|In both cases the fluorescent particles are 2 microns in diameter. The left picture shows particles moving in pure water; the right picture shows particles moving in a concentrated solution of DNA, a viscoelastic solution in other words. The movies are 4 seconds of data, total; you can see a slight jump in the movie when it loops around.|
With these sorts of images, we can do microrheology.
This page is was written by Eric Weeks. If you have questions or comments, email me: erweeks / emory.edu