Merreta Noorenza Biutty, Ratri Puspita Wardani, Zeno Rizqi Ramadhan, Boram Yun, Achmad Yanuar Maulana, Jongsik Kim, Maulida Zakia
Chitin-based hydrogels have emerged as a versatile and sustainable material with significant potential in biomedical, environmental, and energy applications. Derived from the abundant biopolymer chitin, these hydrogels exhibit exceptional biocompatibility, biodegradability, and tunable physicochemical properties. This review highlights advances in chitin-based hydrogels, focusing on solvent systems, crosslinking strategies, and structural modifications to enhance mechanical strength, swelling, and stimuli responsiveness. Key applications include wound healing, drug delivery, tissue engineering, and environmental remediation, where their high-water retention, enzymatic degradability, and eco-friendly nature are particularly advantageous. Furthermore, innovations such as nanoparticle incorporation and chemical derivatization (e.g., carboxymethylation, hydroxypropylation) have expanded their utility in energy devices and smart sensors. Despite these advances, challenges remain in optimizing the energy efficiency of production methods for industrial scalability. This review provides a comprehensive overview of the current state of chitin-based hydrogels, offering insights into future directions for research and development in this promising field. © 2026 by the authors.
Department of Chemical Engineering, Faculty of Industrial Engineering, Universitas Pembangunan Nasional “Veteran” Yogyakarta, Yogyakarta, 55283, Indonesia; Department of Chemical Engineering, Faculty of Engineering and Science, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya, 60294, Indonesia; School of Chemistry, The University of New South Wales, Sydney, 2052, NSW, Australia; Department of Chemical Engineering, BK21 FOUR Graduate Program, Dong-A University, Busan, 49315, South Korea; Department of Chemistry, Dong-A University, Busan, 49315, South Korea; DAU G-LAMP Project Group, Institute of Natural Science, Dong-A University, Busan, 49315, South Korea; DAU G-LAMP Project Group, Innovation of Center for Atomic Science, Dong-A University, Busan, 49315, South Korea; Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang, 50229, Indonesia
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