Transportation of Nano/Microparticles via Photoinduced Crawling of Azobenzene Crystals
Transportation of Nano/Microparticles via Photoinduced Crawling of Azobenzene Crystals
复制标题
DOI：
10.1002/admi.202202525
复制
发表时间：
2023-04
影响因子：
5.4
通讯作者：
Koichiro Saito;K. Ichiyanagi;S. Nozawa;R. Haruki;Dongxiao Fan;Tomoki Kanazawa;Y. Norikane
中科院分区：
文献类型：
--
作者：
Koichiro Saito;K. Ichiyanagi;S. Nozawa;R. Haruki;Dongxiao Fan;Tomoki Kanazawa;Y. Norikane
微尺度物体在固体表面上的激励驱动运动是实现微液滴操纵的一种很有前途的方法，在材料积累和微尺度传感等领域有着广泛的应用。光是物体操纵的有效外部刺激，因为它可以提供无接触的空间和时间控制。在这项研究中，设计了一种新的方法来传输纳米/微米材料在玻璃表面上利用光诱导爬行运动的晶体。4-（甲基氨基）偶氮苯（4-MAAB）晶体用于通过来自单个可见光源的光照射来传输纳米/微米材料，而不使用昂贵的设备，如激光器和定位装置。与4-MAAB晶体混合的纳米/微米材料成功地与爬行的4-MAAB晶体一起传输。使用嵌入4-MAAB晶体中的纳米/微米材料的荧光跟踪纳米/微米材料的运输。还进行了原位时间分辨X射线衍射测量以进行机理分析。这项研究为微流体和微机器人等领域提供了新的发展途径。
The stimulus‐driven motion of microscale objects on solid surfaces is a promising process to realize the manipulation of microdroplets, which has applications in fields areas such as material accumulation and sensing at a micro level. Light is an effective external stimulus for object manipulation because it can provide contactless spatial and temporal control. In this study, a new method is devised to transport nano/micromaterials on a glass surface by exploiting the photoinduced crawling motion of crystals. 4‐(methylamino)azobenzene (4‐MAAB) crystals are used to transport nano/micromaterials via photoirradiation from a single visible‐light source without using expensive equipment such as lasers and positioning devices. Nano/micromaterials mixed with the 4‐MAAB crystals are successfully transported with the crawling 4‐MAAB crystals. The nano/micromaterial transport is tracked using the fluorescence from the nano/micromaterials embedded into the 4‐MAAB crystals. In situ time‐resolved X‐ray diffraction measurements are also conducted for mechanistic analysis. This study offers new development paths in fields such as microfluidics and microrobotics.