Department of Chemistry
Impressive europium red emission induced by two-photon excitation for biological applications
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 (σ2: 320 GM) when compared with complex 1 (σ2: 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-f emission in HeLa cells. © 2011 American Chemical Society.
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American Chemical Society
Link to Publisher's Edition
Lo, Wai-Sum, 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, and Wing-Tak Wong. "Impressive europium red emission induced by two-photon excitation for biological applications." Inorganic Chemistry 50.12 (2011): 5309-5311.