Journal ArticleDOI
On the response of viscoelastic biodegradable polymeric solids
TLDR
The coupling between the response of the biodegradable stent and the arterial wall is examined in order to support the design of biodesgradable polymeric stents by considering reasonably realistic geometrical and material models.About:
This article is published in Mechanics Research Communications.The article was published on 2012-01-01. It has received 6 citations till now. The article focuses on the topics: Biodegradable polymer.read more
Citations
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A phenomenological constitutive model for the nonlinear viscoelastic responses of biodegradable polymers
Kamran A. Khan,Tamer El-Sayed +1 more
TL;DR: In this paper, a constitutive framework for biodegradable polymers is proposed to account for nonlinear viscous behavior under regimes with large deformation, where the generalized Maxwell model is used to represent the degraded viscoelastic response of a polymer.
Journal ArticleDOI
The anisotropic mechanical behaviour of electro-spun biodegradable polymer scaffolds: Experimental characterisation and constitutive formulation
TL;DR: The six-parameter constitutive formulation proved versatile enough to capture the varying non-linear transversely isotropic behaviour of the fibrous scaffold throughout various stages of degradation.
Journal ArticleDOI
Influence of temperature on viscoelastic–viscoplastic behavior of poly(lactic acid) under loading–unloading
TL;DR: In this paper, a model for the time-dependent response of poly(lactic acid) (PLA) in tensile loading-unloading tests and relaxation tests under stretching and retraction at temperatures ranging from room temperature up to 50°C.
Journal ArticleDOI
A study on an incompressible polymeric pressurized vessel subjected to bulk degradation
TL;DR: In this article, two solution frameworks are introduced to study the mechanical behavior of an incompressible polymeric degradable vessel subjected to the neo-Hookean constitutive model.
References
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Journal ArticleDOI
Initial and 6-Month Results of Biodegradable Poly-l-Lactic Acid Coronary Stents in Humans
Hideo Tamai,Keiji Igaki,Eisho Kyo,Kunihiko Kosuga,Akiyoshi Kawashima,Shigeo Matsui,Hidenori Komori,Takafumi Tsuji,Seiichiro Motohara,Hiromu Uehata +9 more
TL;DR: The preliminary experience suggests that coronary PLLA biodegradable stents are feasible, safe, and effective in humans, and Long-term follow-up with more patients will be required to validate the long-term efficacy of PLLa stents.
Journal Article
Polymer degradation and erosion : mechanisms and applications
TL;DR: In this paper, a review examines the nonenzymatic degradation and erosion processes of pharmaceutically relevant degradable polymers and the possibility to adjust these parameters to control degradation and degradation is examined.
Journal ArticleDOI
Evaluation of poly(L-lactic acid) as a material for intravascular polymeric stents.
TL;DR: Poly(L-lactic acid) (PLLA) monofilaments were evaluated for use as intravascular polymeric stents and their mechanical properties characterized.
Journal ArticleDOI
A unified mathematical model for the prediction of controlled release from surface and bulk eroding polymer matrices
TL;DR: A unified model has been developed to predict release not only from bulk eroding and surface eroding systems but also from matrices that transition fromsurface eroding to bulk erodes behavior during the course of degradation, allowing for design controlled release formulations that produce a broad array of custom release profiles.
Journal ArticleDOI
Stress Assisted Diffusion in Elastic and Viscoelastic Materials.
TL;DR: In this article, the governing field equations and boundary conditions for stress assisted diffusion are derived from basic principles of continuum mechanics and irreversible thermodynamics, with emphasis on elastic and viscoelastic material response.