Aggregation-induced emission (AIE) as a unique photophysical process has been intensively explored for their features in fields from optical sensing, bioimaging to optoelectronic devices. However, all AIE luminogens (AIEgens) hardly recover into the initial dispersed state after illuminating at the ultimate aggregated state, which limits AIEgens to achieve reversible sensing and reproducible devices. To real-time manipulate the emission of AIEgen, here we take the advantage of confined space in the quartz nanopore to achieve a nanopore-size-dependent restriction of AIEgens for reversible conversions of “on-to-off” and “off-to-on” emission. By electrochemically manipulating 26 fL AIEgen solution inside nanopore confinement, AIE illuminates while moves along nanopore from the constricted tip to inside cavity at a velocity of 1.4–2.2 μm s−1, and vice versa. We further apply this dynamic manipulation for a target delivery of AIEgen into single cells, which opens up new possibility to design powerful and practical AIE applications.
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机译：聚集诱导发射（AIE）作为一种独特的光物理过程，已经在光学传感，生物成像到光电设备等领域进行了深入研究。但是，所有AIE发光剂（AIEgens）在以最终聚集状态照射后几乎都无法恢复到初始分散状态，这限制了AIEgens能够实现可逆的传感和可再现的设备。为了实时控制AIEgen的发射，在这里我们利用石英纳米孔中有限的空间来实现AIEgens的纳米孔尺寸依赖性限制，以实现“开到关”和“关到关”的可逆转换。发射”。通过电化学操作纳米孔限制区域内的26 fL AIEgen溶液，AIE以1.4–2.2μm s -1 的速度沿着纳米孔从狭窄的尖端移动到内部空腔时照亮，反之亦然。我们进一步将这种动态操作应用于将AIEgen靶向递送到单个细胞中，这为设计功能强大且实用的AIE应用程序开辟了新的可能性。
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