NDLI: Bacterial propulsion of chemically patterned micro-cylinders

Content Provider	IEEE Xplore Digital Library
Author	Behkam, B. Sitti, M.
Copyright Year	2008
Description	Author affiliation: Robotic Inst., Carnegie Mellon Univ., Pittsburgh, PA (Sitti, M.) \|\| Fac. of Mech. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA (Behkam, B.)
Abstract	Bacterial actuation is identified as a possible solution to the on-board actuation and powering challenges in mobile micro-robotics, and controlled actuation of microscale objects using various types of bacteria have been previously demonstrated. In this paper spherical-capped cylinders are identified as the optimal platform from the robotics, hydrodynamics, and adhesion stand point. Polymeric sphericalcapped cylinders are microfabricated and tested. To enhance their propulsion efficiency and directionality, a surfactant-based patterning technique is devised to limit the adhesion of bacteria to the flat end of the cylindrical body. The speed of propulsion was observed to be similar in both cases, but patterned micro-cylinders have higher propulsion efficiency since they are traveling at similar speeds using significantly reduced number of bacteria.
Starting Page	753
Ending Page	757
File Size	750816
Page Count	5
File Format	PDF
ISBN	9781424428823
DOI	10.1109/BIOROB.2008.4762892
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computational geometry Microorganisms Adhesives Propulsion Hydrodynamics Robot sensing systems Magnetic fields Mobile robots Chemicals Optical control
Content Type	Text
Resource Type	Article

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