A low-stress and low temperature gradient microgripper for biomedical applications

Einas Gaafar, Musaab Zarog, Ieee Senior Member

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Microelectromechanical systems based micro gripper is one of the major focuses for many medical applications such as microsurgery, micro assembling and testing of micro components, and measuring properties of biological cells as well as small-scale tissue manipulation. This paper presents an electrostatically actuated micro gripper. Different materials sets (Si/SiO2 and polysilicon/Si3N4) were investigated to design electrostatic comb drive micro gripper. The main characteristics of the micro gripper were analyzed using a finite element model (ANSYS software). These characteristics include; the maximum displacement of gripper arms, stresses in the micro gripper, the gripping force, and heat generated from joule heating. It is demonstrated that the proposed design will produce negligible increase in temperature and stresses developed during operation because of applying the actuation voltage.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalMicrosystem Technologies
DOIs
Publication statusAccepted/In press - Feb 16 2017

Fingerprint

Grippers
Thermal gradients
temperature gradients
Joule heating
assembling
actuation
microelectromechanical systems
manipulators
electrostatics
computer programs
heat
temperature
electric potential
Medical applications
Polysilicon
MEMS
Electrostatics
Tissue
Testing
Electric potential

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

A low-stress and low temperature gradient microgripper for biomedical applications. / Gaafar, Einas; Zarog, Musaab; Ieee Senior Member.

In: Microsystem Technologies, 16.02.2017, p. 1-8.

Research output: Contribution to journalArticle

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