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The distribution of different copolymers in intestinal mucus layer.
Notes: The distance interval is 30 μm from A to L in each sub-figure. White scale bars indicate 1,000 μm. Magnification ×40.
Abbreviations: PEMA, poly ethyl methacrylate; PDMAEMA, poly (2-[dimethylamino] ethyl methacrylate); PHEA, poly (2-hydroxyethyl acrylate); PHEMA, poly (2-hydroxyethyl methacrylate); PMAA, poly (methacrylic acid).
