Differential light scattering

Vector scattering theories describe the differential light scatter dl as... 

Wyatt, P. J. (1969). Identification of bacteria by differential light scattering. Nature 221, 1257-1258. 

Bartholdi, M., G. C. Salzman, R. D. Hiebert, and M. Kerker, 1980. Differential light scattering photometer for rapid analysis of single particles in flow, Appl. Opt., 19, 1573-1581. 

Wyatt, P. J., 1968. Differential light scattering a physical method for identifying living bacterial cells, Appl. Opt., 7, 1879-1896. 

Dubin SB. Determination of lamellar body size, number density, and concentration by differential light scattering from amniotic fluid physical significance of Afiso. Clin Chem 1988 34 938-43. 

The three terms in equation 67 can be considered individually. The first term is the differential absorption flattening term, the second the differential absorption obscuring term and the third the differential light scattering term. 

Considering the case where differential light scattering is zero, i.e., the... 

The contribution to the suspension ellipticity due to differential light scattering, A[0]ds> can be stated as... 

The calculated value for equation 73 is plotted as curve b in Figure 42, where the shape of the ORD curve is seen to parallel it very closely. This component of differential light scattering does not include the effects of the mixed term, i.e., the absorption obscuring term. When this is included the value A[0] (curve c of Figure 42) is obtained [112]... 

This value of [0]ci is an underestimate of about 10-30%. When a molecularly dispersed state is found which obeys both equations 84 and 86, then it is called the pseudoreference state (prs) and its absorption curve is to be used to calculate the values of Ga and Q for the corrected ellipticity curve. This is sufficient to provide reasonable estimates of the mean residue ellipticities at 224 and 190 nm. Since these are the important values for estimating the amount of a-helix, the result is sufficient. The differential light scattering term, however, can be estimated by using the ORD curve of the pseudoreference state as outlined in equations 81 and 82. This is more of a cosmetic effect to see that the entire curve generally conforms to the a-helix pattern implied by the mean residue ellipticities at 224 and 190nm using equation 44. 

Barthel, H., Sacliweh, B., Ebert, F., Measurement of Airborne Mineral Fibres Using a New Differential Light Scattering Device, Meas. Sci. TechnoL, 1998, 9, 206-216. 

The differential light scattering of anisotropic metal nanoparticles probes has been already exploited in the development of many biodiagnostic applications [9, 10]. The anisotropic growth of metal nanoparticles is attributed to one of the following mechanisms [11] ... 

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