Applied Physics A

, Volume 66, Supplement 1, pp S71–S73

Local viscosity probed by photonic force microscopy

  • A. Pralle
  • E.-L. Florin
  • E.H.K. Stelzer
  • J.K.H. Hörber
Regular paper

DOI: 10.1007/s003390051102

Cite this article as:
Pralle, A., Florin, EL., Stelzer, E. et al. Appl Phys A (1998) 66(Suppl 1): S71. doi:10.1007/s003390051102

3

with ±15% precision within 0.4 s. The decrease of the diffusion coefficient due to the partial confinement near a surface is measured continuously over sphere–surface separations from 3 μm down to 200 nm. The increase in viscous drag is found to agree with Brenner’s analytical result [1].

Copyright information

© Springer-Verlag 1998

Authors and Affiliations

  • A. Pralle
    • 1
  • E.-L. Florin
    • 1
  • E.H.K. Stelzer
    • 1
  • J.K.H. Hörber
    • 1
  1. 1.Cell Biophysics Programme, European Molecular Biology Laboratory (EMBL), Meyerhofstr. 1, D-69117 Heidelberg, Germany, (E-mail: lastname@embl-heidelberg.de)DE