Animation of the kidney dialysis process

This (250K) file will take a long time to load before the animation commences. As soon as you can, take the opportunity to look at the key (2 sections).

Water molecules are not shown in this animation.

VERY LARGE file - 18 frame continuous animation of the kidney dialysis process - showing only urea and other small molecules passing through the dialysis membrane - see if you can spot the join!