Advanced Materials

Shape-Memory Polymers: Novel Biodegradable Shape-Memory Elastomers with Drug-Releasing Capabilities (Adv. Mater. 19/2011)

Authors

  • M. Concepcion Serrano,

    1. Biomedical Engineering Department, Northwestern University, Evanston, IL 60208, USA
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  • Luis Carbajal,

    1. Biomedical Engineering Department, Northwestern University, Evanston, IL 60208, USA
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  • Guillermo A. Ameer

    Corresponding author
    1. Biomedical Engineering Department, Northwestern University, Evanston, IL 60208, USA
    2. Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
    3. Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, IL 60611, USA
    4. Division of Vascular Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
    • Biomedical Engineering Department, Northwestern University, Evanston, IL 60208, USA.
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Abstract

Shape-memory poly(diol-co-citrates) are poly-esters with thermosensitive optical and mechanical behaviour. Below their transition temperature (Ttrans) these materials become opaque and hard, whereas above Ttrans they are transparent elastomers. The mechanism for these phenomena includes the formation of reversible physical crosslinks within the covalently cross-linked polymer network, report Guillermo Ameer and co-workers on p. 2211.

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