Popis: |
Quasi-elastic light scattering (QELS) is a rapid, non-invasive technique for the measurement of macromolecular hydrodynamic radii and size distribution (polydispersity).1,2 This method has recently been applied to the study of the self-assembly of supramolecular structures. 3,4,5 Its usefulness in studying such heterogeneous systems is based on: (a) the capacity to probe the system at equilibrium in a non-perturbative manner; (b) a very high sensitivity to the appearance of polymeric forms in the presence of high concentrations of monomer; (c) the ability to obtain quantitative data without prior physical separation of the components. |