Impressive Europium Red Emission Induced by Two-Photon Excitation for Biological Applications

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• 作者：Wai-Sum Lo ; Wai-Ming Kwok ; Ga-Lai Law ; Chi-Tung Yeung ; Chris Tsz-Leung Chan ; Ho-Lun Yeung ; Hoi-Kuan Kong ; Chi-Hang Chen ; Margaret B. Murphy ; Ka-Leung Wong ; Wing-Tak Wong
• 刊名：Inorganic Chemistry
• 出版年：2011
• 出版时间：June 20, 2011
• 年：2011
• 卷：50
• 期：12
• 页码：5309-5311
• 全文大小：733K
• 年卷期：v.50,no.12(June 20, 2011)
• ISSN：1520-510X

文摘

Three triazine-based europium(III) complexes were synthesized that demonstrated strong two-photon induced europium emission with a high two-photon absorption cross-section. The modified triazine ligand of complex 3 initiated over 100% enhancement of the two-photon absorption cross-section (蟽₂: 320 GM) when compared with complex 1 (蟽₂: 128 GM) in a solution of DMSO. Europium complex 3 is also stable in vitro, and power-dependence curves were obtained in vitro to confirm the two-photon-induced f鈥揻 emission in HeLa cells.