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The interaction of hybrid nanoparticles inserted within surfactant bilayers

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Doru Constantin

Editorial: The Journal of Chemical Physics, 133, p.144901, 2010.


We determine by small-angle x-ray scattering the structure factor of hydrophobic particles inserted within lamellar surfactant phases for various particle concentrations. The data are then analyzed by numerically solving the Ornstein-Zernicke equation, taking into account both the intra- and interlayer interactions. We find that particles within the same layer repel each other and that the interaction potential (taken as independent of the concentration) has a contact value of 2.2kBT and a range of about 10 Å. If the amplitude is allowed to decrease with increasing concentration, the contact value in the dilute limit is about 5kBT for a similar range

Cuvinte cheie: Biomembranes, Hydrophobicity, Lipid bilayers, Nanoparticles, Surfactants, X-ray scattering