These include surface roughness, instability of the meniscus, intermolecular forces, and adsorbed impurities.
These observations immediately indicate that molecular assembly is likely to be specified to some extent by the maximisation of intermolecular ionic interactions.
Currently, the formation of non-enzymic intermolecular triplexes is limited to purine-rich stretches in the targeted duplex.
The refined structure is based on an extensive set of 2581 geometry restraints including 125 intermolecular distances.
Intermolecular forces are involved in the functional structure of the matrix, for example by binding extracellular enzymes and preventing their loss to the surrounding medium.
The exception alluded to above refers to a small number of crosslinks that are intramolecular (rather than intermolecular).
When these motions are frozen out at low temperature, the intermolecular contacts can ' tighten up ' more than the intramolecular ones.
A comparison is made to the dynamics of lubrication equations that include attractive and repulsive intermolecular interactions.
