Magnetic Driving Flowerlike Soft Platform: Biomimetic Fabrication and External Regulation

被引:110
作者
Gao, Wei [1 ]
Wang, Lanlan [2 ,3 ]
Wang, Xingzhe [1 ]
Liu, Hongzhong [3 ]
机构
[1] Lanzhou Univ, Minist Educ, Key Lab Mech Western Disaster & Environm, Coll Civil Engn & Mech,Key Lab Special Funct Mat, Lanzhou 730000, Peoples R China
[2] Xi An Jiao Tong Univ, Food Equipment Engn & Sci, Xian 710049, Peoples R China
[3] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China
基金
国家教育部博士点专项基金资助; 中国国家自然科学基金;
关键词
magnetic particle-filled composites; stimuli-responsive materials; flexible gripper; biomimetics; magnetic actuation; magneto-elastic coupling; FERROMAGNETIC-PLATES; POLYMER; MICROROBOTS; COMPOSITES; ELASTOMERS; FILMS;
D O I
10.1021/acsami.6b03218
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Nature-inspired actuators that can be driven by various stimuli are an emerging application in mobile microrobotics and microfluidics. In this study, a soft and multiple-environment-adaptive robotic platform with ferromagnetic particles impregnated in silicon-based polymer is adopted to fabricate microrobots for minimally invasive locomotion and control interaction with their environment. As an intelligent structure of platform, the change of its bending, deformation, and flapping displacement is rapid, reversible, and continuously controllable with sweeping and multicycle magnetic actuation. The bending angle of the soft platform (0.2 mm in thickness and 8.5 mm in length) mn be deflected up to almost 90 degrees within 2.7 s. Experiments demonstrated that the flexible platform of human skin-like material in various shapes, that is, flowerlike shapes, can transport a cargo to targeted area in air and a variety of liquids. It indicates excellent magnetic-actuation ability and good controllability. The results may be helpful in developing a magnetic-driven carrying platform, which can be operated like a human finger to manipulate biological objects such as single cells, microbeads, or embryos. Especially, it is likely to be used in harsh chemical and physical circumstances.
引用
收藏
页码:14182 / 14189
页数:8
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