Study of thermal stability of β-cyclodextrin/metal complexes in the aspect of their future applications

The interaction of cyclodextrins with transition metal ions, mostly due to the presence of similar complexes in biological systems. Metal polysaccharide chemistry plays a crucial role in crosslinking of many biomolecules, and the formed polysaccharide/metal complexes are promising for pharmaceutical applications, as well as for heavy metal collectors and material for production of various substances i.e. drilling muds. In the study of beta-CD/metal complexes made in order to explain the influence of Co(NO3)(2), Cu(NO3)(2), Ni(NO3)(2), Co(CH3COO)(2), Cu(CH3COO)(2), Mn(CH3COO)(2), Ni(CH3COO)(2), CoCl2, CuCl2, FeCl3, MnCl2, NiCl2, CoSO4, Cr-2(SO4)(3), CuSO4, Fe-2(SO4)(3) and MnSO4 on thermal decomposition of beta-cyclodextrin. The theoretical AM1 (Austin Model 1) studies confirm the experimental results. Moreover the studies show that beta-cyclodextrin can be a convenient model of starch, which may be useful for examination of starch-metal interactions.