Lanthanide (Eu3 +, Tb3 +, Gd3 +) hybrid system with functionalized diethylenetriamine pentaacetic acid: coordination bonding assembly, luminescence and MRI contrast agent property

A bridge molecule (abbreviated as DTPA-AM, DTPA-bi(4′-acrylamide)) orignated from the diethylenetriamine pentaacetic acid (DTPA) derivative (DTPAA, diethylene-triaminepentaacetic anhydride) after the modification by acrylamide though its amino group group. Subsequently, the lanthanide (Eu3 +, Tb3 +, Gd3 +) polymer hybrid material systems have been assembled with coordination bonds, which present luminescence for Eu3 +, Tb3 + system and MRI (magnetic resonance imaging) contrast agent property for Gd3 + system, respectively.