Next Article in Journal
Retraction: Abdalla, S., et al. A Bio Polymeric Adhesive Produced by Photo Cross-Linkable Technique. Polymers 2016, 8, 292, doi:10.3390/polym8080292 and Abdalla, S., et al. Controlled Light Cross-Linking Technique to Prepare Healable Materials. Polymers 2017, 9, 241, doi:10.3390/polym9060241
Next Article in Special Issue
Shape Memory Polyurethanes Based on Zwitterionic Hard Segments
Previous Article in Journal
Mechanical Properties of Composite Hydrogels of Alginate and Cellulose Nanofibrils
Previous Article in Special Issue
A New Type of Photo-Thermo Staged-Responsive Shape-Memory Polyurethanes Network
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Polymers 2017, 9(8), 381; https://doi.org/10.3390/polym9080381

Increased X-ray Visualization of Shape Memory Polymer Foams by Chemical Incorporation of Iodine Motifs

1
Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
2
Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
*
Author to whom correspondence should be addressed.
Received: 3 August 2017 / Revised: 18 August 2017 / Accepted: 18 August 2017 / Published: 20 August 2017
(This article belongs to the Special Issue Shape Memory Polymers)
Full-Text   |   PDF [4203 KB, uploaded 20 August 2017]   |  

Abstract

Shape memory polymers can be programmed into a secondary geometry and recovered to their primary geometry with the application of a controlled stimulus. Porous shape memory polymer foam scaffolds that respond to body temperature show particular promise for embolic medical applications. A limitation for the minimally invasive delivery of these materials is an inherent lack of X-ray contrast. In this work, a triiodobenzene containing a monomer was incorporated into a shape memory polymer foam material system to chemically impart X-ray visibility and increase material toughness. Composition and process changes enabled further control over material density and thermomechanical properties. The proposed material system demonstrates a wide range of tailorable functional properties for the design of embolic medical devices, including X-ray visibility, expansion rate, and porosity. Enhanced visualization of these materials can improve the acute performance of medical devices used to treat vascular malformations, and the material porosity provides a healing scaffold for durable occlusion. View Full-Text
Keywords: shape memory polymer; polymer foam; medical device shape memory polymer; polymer foam; medical device
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Nash, L.D.; Browning Monroe, M.B.; Ding, Y.-H.; Ezell, K.P.; Boyle, A.J.; Kadirvel, R.; Kallmes, D.F.; Maitland, D.J. Increased X-ray Visualization of Shape Memory Polymer Foams by Chemical Incorporation of Iodine Motifs. Polymers 2017, 9, 381.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top