DL-alanine is employed to create scaffolds that support cell growth and regeneration. Its synthetic nature allows for precise control over its properties, making it a versatile tool in both scientific and medical applications.