Diffusion of Single Molecules in Nanochannels

With fluorescence correlation spectroscopy (FCS), the diffusion and concentration of proteins (wheat germ agglutinin) in a nanofluidic system are measured on a single molecule level. By increasing the ionic concentration, the Debye length of the electrical double layer (EDL) decreases altering the strongly enhanced surface interactions of charged proteins in nanochannels. A theoretical model of the transport of charged mole- cules in nanofluidics facilitates the design of future nanochannel applications.


    • LOB-POSTER-2009-011

    Record created on 2009-10-27, modified on 2016-08-08


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