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