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Proceedings Paper

Calibration of trap stiffness and viscoelasticity in polymer solutions
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Paper Abstract

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).

Paper Details

Date Published: 29 August 2008
PDF: 7 pages
Proc. SPIE 7038, Optical Trapping and Optical Micromanipulation V, 703823 (29 August 2008); doi: 10.1117/12.793577
Show Author Affiliations
Susan H. Roelofs, The Univ. of Queensland (Australia)
Martha B. Alvarez-Elizondo, Tecnológico de Monterrey (Mexico)
Timo A. Nieminen, The Univ. of Queensland (Australia)
Martin Persson, Kungliga Tekniska Högskolan (Sweden)
Norman Heckenberg, The Univ. of Queensland (Australia)
Halina Rubinsztein-Dunlop, The Univ. of Queensland (Australia)


Published in SPIE Proceedings Vol. 7038:
Optical Trapping and Optical Micromanipulation V
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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