Diffusion in two-dimensional colloid-DNA systems

T. C. Lee, D. R. Pilaski, C. Y. Chou, T. T.M. Vo, M. Robert

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Diffusion in quasi-two-dimensional colloid-DNA systems are studied by enhanced video microscopy and image analysis. The colloidal particles are polystyrene spheres and DNA is linear or circular bacteriophage λ-DNA. Dyed linear DNA molecules in pure linear DNA solutions are tracked by fluorescence microscopy. The diffusivities of the colloidal particles and of the DNA molecules are found to decrease sharply at low DNA concentration; the diffusivities of the colloidal particles in both linear and circular DNA exhibit a change in slope as the DNA concentration increases.

Original languageEnglish
Pages (from-to)431-435
Number of pages5
JournalPhysica A: Statistical Mechanics and its Applications
Issue number3-4
StatePublished - 15 Nov 2003


  • Colloid-DNA systems
  • Diffusion


Dive into the research topics of 'Diffusion in two-dimensional colloid-DNA systems'. Together they form a unique fingerprint.

Cite this