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Unconstrained recovery characterization of shape-memory polymer networks for cardiovascular applications.

Publication ,  Journal Article
Yakacki, CM; Shandas, R; Lanning, C; Rech, B; Eckstein, A; Gall, K
Published in: Biomaterials
May 2007

Shape-memory materials have been proposed in biomedical device design due to their ability to facilitate minimally invasive surgery and recover to a predetermined shape in vivo. Use of the shape-memory effect in polymers is proposed for cardiovascular stent interventions to reduce the catheter size for delivery and offer highly controlled and tailored deployment at body temperature. Shape-memory polymer networks were synthesized via photopolymerization of tert-butyl acrylate and poly(ethylene glycol) dimethacrylate to provide precise control over the thermomechanical response of the system. The free recovery response of the polymer stents at body temperature was studied as a function of glass transition temperature (T(g)), crosslink density, geometrical perforation, and deformation temperature, all of which can be independently controlled. Room temperature storage of the stents was shown to be highly dependent on T(g) and crosslink density. The pressurized response of the stents is also demonstrated to depend on crosslink density. This polymer system exhibits a wide range of shape-memory and thermomechanical responses to adapt and meet specific needs of minimally invasive cardiovascular devices.

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Published In

Biomaterials

DOI

EISSN

1878-5905

ISSN

0142-9612

Publication Date

May 2007

Volume

28

Issue

14

Start / End Page

2255 / 2263

Related Subject Headings

  • Temperature
  • Stents
  • Prosthesis Design
  • Polymers
  • Materials Testing
  • Blood Vessel Prosthesis
  • Biomedical Engineering
  • Biocompatible Materials
  • Acrylates
 

Citation

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ICMJE
MLA
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Yakacki, C. M., Shandas, R., Lanning, C., Rech, B., Eckstein, A., & Gall, K. (2007). Unconstrained recovery characterization of shape-memory polymer networks for cardiovascular applications. Biomaterials, 28(14), 2255–2263. https://doi.org/10.1016/j.biomaterials.2007.01.030
Yakacki, Christopher Michael, Robin Shandas, Craig Lanning, Bryan Rech, Alex Eckstein, and Ken Gall. “Unconstrained recovery characterization of shape-memory polymer networks for cardiovascular applications.Biomaterials 28, no. 14 (May 2007): 2255–63. https://doi.org/10.1016/j.biomaterials.2007.01.030.
Yakacki CM, Shandas R, Lanning C, Rech B, Eckstein A, Gall K. Unconstrained recovery characterization of shape-memory polymer networks for cardiovascular applications. Biomaterials. 2007 May;28(14):2255–63.
Yakacki, Christopher Michael, et al. “Unconstrained recovery characterization of shape-memory polymer networks for cardiovascular applications.Biomaterials, vol. 28, no. 14, May 2007, pp. 2255–63. Epmc, doi:10.1016/j.biomaterials.2007.01.030.
Yakacki CM, Shandas R, Lanning C, Rech B, Eckstein A, Gall K. Unconstrained recovery characterization of shape-memory polymer networks for cardiovascular applications. Biomaterials. 2007 May;28(14):2255–2263.
Journal cover image

Published In

Biomaterials

DOI

EISSN

1878-5905

ISSN

0142-9612

Publication Date

May 2007

Volume

28

Issue

14

Start / End Page

2255 / 2263

Related Subject Headings

  • Temperature
  • Stents
  • Prosthesis Design
  • Polymers
  • Materials Testing
  • Blood Vessel Prosthesis
  • Biomedical Engineering
  • Biocompatible Materials
  • Acrylates