Henry M. Jackson Foundation

Henry M. Jackson Foundation for the Military Medicine

Serguei Litvinovitch

Allen Gene Hirsh

Latchezar I Tsonev

Patrick M Mehl

The present invention provides a new analysis based on Differential Spectral Topographic Analysis (DISTA). Using data from the spectral methods known in the art, DISTA is based upon the normalization of the spectra to a fixed topographic space, creating a set of spectral forms, and the summation of the absolute differences in topography between one or more reference spectra and the test spectra taken at different magnitudes of the perturbing parameter. This method allows for a sensitive estimate of the fraction of form A and form B of an entity of interest. This method also allows for the calculation of apparent free energy from the conversion of the entity of interest from a first to a second form where appropriate, and in the alternative, calculation of a fraction of structural changes.

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Gaithersburg, MD, United States of America

Serguei Litvinovitch