Nitrogen on amino group acts as an electron carrier with metal ion. It can absorb the metal ion. Although bond is created between the metal ion and hydro silicone breast ลอิสระ of molecules in the master San.
On the amino nitrogen acts as an electron donor to the metal ion. Metal ions can absorb it. Despite the bonding between the metal ions and among Hydroxyl free molecules of chitosan.
Nitrogen on the amino group acts as the electron and ion of the metal. It can absorb the metal ion. Despite the bond between the metal ion and the free hydroxyl in molecules of Chitosan