Luminescence Nucleotide/Eu3+ Coordination Polymer Based on the Inclusion of Tetracycline

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• 作者：Hongliang Tan ; Baoxia Liu ; Yang Chen
• 刊名：The Journal of Physical Chemistry C
• 出版年：2012
• 出版时间：January 26, 2012
• 年：2012
• 卷：116
• 期：3
• 页码：2292-2296
• 全文大小：354K
• 年卷期：v.116,no.3(January 26, 2012)
• ISSN：1932-7455

文摘

The metal鈥搊rganic coordination polymer has emerged as a new family of functional nanomaterials. In this work, we prepared a luminescence coordination polymer based on spontaneous self-assembling of nucleotide (AMP) and Eu³⁺ ions in aqueous solution. After antenna ligand tetracycline (Tc) was introduced to the coordination polymer (AMP/Eu), a strong europium luminescence was observed due to the intramolecular energy transfer from tetracycline to Eu³⁺. Because of the hydrophobic environment of the polymer interior, the luminescence intensity of AMP/Eu incorporated tetracycline (AMP/Eu鈥揟c) was 30 times higher than that of AMP/Eu in a solution containing the same amount of tetracycline. AMP/Eu鈥揟c displays a long emission lifetime, excellent dispersion, and stability in aqueous solution. The coordination polymers based on antenna ligands possess great potential in the applications of ultrasensitive time-resolved fluorometric assays and biological imaging.