On-chip dual arm microrobot for cell manipulations by magnetically driven microtools

This paper presents the innovative driving method of on-chip dual arm microrobots to achieve precise cell manipulations. The positioning accuracy in the new driving method improves 5 times higher and the response speed becomes 10 times quicker against the driving stage than in the conventional method. Commercially available permanent magnets are used to actuate the microrobots owing to the considerably stronger magnetic fields than electromagnetic coil to enforce the high power output. A swine oocyte, which is relatively large cell and require stronger force amount to manipulate, have been precisely handled and cut in microfluidic chip.