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Proceedings Paper

Optical micromanipulation of synthetic macromolecules
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Paper Abstract

Particles that can be trapped in optical tweezers range in size from tens of nanometres to tens of micrometres. Notably, this size range includes large single molecules. We show experimentally, in agreement with theoretical expectations, that optical tweezers can be used to manipulate single molecules of polyethylene oxide suspended in water. The trapped molecules accumulate without aggregating, so the optical trap offers a method of controlling the concentration of macromolecules in solution. Potential applications are the micromanipulation of nanoparticles, nanoassembly, microchemistry, and the study of biological macromolecules.

Paper Details

Date Published: 11 September 2006
PDF: 8 pages
Proc. SPIE 6326, Optical Trapping and Optical Micromanipulation III, 632619 (11 September 2006); doi: 10.1117/12.680187
Show Author Affiliations
Wolfgang Singer, The Univ. of Queensland (Australia)
Timo A. Nieminen, The Univ. of Queensland (Australia)
Norman R. Heckenberg, The Univ. of Queensland (Australia)
Halina Rubinsztein-Dunlop, The Univ. of Queensland (Australia)

Published in SPIE Proceedings Vol. 6326:
Optical Trapping and Optical Micromanipulation III
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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