Abstract
A ToF-SIMS imaging technique has been used to obtain dye label-free chemical images of gradient polyethylene (PE) and its amine-functionalized surfaces. The gradient PE surface was prepared by a corona treatment with a power increase along the PE length and confirmed by ToF-SIMS. Amine reagents with varying molecular weights (MW 158, 600, 1200, 10,000 and 60,000) were successively reacted with a gradient PE surface and examined using ToF-SIMS. Our work found that the lower the molecular weight of amine reagent, the more gradient surface of amine surface density was generated. The amine-functionalized gradient surface can be used as a template surface for evaluating bioactive molecules on the gradient surface in just one experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 6754-6756 |
| Number of pages | 3 |
| Journal | Applied Surface Science |
| Volume | 252 |
| Issue number | 19 |
| DOIs | |
| State | Published - 30 Jul 2006 |
Bibliographical note
Funding Information:This work was supported by the R&D Program of Fusion Strategies for Advanced Technologies of MOCIE.
Keywords
- Amine-functionalized
- Gradient polyethylene surface
- Imaging
- ToF-SIMS