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Rational Development of Near-Infrared Fluorophores with Large Stokes Shifts, Bright One-Photon, and Two-Photon Emissions for Bioimaging and Biosensing Applications


Zhou L. , Wang Q. , Tan Y. , Lang M.J. , Sun H. , Liu X. . Chem. Eur. J.. 2017 ; 23(). 8736 – 8740


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Molecular engineering of near-infrared dyes: A new class of near-infrared fluorophores is reported that exhibit bright two-photon emissions, due to the resonant enhancement effect in the second absorption band of their two-photon absorption (2PA) spectra. Their Stokes shifts were increased by incorporating substitutes which experience slight rotations upon photoexcitation.

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