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Axial Ratio Calculator

Axial Ratio Calculator

The Axial Ratio of Proteins can be estimated from the Perrin Factor (refer to Cantor & Schimmel 1980. Biophysical Chemistry Part II: Techniques for the Study of Biological Structure and Function. Freeman and Co., New York).

An axial ratio calculator based upon the work of Perrin is available from Wyatt Technology.

Alternatively, the SEDNTERP program developed by experts in biophysical characterization (Tom Laue, John Philo, David Hayes) may assist with the analysis of hydrodynamic size, shape, and hydration of proteins.



For essential macromolecular and nanoparticle characterization—The Solution is Light™

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Wyatt Technology is the recognized leader in light scattering instrumentation and software for determining the absolute molar mass, size, charge and interactions of macromolecules and nanoparticles in solution.

Wyatt's line of multi-angle static light scattering products couple to size exclusion chromatography (SEC-MALS), field-flow fractionation (FFF-MALS), and stop-flow composition-gradient systems (CG-MALS). Our dynamic light scattering (DLS) products operate in traditional cuvette as well as on-line and automated, high-throughput modes. We also offer unique instruments for electrophoretic light scattering (MP-PALS), differential refractometry, and differential viscosity.

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