Used in drug delivery systems due to its biocompatibility and biodegradability. Enhances solubility and stability of conjugated drugs, especially in cancer therapy. Serves as a backbone in polymer-drug conjugates, allowing controlled release and targeted delivery to tumor tissues. Applied in nanomedicine for forming nanoparticles that encapsulate therapeutic agents. Also utilized in tissue engineering as a component of scaffolds to support cell growth. Shows promise in reducing side effects of chemotherapy by improving drug specificity.