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A Photoswitchable Fluorophore for the Real-Time Monitoring of Dynamic Events in Living Organisms

机译:用于实时监测生物体动态事件的光电开关荧光团

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This study reports the synthesis of a photoactivatable fluorophore with optimal photochemical and photophysical properties for the real-time tracking of motion in vivo. The photoactivation mechanism designed into this particular compound permits the conversion of an emissive reactant into an emissive product with resolved fluorescence, under mild illumination conditions that are impossible to replicate with conventional switching schemes based on bleaching. Indeed, the supramolecular delivery of these photoswitchable probes into the cellular blastoderm of Drosophila melanogaster embryos allows the real-time visualization of translocating molecules with no detrimental effects on the developing organisms. Thus, this innovative mechanism for fluorescence photoactivation can evolve into a general chemical tool to monitor dynamic processes in living biological specimens.
机译:这项研究报告了具有最佳光化学和光物理特性的可光活化荧光团的合成,用于实时跟踪体内运动。在这种特殊化合物中设计的光活化机理可以使发光反应物在温和的照明条件下转化为具有分解的荧光的发光产物,而这是传统的基于漂白的转换方案无法复制的。实际上,将这些可光转换探针的超分子递送到果蝇胚胎果蝇的胚盘中允许对易位分子进行实时可视化,而对发育中的生物没有不利影响。因此,这种用于荧光光激活的创新机制可以发展成为监测活生物标本中动态过程的通用化学工具。

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