Cell watching: Cationic poly(phenylene ethynylene) (PPE) derivatives are explored for use as Raman probes for living cell imaging due to a synergetic-enhancement effect of alkyne vibrations in Raman-silent regions. The enhanced alkyne signals result from the integration of alkyne groups into the rigid polymer backbone. PPE-based conjugated polymer nanoparticles were also prepared as Raman-responsive nanomaterials for distinct imaging application.

中文翻译：

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共轭聚合物与内在炔烃单元在活细胞中协同增强拉曼成像

细胞观察：由于炔属振动在拉曼沉默区的协同增强作用，阳离子聚（亚苯基乙炔）（PPE）衍生物已被探索用作活细胞成像的拉曼探针。炔烃信号增强的原因是炔烃基团整合到刚性聚合物主链中。还制备了基于PPE的共轭聚合物纳米颗粒作为拉曼响应纳米材料，用于独特的成像应用。