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Calibration of trap stiffness and viscoelasticity in polymer solutions
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2008 (English)In: Proc SPIE Int Soc Opt Eng, 2008Conference paper (Refereed)
Abstract [en]

We present an experimental demonstration of a method using optical tweezers proposed by Fischer and Berg-Sorensen for measuring viscoelasticity using optical tweezers. It is based on a sinusoidal oscillation of the liquid in combination with force measurements using optical tweezers. We verify the method by applying it to measurements in water, glycerol and polyethylene oxide (PEO).

Place, publisher, year, edition, pages
, Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X ; 7038
Keyword [en]
Optical tweezers, Viscoelasticity, Viscosity, ABS resins, Elasticity, Force measurement, Glycerol, Micromanipulators, Optical instruments, Polyethylene glycols, Polyethylene oxides, Polymer solutions, Polymers, Sinusoidal oscillations, Trap stiffnesses
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URN: urn:nbn:se:kth:diva-154291DOI: 10.1117/12.793577ISI: 000262711000048ScopusID: 2-s2.0-56249096909ISBN: 9780819472588OAI: diva2:757764
Optical Trapping and Optical Micromanipulation V, 10 August 2008 through 13 August 2008, San Diego, CA

QC 20141023

Available from: 2014-10-23 Created: 2014-10-17 Last updated: 2014-10-23Bibliographically approved

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Persson, Martin
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