Wed, 09 Jul 2008 13:30:40 BST CiteULike: dchens Behrend http://www.citeulike.org/user/dchen/author/Behrend CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/1505138 <i>Journal of Magnetism and Magnetic Materials, Vol. 293, No. 1. (May 2005), pp. 663-670.</i><br /><br />Metal-capping of one hemisphere of a nano or microparticle breaks the particle's optical symmetry, allowing its orientation to be tracked using fluorescence and reflection. Tracking orientation and rotation allows the torques acting on the particles be inferred. In addition to serving as rotational nanoviscometers these probes report on local Brownian, magnetic and biomechanical torques. Microrheology with modulated optical nanoprobes (MOONs) Caleb Behrend Jeffrey Anker Brandon Mcnaughton Raoul Kopelman doi:10.1016/j.jmmm.2005.02.072 Journal of Magnetism and Magnetic Materials, Vol. 293, No. 1. (May 2005), pp. 663-670. 2007-07-26T18:15:07-00:00 2005 Journal of Magnetism and Magnetic Materials 293 1 663 670 nano tracer