Active Release of Microobjects Using a MEMS Microgripper to Overcome Adhesion Forces

Using MEMS mirrors to pattern electrical forces

By switching between two tilt angles MEMS mirrors can be used to produce spatial light patterns. This enables the Digital Micromirror Display (DMD, Texas Instruments) chip to produce the images found in some data projectors. In this paper we will show how these images can be converted into electrical patterns. We use the electrical gradients in these patterns to control the movement of particle...

Microassembly of 3-D MEMS structures utilizing a MEMS microgripper with a robotic manipulator

This paper describes the process of bonding a MEMS (Micro-ElectroMechanical System) microgripper to the distal end of a robotic manipulator arm using a molten solder bonding technique. This task is part of ongoing work which involves the development of a general microassembly workstation. The goal of this workstation is to construct 3-D microstructures from MEMS subcomponents. The microgrippers...

Elastic and viscoelastic characterization of microcapsules for drug delivery using a force-feedback MEMS microgripper.

This paper reports a monolithic, force-feedback MEMS (microelectomechanical systems) microgripper and its application to micro-scale compression testing of swollen hydrogel microcapsules at wet state during manipulation. The single-chip microgripper integrates an electrothermal microactuator and two capacitive force sensors, one for contact detection (force resolution: 38.5 nN) and the other fo...

Measuring Cell Adhesion Using Mems Technology

.....................................................................................3 Adhesion vs. Elasticity...................................................................6 Cell Properties..............................................................................6 Optical Tweezers..........................................................................8 Our Proposed Device...............

A Study on Cell Adhesion by Using Mems Technology