Abstract: | The 23Na NMR quadrupolar relaxation in NaDNA aqueous solutions has been investigated in the presence of
(+) and
(−) arabitol. Quite different results were produced by the enantiomers, i.e. the addition of
(+) arabitol produced a small increase of the 23Na NMR relaxation rates, while in the presence of
(−) arabitol a significant decrease was observed. These findings were analysed and discussed in terms of an effective interaction of
(−) arabitol with DNA. |