Nanoscale Push-Push Dihydrophenanthrene Derivatives as Novel Fluorophores for Two-Photon-Excited Fluorescence
作者:Lionel Ventelon、Sandrine Charier、Laurent Moreaux、Jerome Mertz、Mireille Blanchard-Desce
DOI:10.1002/1521-3773(20010601)40:11<2098::aid-anie2098>3.0.co;2-0
日期:2001.6.1
Outperforming fluorescein by far, elongated fluorophores (e.g. 1) give rise to large two-photon absorption cross-sections σ2 in the visible-red or NIR region and high quantum fluorescence yields Φ (see figure; GM = 10-50 cm4 s photon-1 ). This opens interesting prospects in the field of two-photon microscopy imaging of cell membranes.