Structural investigation of complexes formed by DNA+CTAB and DNA+DDAB and Designing a method to increase salt ions between DNA and the Surfactant rods.
محورهای موضوعی : Journal of Physical & Theoretical ChemistryE. Moniri 1 , F. Gharib 2 , M. Monajjemi 3 , K. Zare 4
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کلید واژه: DNA, X-ray, Complex, Salt,
چکیده مقاله :
The internal structure of DNA-CTAB and DNA-DDAB is investigated by a Small Angel X- ray Scattering(SAXS) instrument. Hexagonal packing of DNA was observed for DNA complex with CTAB, and for DDABcomplex is observed lamellar structure. Variations in the internal spacing and degree of long-range ordering aredependent on both surfactant type and concentrations of added salt. When we increased the amount of salt intoour complex we observed that the d spacing (d= 211/q) are increased.
