Microfluidic preparation of flexible micro-grippers with precise delivery function

Lab on a Chip
Yu-Hao GengJian-Hong Xu

Abstract

We used microfluidic technology for preparing gas-liquid Janus emulsions; we firstly proposed a one-step preparation method of micro-grippers and then characterized the function of oriented and precise delivery behavior. Because of the enrichment of Fe3O4 nanoparticles, the micro-gripper can reach a speed of 1.5 mm s-1 driven by a magnetic field. The micro-gripper's body is made of a poly(N-isopropylacrylamide) hydrogel, a reversible temperature-responsive polymer. The thermo-sensitivity of hydrogels offers the function of grasping, to closely integrate with the target carried, ensuring the stability of the carrying process. The reversible variation of the hydrogel allows the micro-gripper to be reusable and have a long shelf life.

References

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Citations

May 28, 2019·Scientific Reports·Tae Hyeob KimSeon Jeong Kim
Mar 7, 2020·ACS Applied Materials & Interfaces·Lingling GeRong Guo
Jan 29, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Dan WangBin Dong

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MATLAB

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