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In vitro and in vivo degradation of poly(1,3‐diamino‐2‐hydroxypropane‐ co ‐polyol sebacate) elastomers
Author(s) -
Bettinger Christopher J.,
Bruggeman Joost P.,
Borenstein Jeffrey T.,
Langer Robert
Publication year - 2008
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.32306
Subject(s) - polyol , materials science , polymer , elastomer , degradation (telecommunications) , polymerization , in vivo , hydrolysis , monomer , polymer chemistry , biodegradation , amine gas treating , polymer degradation , chemical engineering , organic chemistry , polyurethane , composite material , chemistry , telecommunications , microbiology and biotechnology , computer science , engineering , biology
Abstract Biomaterials with a wide range of tunable properties are desirable for application‐specific purposes. We have previously developed a class of elastomeric poly(ester amides) based on the amine alcohol 1,3‐diamino‐2‐hydroxypropane termed poly(1,3‐diamino‐2‐hydroxypropane‐ co ‐polyol sebacate) or APS. In this work, we have synthesized and characterized formulations of APS polymers and studied the degradation of these polymers in vitro and in vivo . It was found that the chemical, physical, and mechanical properties of APS polymers could be tuned by adjusting monomer feed ratios and polymerization conditions. The degradation kinetics could also be greatly influenced by altering the formulation of APS polymers. In vivo degradation half‐lives ranged from 6 to ∼100 weeks. Furthermore, the dominant degradation mechanism (i.e. hydrolytic or enzymatic) could be controlled by adjusting the specific formulation of the APS polymer. On the basis of the observed in vitro and in vivo biodegradation phenomena, we also propose that the primary modes of degradation are composition dependent. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res, 2009