Acoustically manipulating internal structure of disk-in-sphere endoskeletal droplets.
Acoustically manipulating internal structure of disk-in-sphere endoskeletal droplets.
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DOI：
10.1038/s41467-022-28574-4
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发表时间：
2022-02-21
影响因子：
16.6
通讯作者：
Ding X
中科院分区：
文献类型：
--
作者：
Shakya G;Yang T;Gao Y;Fajrial AK;Li B;Ruzzene M;Borden MA;Ding X
微/纳米粒子的操纵已经通过光学、电磁和声学方法或它们的组合得到了很好的研究和证明。液滴/颗粒的内部结构的操纵很少被探索，并且由于其复杂的性质而仍然具有挑战性。在这里，我们展示了使用声波的内部结构的磁盘在球内骨架液滴的操纵。我们开发了一个模型来研究这一有趣现象背后的物理机制。声学相互作用的理论分析表明，这些组件动态产生的主要和次要的辐射力的平衡。此外，发现盘取向随声学驱动频率而改变，这允许盘取向相对于基板的按需可逆调整。这种动态行为导致内骨骼液滴及其内部结构的独特可逆排列，这可以为新型分层胶体结构和细胞内细胞器或类器官内结构的定向组装提供途径。内骨架液滴是一类复杂的胶体，其包含在液体乳液液滴内浇铸的固体内相。在这里，作者显示了液滴内的固体磁盘的声学操纵，其方向可以外部控制的频率。
Manipulation of micro/nano particles has been well studied and demonstrated by optical, electromagnetic, and acoustic approaches, or their combinations. Manipulation of internal structure of droplet/particle is rarely explored and remains challenging due to its complicated nature. Here we demonstrated the manipulation of internal structure of disk-in-sphere endoskeletal droplets using acoustic wave. We developed a model to investigate the physical mechanisms behind this interesting phenomenon. Theoretical analysis of the acoustic interactions indicated that these assembly dynamics arise from a balance of the primary and secondary radiation forces. Additionally, the disk orientation was found to change with acoustic driving frequency, which allowed on-demand, reversible adjustment of the disk orientations with respect to the substrate. This dynamic behavior leads to unique reversible arrangements of the endoskeletal droplets and their internal architecture, which may provide an avenue for directed assembly of novel hierarchical colloidal architectures and intracellular organelles or intra-organoid structures. Endoskeletal droplets are a class of complex colloids containing a solid internal phase cast within a liquid emulsion droplet. Here, authors show acoustic manipulation of solid disks inside liquid droplets whose orientation can be externally controlled with the frequency.
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DOI：
10.1038/s41578-021-00279-y
发表时间：
2021
期刊：
Nature reviews. Materials
影响因子：
--
作者：
Hofer M;Lutolf MP
通讯作者：
Lutolf MP
DOI：
10.1073/pnas.1413325111
发表时间：
2014-09-09
影响因子：
11.1
作者：
Ding, Xiaoyun;Peng, Zhangli;Huang, Tony Jun
通讯作者：
Huang, Tony Jun
影响因子：
64.8
作者：
Erb, Randall M.;Son, Hui S.;Yellen, Benjamin B.
通讯作者：
Yellen, Benjamin B.
影响因子：
2.4
作者：
Barnkob, Rune;Augustsson, Per;Bruus, Henrik
通讯作者：
Bruus, Henrik
影响因子：
64.8
作者：
ASHKIN, A;SCHUTZE, K;SCHLIWA, M
通讯作者：
SCHLIWA, M