COLL 350 |
| Buddy D. Ratner, University of Washington Engineered Biomaterials, University of Washington, Bagley Hall 484, Box 351720, Seattle, WA 98195 and Dan Graham, University of Washington Engineered Biomaterials and Department of Bioengineering, University of Washington, Box 351720, Seattle, WA 98195-1720. |
| Since their discovery, self-assembled monolayers have become a standard platform for creating controlled model surfaces, surface engineering, and new technological discovery. Their potential perfection as two dimensional crystals coupled with chemical versatility and molecular smoothness suggest that they will be valuable for calibrating surface analysis equipment and testing surface analytical models. Thus, much effort has gone into the characterization of SAMs using a variety of surface analytical techniques. SAMs have helped in the development and optimization of some of these techniques. TOF-SIMS, for example produces a complex spectrum with potentially hundreds of peaks. Using SAMs as a model system, we have been able to investigate the effects of surface order, chain length, and chemistry on the TOF-SIMS fragmentation pattern. This approach has provided insight into the affect of individual surface variables on the generation of secondary ions and has aided in extracting useful information from these complex surface spectra. At the same time, new insights have been gained from SIMS data on SAM structure and formation. This talk will focus on what SAMs have taught us about surface analysis and what surface analysis has taught us about SAMs. |
|
Adamson Award Symposium Honoring Dave Allara and Ralph Nuzzo
Division of Colloid and Surface Chemistry |