Na Liu

TL;DR: A red-emitting dicyanomethylenedihydrofuran push-pull fluorophore is reengineered so that it is dark until photoactivated with a short burst of low-intensity violet light, which provides a new class of bright photoactivatable fluorophores needed for super-resolution imaging schemes that require active control of single molecule emission.

TL;DR: A red-emitting DCDHF fluorophore is reengineered so that it is dark until photoactivated with a short burst of low-intensity violet light, providing a new class of bright photoactivatable small-molecule fluorophores, which are needed for super-resolution imaging schemes that require active control of single-Molecule emission.

TL;DR: It is demonstrated that the azide-to-amine photoactivation process is generally applicable to a variety of push-pull chromophores, and the photophysical parameters including photoconversion quantum yield, photostability, and turn-on ratio are characterized.

TL;DR: Photophysical studies demonstrate that these DCDHF dye materials are strong single-molecule emitters and the total number of detected photons per molecule is among the highest thus far for this family of fluorophores.

TL;DR: In this article, a double-layer alignment film (DLAF) was developed to obtain greater control of the alignment characteristics of the liquid crystal director, which consists of a thin fluorinated polymer layer on the top of a rubbed non-fluorinated, non-branched polyimide layer (PI 2555).