2. Waves of molecules
Physicists in the authors' group at Vienna have managed to observe interference using a range of molecules. These include (a) the buckyball carbon-70; (b) the pancake-shaped biomolecule tetraphenylporphyrin (TPP) C44H30N4; and (c) the fluorinated fullerene C60F48. TPP is the first-ever biomolecule to show its wave nature. C60F48 has an atomic mass of 1632 units and currently holds the world record for the most massive and complex molecule to show interference.