Selective separations and hyrodynamics studies: a new approch using molecularly imprinted nanosphere composite membranes

摘要

A new approach of selectivemembrane-based separation has been developed by coating molecularly imprinted nanoparticles onto the surface of a membrane disc whereby a selective composite membane shhall be realied. The imprints as the surface of a membrane disc whereby a selective composite membrane shall be realized. The imprints at the surface of the nanoparticles are comprable to footprints of specific molecules. These molecules are present during the synthesis of particles and serve as a molecular template, thus imprinting their shape in the forming particle. The selectivity of the nanoparticles was shown in particle suspension using an enantiomeric model template. The permeability and porosity of the nanoparticle layer were determined by experiments for investigation of feasbility under hydrodynamic aspects. The Carmen-Kozeny equation was modified and validated as an applicable theoretical model. The combination of a cost-efficient membrane disc as support for an selective nanoparticle layer can provide an efficient way in purification and sensing processes.