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. Author manuscript; available in PMC: 2008 Feb 1.
Published in final edited form as: Biomaterials. 2006 Nov 15;28(6):975–983. doi: 10.1016/j.biomaterials.2006.10.02

Fig. 1.

Fig. 1

Chemical structure of polymers. Regarding the cellulose derivatives: for CMC-CHO: R is H or CH2COOH. For HPMC-CHO: R is H or (CH2CH(CH3)O)nH. For MC-CHO: R is H or CH3.