SEARCH Articles Figures Tables 5- -2-carboxymethyl Carboxymethyl-chitin hydrogel Carboxymethyl-chitin-hydroxyapatite Carboxymethylated-chitin Carboxymethylated-chitin Carboxymethylated-chitin chitosan Chitin Chitin carboxymethyl ethers O-carboxymethylated chitins