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首页> 外文期刊>RSC Advances >Quantitative X-ray microscopic analysis of individual thermoresponsive microgel particles in aqueous solution
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Quantitative X-ray microscopic analysis of individual thermoresponsive microgel particles in aqueous solution

机译：水溶液中单个热响应微凝胶颗粒的定量X射线显微镜分析

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High resolution scanning soft X-ray transmission microscopy (STXM) has been employed to investigate individual thermoresponsive microgel particles in aqueous environments. STXM generates 2-dimensional projections with spatial resolutions in the regime of a few 10 s of nm. In the present study we are able to regain a 3D representation of the investigated specimen and observe the deswelling of the microgel particles upon heating, thus offering insight into the thermoresponsive behaviour of individual differently sized particles. We employ a 2-shell model that is able to derive the radial concentration profile of individual microgels particles and thus serves as a complementary method to scattering experiments that average over all particles. Furthermore, we are able to detect the different deswelling behaviour of the particle interior and its interface to the water environment.
机译：已经采用高分辨率扫描软X射线透射显微镜（STXM）来研究水环境中的单个热响应微凝胶颗粒。 STXM在NM的几个10 S的状态下产生具有空间分辨率的二维投影。在本研究中，我们能够重新获得所研究的样本的3D表示，并观察微凝胶颗粒在加热时的粘附，从而提供对各个不同尺寸颗粒的热反应性行为的洞察力。我们使用一个2-shell模型，能够导出单个微凝胶颗粒的径向浓度分布，因此用作散射实验的互补方法，该实验是平均所有颗粒的水平。此外，我们能够检测粒子内部的不同抛光行为及其与水环境的界面。

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