Tuesday, July 29, 2008

Day 17

Instead of our morning meeting, we toured the color science building today. I'm glad we did because I have to find my way there tomorrow to be a guinea pig in a 'psychophysics' experiment.

So after a half hour of being shown the labs over there, we headed back to Building 76 to see Dr. Hornak.


He was really excited about the data we collected yesterday ( the once-a-minute-for-an-hour- data) because it showed that the mixture of 6mM Copper, .9 mM Gadodiamide (Omniscan the MRI contrast agent) and 18 megaohm water steadily changed absorbance levels for about the first hour. So obviously there is some chemistry changing in the solution that nobody (nobody meaning Dr. Hornak, Nicole, Britt, Jenn, and I) knew about. So Dr. Hornak was pleasantly surprised that it actually did change. So to continue, we did the same experiment again today except for two changes: we took measurements once-a-minute-for-TWO-hours ; and we used the quartz cuevettes(see pic) instead of the disopsable polystyrene cuvetts we have been using all along. Now the quartz cuvettes look just like the plastic ones except they allow for much more accurate results... I have been told they cost about 200$ each. And they come in a cute little box.


So that's about all that happened today... :)