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Force-controlled automatic microassembly of tissue engineering scaffolds

Zhao, Guoyong, Teo, Chee Leong, Hutmacher, Dietmar W., & Burdet, Etienne (2010) Force-controlled automatic microassembly of tissue engineering scaffolds. Journal of Micromechanics and Microengineering, 20(3).

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Abstract

This paper presents an automated system for 3D assembly of tissue engineering (TE) scaffolds made from biocompatible microscopic building blocks with relatively large fabrication error. It focuses on the pin-into-hole force control developed for this demanding microassembly task. A beam-like gripper with integrated force sensing at a 3 mN resolution with a 500 mN measuring range is designed, and is used to implement an admittance force-controlled insertion using commercial precision stages. Visual-based alignment followed by an insertion is complemented by a haptic exploration strategy using force and position information. The system demonstrates fully automated construction of TE scaffolds with 50 microparts whose dimension error is larger than 5%.

Impact and interest:

5 citations in Scopus
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3 citations in Web of Science®

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ID Code: 33255
Item Type: Journal Article
Keywords: MICROGRIPPER, GRIPPER, FABRICATION, SENSOR, SYSTEM
DOI: 10.1088/0960-1317/20/3/035001
ISSN: 0960-1317
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2010 IOP Science
Deposited On: 27 Jul 2010 08:09
Last Modified: 01 Mar 2012 00:27

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