About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Society for Biomaterials: Biomaterial Applications
|
Presentation Title |
Additive Manufacturing and Characterization of Stimuli-Responsive Biomaterials for Cardiovascular Stents |
Author(s) |
Hamid Ikram, Ans Al Rashid, Muammer Koc |
On-Site Speaker (Planned) |
Muammer Koc |
Abstract Scope |
Current approach used to treat coronary artery spasms involves placement of stents made up of metals and alloys. However, post-surgical complications arise, requiring secondary surgical procedures for stent replacement. Therefore, we propose using innovative polymeric materials for cardiovascular stents to avoid these problems, which can be actuated remotely to adjust lumen space without post-surgical interventions. In addition, advanced manufacturing processes can be used to fabricate complex stent structures rapidly, precisely at lower costs. In this study, novel polymer nanocomposites with polymethyl-metha-acrylate (PMMA) based photosensitive resin as base material and iron oxide (Fe2O3) as stimuli-responsive media are synthesized with varying metallic nanoparticle content. A low-cost 3D printing (3DP) process was used to fabricate structures with synthesized polymer nanocomposite solutions. The 3D-printed structures were analyzed for their sensitivity to magnetic field and stand-off distances at different metallic nanoparticle concentrations using an electromagnetic circuit to generate a magnetic field in a controlled environment. |