Dynamic light scattering measurements

G(S) and G(X) have been estimated by quantifying the effect on molecular size distributions inferred from sedimentation velocity, gel permeation chromatography, and dynamic light-scattering measurements [58]. 

Chastek TQ, lida K, Amis EJ, Fasolka MJ, Beers KL (2008) A microfluidic platform for integrated synthesis and dynamic light scattering measurement of block copolymer micelles. Lab Chip 8 950... 

Electron microscopy, X-ray diffraction, inductively coupled plasma emission spectra, and dynamic light-scattering measurements indicated the presence of multidomain spherical particles, containing Ag20, Y203, CuO,... 

Wu, M.-X., Meyer, C.R., Willeford, K.O. Wedding, R.T. (1990). Regulation of the aggregation state of maize PEPCase evidence from dynamic light-scattering measurements. Archives of Biochemistry and Biophysics 281, 324-9. 

Dynamic Light Scattering Measurements. At sufficiently low scattering angles where only the first term of the static structure factor Pq(KL) in equation (13) is important, we can express the linewidth obtained from polarized dynamic light scattering measurements as (17)... 

It is valuable, if you can check on the final result of your vesicle preparation by doing a dynamic light scattering measurement. This would report on the homogeneity of the preparation and an average vesicle size. 

Static and dynamic light scattering measurements have been undertaken on dilute solutions of poly(3-dodecylthiophene) (PDDT) to evaluate its conformation over a range of temperature and to learn whether a reversible thermochromic effect is associated with any conformational change <1996MM933>. 

LabVIEW Front Panel display of g/function (top) and block diagram (bottom) for a Virtual Instrument (VI) for dynamic light scattering measurements. 

There continues to be extensive interest in latexes and micellar systems. The structure of acrylic latex particles has been investigated by non-radiative energy transfer by labelling the co-monomers with fluorescent acceptor-donor systems. Phase separations could also be measured in this way. Excimer fluorescence has been used to measure the critical micelle temperature in diblock copolymers of polystyrene with ethylene-propylene and the results agree well with dynamic light scattering measurements. Fluorescence anisotropy has been used to measure adsorption isotherms of labelled polymers to silica as well as segmental relaxation processes in solutions of acrylic polymers. In the latter case unusual interactions were indicated between the polymers and chlorinated hydrocarbon solvents. Fluorescence analysis of hydrophobically modifled cellulose have shown the operation of slow dynamic processes while fluorescence... 

This work was supported by the IFF, Kinetic and Catalysis Division. We gratefully ackowledge Dr. D. Frot for dynamic light scattering measurements. 

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