Drug Delivery System Based on Covalently Bonded Poly[N-Isopropylacrylamide-co-2-Hydroxyethylacrylate]-Based Nanoparticle Networks

The present work is focused on investigating the controlled drug release behavior of Poly [N-isopropylacrylamide-co-2-Hydroxyethylacrylate] (P [NIPAm-HEAc])-based hydrogel. The synthesis process includes the preparation of monodispersed hydrogel nanoparticles containing specific functional groups, followed by cross-linking to neighboring spheres to stabilize the entire network. The color and volume of these crystalline hydrogel networks can reversibly change in response to external stimuli such as temperature, pH, and other environmental conditions. The feasibility of the hydrogel as a controlled release vehicle for 5-fluorouracil is evaluated.