Session Speaker

The Metal Ions Absorption - and Transportation
Syed Ali Akber Sajadi , A.A. Alamolhoda
Iran

The intramolecular interactions in the complex M(Asp) were investigated in this work. It is shown that some metal ions such as Mg and Ca make weaker bonds to Asp than some others like Zn. Zn(Asp) complex undergoes an intramolecular interaction and builds a chelate, which is more stable than the other two. In this work, the following intramolecular equilibrium and concentration independent equilibrium between an open - isomer M(Asp)op and a closed - isomer M(Asp)cl, has to be considered op cl. Their amount is reported in this work. The obtained results demonstrate that for some M(Asp) complexes, the stability constant is largely affected by the affinity of metal ions for amine group. This shows a kind of selectivity of metal ions and their transfer via complex - building with the aspartate. Also all three metal ions complexes could be considered as mineral carriers. These complexes can release the minerals in human body in certain conditions (e.g. pH - range).