Good morning, Is there someone out there with a porous silicon set-up that would be willing to discuss this with one of my colleagues at UNC, Tina Stacy? She is copied on this note. Thank you, Susan Burkett Alabama Power Foundation Endowed Professor University of Alabama 101 Houser Hall Tuscaloosa, AL 35487-0286 205 348 4378 Sburkett at eng.ua.edu