The cover picture shows nanoparticles being trapped and forming an assembly in a potential well. The trapping potential dynamically evolve with the size increase, leading to new phenomenon. Femtosecond laser trapping dynamics have been summarized for silica, hydrophobically modified silica, and polystyrene nanoparticles in aqueous solution, highlighting their distinct optical trapping dynamics under continuous wave laser. See the Personal Account by J. Chen, W.-Y. Chiang, T. Kudo, A. Usman, and H. Masuhara (DOI:10.1002/tcr.202100005).

中文翻译：

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封面特征：脉冲光力诱导的纳米粒子组装动力学（Chem. Rec. 6/2021）

封面图片显示纳米粒子被捕获并在势阱中形成组件。诱捕势随着尺寸的增加而动态变化，导致新的现象。已经总结了水溶液中二氧化硅、疏水改性二氧化硅和聚苯乙烯纳米粒子的飞秒激光捕获动力学，突出了它们在连续波激光下独特的光学捕获动力学。请参阅 J. Chen, W.-Y 的个人帐户。Chiang、T. Kudo、A. Usman 和 H. Masuhara (DOI:10.1002/tcr.202100005)。