Spatiotemporal Dynamics of Laser-Induced Molecular Crystal Precursors Visualized by Particle Image Diffusometry
Spatiotemporal Dynamics of Laser-Induced Molecular Crystal Precursors Visualized by Particle Image Diffusometry
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DOI：
10.1021/acs.jpclett.9b02571
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发表时间：
2019-12-05
影响因子：
5.7
通讯作者：
Sugiyama, Teruki
中科院分区：
文献类型：
--
作者：
Hanasaki, Itsuo;Okano, Kazuki;Sugiyama, Teruki
我们已经成功地在激光诱导的晶体前体在水溶液中的时空动力学的无标记可视化。通过粒子图像扩散测量法（PID）实现了从显微镜电影数据中对一侧数十微米的观察域的扩散系数场的免跟踪评估。PID揭示了覆盖组成的时间波动与扩散系数的不均匀空间分布的核前集群。此外，结果表明存在核前簇的松散聚集域，其中粘度的顺序与蜂蜜的粘度的顺序相对应。
We have succeeded in label-free visualization of spatiotemporal dynamics of laser-induced crystal precursors in aqueous solutions. The tracking-free evaluation of the diffusion-coefficient field for the observation domain with tens of micrometers on a side from microscopy movie data is realized by particle image diffusometry (PID). PID revealed the time fluctuation of coverage composition with the nonuniform space distribution of diffusion coefficients by the prenucleation clusters. Furthermore, the results indicate the existence of a loose aggregation domain of prenucleation clusters where the order of viscosity corresponds to that of honey.