A Micro-Tweezers System for Cell Isolation Task

This paper introduces a simple micromanipulation system with combination of passive-active release strategy for biomedical applications. To begin with a simple manipulation system, it is required to acquire the 3D position information for both end effectors and the interested particles. Successful pick - and - place task of small size micro-objects is invaluable but challenging. The domination of adhesion forces in micromanipulation especially during releasing task has been a common issue. A hybrid passive-active release strategy has been implemented in this system to mainly overcome adhesion forces. The proposed micro-tweezers system is a contact micromanipulation approach that has successfully manipulated silicon microbead (4 - 16 μm) with the aim to manipulate oocysts of parasite (4 - 5 μm).