METHOD OF CONCENTRATING MACROMOLECULES OR AGGLOMERATES OF MOLECULES OR PARTICLES

摘要

The invention relates to a method for the selective concentration of a macromolecule or an agglomerate of molecules or particles contained in a liquid sample. The inventive method comprises the following steps, namely: the formation of a foam -or emulsion-type stabilised dispersion from a medium comprising the aforementioned liquid sample and an interfacial layer, whereby said interfacial layer can selectively fix the macromolecule or the agglomerate to be concentrated; and the resorption of the dispersion formed during the preceding step so as to reform said interfacial layer. The invention can be used to concentrate DNA, proteins, prions, colloidal particles.