https://www.biotech-asia.org/vol22no3/carboxymethyl-chitosan-with-high-degree-of-substitution-synthesis-optimization-characterization-and-antibacterial-activity/ An International, Open Access, Peer Reviewed Research Journal Fri, 03 Oct 2025 06:06:21 +0000 hourly 1 https://wordpress.org/?v=6.8.3