Document Type
Article
Publication Date
6-1-2003
Publication Title
Journal of Colloid and Interface Science
Abstract
A space-borne optical tweezer apparatus for use with colloidal crystallization experiments has been characterized. The trapping force has been measured as a function of index mismatch between colloidal microspheres and the surrounding fluid and as a function of particle size. This work also presents a method to determine the refractive index of a colloidal microsphere, which is then used to calculate the applied trapping force for the case of an arbitrary background fluid. This is useful for work with dense colloidal suspensions when the usual (e.g., Stokes flow) trap force measurement methods do not apply, as well as microrheological studies of complex soft matter.
Repository Citation
Resnick, Andrew, "Use of Optical Tweezers for Colloid Science" (2003). Physics Faculty Publications. 251.
https://engagedscholarship.csuohio.edu/sciphysics_facpub/251
DOI
10.1016/S0021-9797(03)00193-0
Version
Postprint
Publisher's Statement
NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Colloid and Interface Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Colloid and Interface Science, 262, 1, June 2003. DOI#10.1016/S0021-9797(03)00193-0
Volume
262
Issue
1
