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Non-equilibrium behavior of sticky colloidal particles: beads, clusters and gels
H. Sedgwick1, K. Kroy1,2, A. Salonen1, M. B. Robertson1, S. U. Egelhaaf1 and W. C.K. Poon1*
School of Physics, The University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ, Scotland, UK
2 Hahn-Meitner-Institut Berlin, Glienicker Str. 100, 14109, Berlin, Germany
* e-mail: firstname.lastname@example.org
Published online: 31 January 2005
To understand the non-equilibrium behavior of colloidal particles with short-range attraction, we studied salt-induced aggregation of lysozyme. Optical microscopy revealed four regimes: bicontinuous texture, ‘beads’, large aggregates, and transient gelation. The interaction of a metastable liquid-liquid binodal and an ergodic to non-ergodic transition boundary inside the equilibrium crystallization region can explain our findings.
© EDP Sciences/Società Italiana di Fisica/Springer-Verlag, 2005