The fully reversible synthesis of noncovalent assemblies which are held tog
ether by directed bonds is called synkinesis. Micellar fibres with a distin
ct stereochemistry and gels are formed by amphiphiles forming strong hydrog
en bonds between chiral head groups. The 3D-crystallization of such molecul
ar assemblies, without dominating repulsive hydration forces, is prevented
by the curvature of the fibres, Curvature might perhaps be directly connect
ed with chirality. Addition of enantiomers often leads to an irreversible d
estruction of gels. Recent developments relating to 'hydrophobic water' in
Angstrom-wide membrane gaps are also shortly discussed.