Determining the hydrodynamic radii of AOT micelles with silver nanoparticles by means of photon correlation spectroscopy

作者：Bulavchenko A I^*; Popovetskiy P S

来源：Russian Journal of Physical Chemistry, 2012, 86(6): 999-1003.

DOI：10.1134/S0036024412050068

• photon correlation spectroscopy
• nanoparticles
• static light scattering
• electrophoretic concentration

The possibility of determining the sizes of micelles of sodium di(2-ethylhexyl)sulfosuccinate (AOT) with silver nanoparticles in decane against the background of a large excess of empty micelles by means of photon correlation spectroscopy with unimodal analysis of the autocorrelation function is demonstrated. Contributions from all components to the light scattering are estimated by measuring the static (Rayleigh) light scattering and allowing for partial absorption of the laser radiation by silver nanoparticles. Areas of the correct determination of the hydrodynamic radius of the micelles with nanoparticles are determined via unimodal analysis of the autocorrelation function in dependence on the nanoparticle size (10-2 nm) and silver concentration (1-30 mM) at a constant AOT concentration (0.25 mol/L) and aqueous pseudophase content (1 vol %).

• 出版日期2012-6