Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Int J Des Nat Ecodyn. 2011 Jun 2;6(2):139-144.

EFFECT OF PARTICLE DIAMETER ON EXCLUSION-ZONE SIZE.

Author information

  • 1Department of Bioengineering, University of Washington, Seattle, WA 98195, USA.

Abstract

Particles and solutes are excluded from the vicinity of hydrophilic surfaces, leaving large microsphere-free regions known as exclusion zones (EZs). Prior work had indicated that EZs could extend to distances of up to several hundred micrometers from the nucleating surface. These observations were made on large, extended surfaces, leaving open the question whether EZ size might depend on the characteristic dimension of the excluding surface. We placed one or few ion-exchange-resin beads whose diameters varied from 15 μm to 300 μm in cuvettes. The beads were suffused with aqueous microsphere suspensions for observing the surfaces' exclusionary behavior. Results showed a direct relation between bead size and EZ size over the full range of bead diameter, implying a similar relation for smaller particles or molecules, perhaps extending beyond the resolution of the light microscope.

PMID:
22389653
[PubMed]
PMCID:
PMC3290337
Free PMC Article

Images from this publication.See all images (6)Free text

Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for PubMed Central
    Loading ...
    Write to the Help Desk