Colloidal Interactions in Suspensions of Rods

Keng-hui Lin, John C. Crocker, Ana C. Zeri, and A. G. Yodh
Phys. Rev. Lett. 87, 088301 – Published 1 August 2001; Erratum Phys. Rev. Lett. 87, 269902 (2001)
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Abstract

We report direct measurements of entropic interactions of colloidal spheres in suspensions of rodlike fd bacteriophage. We investigate the influence of sphere size, rod concentration, and ionic strength on these interactions. Although the results compare favorably with a recent calculation, small discrepancies reveal entropic effects due to rod flexibility. At high salt concentrations, the potential turns repulsive as a result of viral adsorption on the spheres and viral bridging between the spheres.

  • Received 13 April 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.088301

©2001 American Physical Society

Erratum

Erratum: Colloidal Interactions in Suspensions of Rods [Phys. Rev. Lett. 87, 088301 (2001)]

Keng-hui Lin, John C. Crocker, Ana C. Zeri, and A. G. Yodh
Phys. Rev. Lett. 87, 269902 (2001)

Authors & Affiliations

Keng-hui Lin, John C. Crocker*, Ana C. Zeri, and A. G. Yodh

  • Department of Physics and Astronomy, University of Pennsylvania, 209 S. 33rd Street, Philadelphia, Pennsylvania 19104-6396

  • *Current address: Department of Applied Physics, Caltech, Mail Code 128-95, Pasadena, California 91125.
  • Current address: Department of Chemistry and Biochemistry, University of California at San Diego, La Jolla, California 92093.

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Vol. 87, Iss. 8 — 20 August 2001

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