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Absorptive permeation studies of FD4 across rat intestinal mucosa. Effect of uncoated liposomes (△) and liposomes coated with the thiolated chitosans CS-TGA77 (●), CS-TGA150 (■), the S-protected chitosan CS-TGA150-MNA (♦) in comparison with the FD4 control (×). Indicated values are the means ± SD of at least three experiments.
