Luminogenic materials with aggregation-induced emission (AIE) have attracted considerable interest for applications. If these systems aggregate, the free rotation of their scaffold is restricted, and as a consequence the photoluminescence increases. Herein, the first experimental observation of a "dynameric effect" on AIE is described. A comparison is made of the AIE of molecular and dynameric sensors that exhibit non-linear turn-on switching of fluorescence upon their interaction with adenosine triphosphate (ATP). Confirmation was obtained from the enhanced ATP detection with multivalent dynameric networks compared with a molecular sensor. The dynamic, reversible behaviour of the imine linkages is critical to produce this enhancement, as a static, imine-reduced, polymeric sensor showed decreased AIE activity. The dynameric frameworks showed selectivity for ATP over adenosine diphosphate, and adenosine monophosphate over guanosine triphosphate or cytidine triphosphate. Together, these results will accelerate the systematic discovery of efficient adaptive biomimetic sensors.

中文翻译：

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具有聚集诱导发射的用于选择检测三磷酸腺苷的Dynameric框架。

具有聚集诱导发射（AIE）的发光材料已引起了广泛的应用兴趣。如果这些系统聚集，则其支架的自由旋转受到限制，结果光致发光增加。在此，描述了对AIE的“ dynameric效应”的第一个实验观察。比较了分子传感器和dynameric传感器的AIE，它们在与三磷酸腺苷（ATP）相互作用时显示出非线性的荧光开启开关。与分子传感器相比，通过多价dynameric网络增强的ATP检测获得了确认。亚胺键的动态，可逆行为对于产生这种增强至关重要，因为静态的，减少了亚胺的聚合物传感器显示出降低的AIE活性。dynameric框架显示了ATP对二磷酸腺苷的选择性和对腺苷一磷酸对鸟苷三磷酸或胞苷三磷酸的选择性。在一起，这些结果将加速有效的自适应仿生传感器的系统发现。