Configurational and dynamic properties of different length superhelical DNAs measured by dynamic light scattering

ABSTRACTSmall angle neutron scattering (SANS) and dynamic light scattering (DLS) measurements were made on near physiological solutions of a bottlebrush shape polyelectrolyte, aggrecan. Aggrecan is a biologically important molecule whose complexes with hyaluronic acid (HA) provide the osmotic resistance of cartilage. We have investigated the effect of complexation of aggrecan with HA on the structure and dynamic properties of aggrecan solutions. SANS reveals that the supramolecular structure of aggrecan assemblies is only marginally affected by the HA. DLS indicates that the dynamic response of the aggrecan-HA complex is slower than that of the corresponding aggrecan solution. However, addition of calcium ions slightly increases the relaxation rate of the autocorrelation function of the aggrecan solution.

Download Full-text

Dynamic Properties of the Transient Network formed by Telechelic Ionomers Studied by Dynamic Light Scattering and Dynamic Mechanical Analysis

Macromolecules ◽

10.1021/ma00129a006 ◽

1995 ◽

Vol 28 (25) ◽

pp. 8504-8510 ◽

Cited By ~ 16

Author(s):

Ragnar Johannsson ◽

Christophe Chassenieux ◽

Dominique Durand ◽

Taco Nicolai ◽

Pierre Vanhoorne ◽

...

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Dynamic Mechanical Analysis ◽

Dynamic Properties ◽

Mechanical Analysis ◽

Dynamic Mechanical ◽

Transient Network ◽

Telechelic Ionomers

Download Full-text

Evaluation of the dynamic properties of polymer latex particles interacting with quartz interface by evanescent wave dynamic light scattering

Colloid & Polymer Science ◽

10.1007/s003960050250 ◽

1998 ◽

Vol 276 (4) ◽

pp. 349-355 ◽

Cited By ~ 10

Author(s):

H. Matsuoka ◽

H. Morikawa ◽

S. Tanimoto ◽

A. Kubota ◽

Y. Naito ◽

...

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Evanescent Wave ◽

Dynamic Properties ◽

Latex Particles ◽

Wave Dynamic ◽

Polymer Latex

Download Full-text

Dynamic Properties of Entangled Wormlike Micelles: Sodium Laurylethersulfate at High Ionic Strength-(II)

Zeitschrift für Physikalische Chemie ◽

10.1524/zpch.2001.215.7.905 ◽

2001 ◽

Vol 215 (7) ◽

Author(s):

S.F. Clancy ◽

J.G. Fuller ◽

T. Scheidt ◽

H.H. Paradies

Keyword(s):

Light Scattering ◽

Ionic Strength ◽

Dynamic Light Scattering ◽

Dynamic Properties ◽

High Ionic Strength ◽

Wormlike Micelles ◽

Dilute Solutions ◽

Volume Fractions ◽

Low Salt ◽

Viscous Behaviour

We report on the viscous behaviour of long and flexible wormlike micelles at volume fractions between Ø = 0.05–0.14 comprised of sodium laurylethersulfate (SLES) in 0.15–0.5 M NaCl equivalent of SLES concentrations between 20–50 mM at temperatures ranging from 25 °C to 45 °C by means of static and dynamic light scattering and rheology, which is an extension of previous experiments on dilute/semi-dilute solutions of SLES micelles at much lower surfactant concentrations in the presence of low salt concentrations (Clancy and Paradies, Z. Phys. Chem.

Download Full-text

Dynamic properties of giant colloidal single crystals. Dynamic light scattering of monodispersed polystyrene spheres (192 nm in diameter) in deionized suspension

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/0927-7757(95)03210-5 ◽

1995 ◽

Vol 103 (1-2) ◽

pp. 47-58 ◽

Cited By ~ 5

Author(s):

Tsuneo Okubo ◽

Kohei Kiriyama ◽

Hitoshi Yamaoka ◽

Norio Nemoto

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Single Crystals ◽

Dynamic Properties ◽

Polystyrene Spheres ◽

Deionized Suspension

Download Full-text

STATIC AND DYNAMIC LIGHT SCATTERING OF DILUTE MAGNETORHEOLGICAL EMULSIONS

International Journal of Modern Physics B ◽

10.1142/s0217979296001501 ◽

1996 ◽

Vol 10 (23n24) ◽

pp. 3057-3065 ◽

Cited By ~ 5

Author(s):

M. HAGENBÜCHLE ◽

P. SHEAFFER ◽

Y. ZHU ◽

J. LIU

Keyword(s):

Magnetic Field ◽

Light Scattering ◽

Dynamic Light Scattering ◽

Structure Formation ◽

Magnetic Dipole Moment ◽

Hard Spheres ◽

Dynamic Properties ◽

Dipole Interaction ◽

Static Light Scattering ◽

Dilute System

The structure formation and dynamics of a dilute, monodisperse ferrofluid emulsion under the influence of an external magnetic field have been investigated using static and dynamic light scattering techniques. In the absence of an external field, the spherical emulsion particles behave as a dilute system of hard spheres where the static light scattering is dominated by the droplet form factor and the dynamic light scattering provides the diffusion coefficient due to their Brownian motion. An applied magnetic field induces a magnetic dipole moment in each droplet. Static light scattering is used to study the time dependence of the structure formation caused by the dipole-dipole interaction as a function of the field strength. The change of the dynamic properties due to chain formation is studied by dynamic light scattering.

Download Full-text