| AVS 54th International Symposium | |
| Biomaterial Interfaces | Thursday Sessions |
| Session BI-ThP |
| Session: | Biomaterial Interfaces Poster Session |
| Presenter: | B.P. Andrzejewski, University of New Mexico |
| Authors: | B.P. Andrzejewski, University of New Mexico J. Fenton, University of New Mexico L.K. Ista, University of New Mexico G.P. Lopez, University of New Mexico |
| Correspondent: | Click to Email |
Poly(N-isopropyl acrylamide) (PNIPAAm) is one of the most extensively studied responsive materials exhibiting a thermally triggered molecular transition effecting hydration. Our poster will present work on surface grafted PNIPAAm by the controllable reaction of atom transfer radical polymerization (ATRP). We use ATRP to investigate the effects of polymer length on both thermal responsive and biological adhesion properties. X-ray photoelectron spectroscopy (XPS), contact angle measurements, ellipsometric thicknesses and biological attachment studies will be used to probe thermal responsiveness to the polymer chain length. By precisely varying the polymer length, we give insight into the chemical and physical properties of the surface that govern its thermal responsiveness and resulting cellular adhesive properties.