标题： 基于荧光分子转子的聚合物材料用于微流控通道中的局部微粘度成像 显示英文标题

标题： Fluorescent molecular rotor-based polymer materials for local microviscosity mapping in microfluidic channels

摘要： 一种对粘度敏感的单体，由甲基丙烯酸酯功能化的基于朱利奥丁酮的分子转子（MECVJ）组成，被合成并用于获得对粘度敏感的聚合物（poly(DMA-\textit{s}-MECVJ)）。在将分子转子包含在新聚合物中后，其定性特性得以保留，特别是周围介质的粘度对转子荧光寿命的影响。通过将这些聚合物接枝到玻璃载玻片上，获得了对粘度敏感的表面，在多次使用和洗涤后表现出良好的稳定性。作为概念验证，这些表面被用于组装一个微流控芯片，能够映射通道内流动流体的粘度。 显示英文摘要

摘要： A viscosity-sensitive monomer consisting of a methacrylate-functionalized julolidone-based molecular rotor (MECVJ) was synthesized and used to obtain viscosity-sensitive polymers (poly(DMA-\textit{s}-MECVJ)). The qualitative properties of the molecular rotor were preserved after its inclusion in the new polymer, in particular the effect of the viscosity of the surrounding medium on the fluorescence lifetime of the rotor. By grafting these polymers onto glass slides, viscosity-sensitive surfaces were obtained, showing good robustness in time after successive use and washing. As proof of concept, these surfaces were used to assemble a microfluidic chip capable of mapping viscosity of fluids flowing inside the channel.