| Issue |
Europhys. Lett.
Volume 52, Number 6, December II 2000
|
|
|---|---|---|
| Page(s) | 712 - 718 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2000-00496-6 | |
| Published online | 01 September 2002 | |
Rigid structure of fractal aggregates of lysozyme
Laboratoire Léon Brillouin, CEA-CNRS CEA/Saclay
91191 Gif-sur-Yvette cedex, France
Received:
5
May
2000
Accepted:
16
October
2000
The aggregation of hen egg-white lysozyme upon salt addition was studied by quasi-elastic light scattering. Our results agree with the fractal structure of the aggregates already reported in the literature. However, we also demonstrate that these aggregates are rigid, since they do not display any fluctuation of internal concentration. Such a rigid internal structure is a key point to reconcile the fractal structure of the aggregates and their colloid-like ordering. Furthermore, this result has to be considered for understanding crystal nucleation.
PACS: 87.50.Gi – Ionizing radiations (ultraviolet, X-rays, γ-rays, ions, electrons, positrons, neutrons, and mesons, etc.) / 61.43.Hv – Fractals; macroscopic aggregates (including diffusion-limited aggregates) / 81.10.-h – Methods of crystal growth; physics of crystal growth
© EDP Sciences, 2000
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