Index to Authors,Volume 6 |
| |
| Authors: | P J Adams M L VanSteenberg S A Lee A Rupprecht |
| |
| Institution: | 1. Department of Physics and Astronomy , University of Toledo , Toledo , OH , 43606 , USA;2. Division of Physical Chemistry Arrhenius Laboratory , University of Stockholm , S-106 91 , Stockholm , SWEDEN |
| |
| Abstract: | Abstract The refractive indices of wet-spun films of CsDNA have been measured for light polarized parallel and perpendicular to the helical axis as a function of relative humidity (RH). These data have been combined with previously published data (Biopolymers 30 (1990) 877–887) for the volume per base pair and water content as a function of RH in order to extract the optical polarizabilities. This work was motivated by the study of Weidlich et al. (Biopolymers 26 (1987) 439–453) who reported a ～35% increase at the A-to-B transition in the parallel and perpendicular polarizabilities of NaDNA. In contrast, a much smaller increase in the polarizabilities of CsDNA is found near the A-to-B transition: ～ 12% for the perpendicular direction and < 4% for the parallel direction. |
| |
| Keywords: | |
|
|
