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Inhibition ratio against Escherichia coli (a) and Staphylococcus aureus (b) induced by different concentrations of CS-based hydrogels, after 16 h. Samples: 1 (CS-g-PNIPAAm with 30.6% CS and 69.4% PNIPAAm), 2 (CS-g-PNIPAAm with 25.3% CS and 74.7% PNIPAAm), 3 (CS-g-PAAm, with 22.7% CS), and 4 (CS-g-PNIPAAm-g-PAAm with 12.9% CS) (adapted from [295]).
