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An Integrated Micron-Resolution Particle Image Velocimeter/Optical Tweezers (μPIVOT) for Microenvironment Investigations

[+] Author Affiliations
James K. Lingwood, Nathalie Nève, Sean S. Kohles, Derek C. Tretheway

Portland State University, Portland, OR

Paper No. IMECE2007-41996, pp. 835-837; 3 pages
  • ASME 2007 International Mechanical Engineering Congress and Exposition
  • Volume 11: Micro and Nano Systems, Parts A and B
  • Seattle, Washington, USA, November 11–15, 2007
  • Conference Sponsors: ASME
  • ISBN: 0-7918-4305-X | eISBN: 0-7918-3812-9
  • Copyright © 2007 by ASME


A novel instrument has been developed (μPIVOT) to manipulate and characterize the mechanical environment in and around microscale objects by integrating two laser-based techniques: micron-resolution particle image velocimetry (μPIV) and optical tweezers (OT). While the μPIVOT enables a new realm of microscale studies, it still maintains the individual capabilities of each optical technique. Ongoing investigations will provide a unique perspective towards understanding microscale phenomena including cell biomechanics, non-Newtonian fluid flow, and single particle or particle-particle hydrodynamics.

Copyright © 2007 by ASME



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