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Abstract
Colon specific delivery gained increasing importance for the treatment colonic diseases, such as colorectal cancer, amebiasis, ulcerative colitis and Crohn’s disease. Different strategies are used for targeting drugs to the colon include enzymatically degradable polymers, prodrug based approach, coating with time or pH-dependent polymers, Osmotically controlled and pressure-controlled drug delivery systems. Polysaccharides that are precisely activated by the physiological environment of the colo

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