🩸 Red Blood Cell Tonicity Lab: Boyle-van 't Hoff, Hemolysis and Permeating Solutes

Blender-modelled red blood cells (biconcave disc, swollen sphere and crenated shape keys) float in a cuvette whose bath you change. Kedem-Katchalsky kinetics with an impermeant salt and a permeating solute give Boyle-van 't Hoff shrinkage, swelling, hemolysis and the osmotic fragility curve; isotonic urea still bursts the cells.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install