We propose a novel on-chip enucleation of an oocyte with zona pellucida by using a combination of untethered microrobots. To achieve enucleation within the closed space of a microfluidic chip, two microrobots, a microknife and a microgripper were integrated into the microfluidic chip. These microrobots were actuated by an external magnetic force produced by permanent magnets placed on the robot...

This paper presents the mechanical design, analysis, fabrication, and testing procedures of a new large-range microgripper which is based on a flexible hinge structure. The uniqueness of the gripper is that the gripper arms not only provide large gripping range but also deliver approximately rectilinear movement as the displacement in nonworking direction is extremely small. The large gripping ...

This paper deals with an overview of recent microgrippers. As the end-effectors of micromanipulation systems, microgrippers are crucial point of such systems for their efficiency and their reliability. The performances of current microgrippers are presented and offer a stroke extending from 50 m to approximately 2 mm and a maximum forces varying from 0,1 mN to 600 mN. Then, micromanipulation sy...

In this article, we propose laser actuated microjoints which can be remotely in both air and water. Their actuation relies on the optothermal response of a spiral bimaterial. The are fabricated using two-photon polymerization technology that offers ability to tune thermal mechanical properties material by controlling printing power. Modeling is first conducted verify parameters affect rotationa...