1. Coolio Differential interference contrast image of polymer trilayer film with self- assembled in-plane morphology

2. Owl Collision of two holes caused by dewetting of a thin polymer film on a substrate

3. Polymer Juggler Surprised Dewetting of thin polymer film on a substrate

4. Two Stage Dewetting Two stage dewetting of polymer trilayer film on a substrate

5. Slimy 3D Confocal optical microscope projection of a mature bacterial biofilm

6. Rim Breakup Breakup of rim of growing hole in thin polymer film

7. Hole Growth Growth of hole in freely-standing polystyrene film

8. On the Edge Atomic force micrograph of pattern formation near the edge of a polymer wedge film

9. Criss-Cross Reformation of lateral patterns in freely- standing polymer trilayer film upon cooling of the film 95 o C 75 o C

10. Polymer Dots Self-assembly of dots containing 1 picogram (10 -12 g) of polymer in a freely-standing polymer trilayer film

11. Starry Night Final morphology of dewetted polymer film

12. Dewetting Dewetting of a polymer film on top of another polymer film

13. Polymer Hell Pattern formation observed at the edge of a spincoated polymer film

14. Beautiful Bands In-plane banded structure which self- assembles in a heated polymer trilayer film

15. Volcano Atomic force micrograph of dewetting of top layer of polymer trilayer film

16. Criss-Cross In-plane banded structure which self- assembles in a heated polymer trilayer film and then reforms with a larger period upon cooling

17. The Scream Pattern formation observed near the edge of a spincoated polymer film

18. Velvet Differential interference contrast image of a freely- standing polymer film which wrinkles upon heating

19. Knitting Balls Atomic force microscopy image of a self-assembled array of polymer microspheres

20. Pattern Formation Formation and disappearance of in- plane morphology in freely-standing polymer trilayer film obtained upon heating

21. Double the Fun Two-stage dewetting process which occurs within polymer trilayer films

22. Rainbow Hole growth in central layer of polymer trilayer film

23. Lunar Landing Atomic force microscopy image of final morphology of dewetted polymer trilayer film

24. Here Comes the Sun Growth of a hole in the central layer of a polymer trilayer film

25. PSI Group Contact: Professor John Dutcher www.physics.uoguelph.ca/psi