Modeling the growth processes of polyelectrolyte multilayers using a quartz crystal resonator

Article Abstract:

The layer-by-layer buildup of chitosan/hyaluronan (CH/HA) and poly(L-lysine)/hyaluronan (PLL/HA) multilayers is followed on a quartz crystal resonator (QCR) and it is used for recording surface acoustic impedance. The viscoelastic quantities of the layer material and mode and parameters of the growth process are acquired by fitting a spiral to the obtained data.

Chitin, Adsorption, Viscoelasticity, Mechanical properties

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Weak correlations between local density and dynamic near the glass transition

Article Abstract:

The different dense colloidal suspensions with confocal microscopy is performed to probe the relationship between local structure and dynamics near the glass transition. A purely structural approach based on local single particle volume likely cannot describe the colloidal glass transition.

STONE, CLAY, AND GLASS PRODUCTS, Glass Products, Glass and Glass Product Manufacturing, Glass, Optical properties, Microscope and microscopy, Microscopy

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Probing molecules adsorbed at the surface of nanometer colloidal particles by optical second-harmonic generation

Article Abstract:

The nonlinear Rayleigh-Gans-Debye theory is described and used to probe molecules adsorbed on nanometer size colloidal particles. It is observed that optical second-harmonic generation from molecules adsorbed occurs at angles as large as 90 degree away from the fundamental beam direction.

Science & research, Research, Rayleigh scattering, Nanoparticles, Report

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