Sat, 26 Jul 2008 06:17:57 BST CiteULike: dchen's Lubensky http://www.citeulike.org/user/dchen/author/Lubensky CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/822249 <i>Physical Review Letters, Vol. 85, No. 8. (2000), 1774.</i><br /><br />We study the dynamics of rigid spheres embedded in viscoelastic media and address two questions of importance to microrheology. First; we calculate the complete response to an external force of a single bead in a homogeneous elastic network viscously coupled to an incompressible fluid. From this response function we find the frequency range where the standard assumptions of microrheology are valid. Second; we study fluctuations when embedded spheres perturb the media around them and show that mutual fluctuations of two separated spheres provide a more accurate determination of the complex shear modulus than do the fluctuations of a single sphere. One- and Two-Particle Microrheology Alex Levine TC Lubensky doi:10.1103/PhysRevLett.85.1774 Physical Review Letters, Vol. 85, No. 8. (2000), 1774. 2006-08-30T16:26:55-00:00 2000 Physical Review Letters 85 8 1774 American Physical Society cooperative diffusion microrheology http://www.citeulike.org/user/dchen/article/197927 <i>Nature, Vol. 435, No. 7039., pp. 191-194.</i> Nonlinear elasticity in biological gels Cornelis Storm Jennifer Pastore FC Mackintosh TC Lubensky Paul Janmey doi:10.1038/nature03521 Nature, Vol. 435, No. 7039., pp. 191-194. 2005-05-13T07:43:38-00:00 Nature 0028-0836 435 7039 191 194 Nature Publishing Group biology elasticity gel http://www.citeulike.org/user/dchen/article/2719848 <i>Physical Review Letters, Vol. 85, No. 7. (2000), 1428.</i> Particle Dynamics in Sheared Granular Matter W Losert L Bocquet TC Lubensky JP Gollub doi:10.1103/PhysRevLett.85.1428 Physical Review Letters, Vol. 85, No. 7. (2000), 1428. 2008-04-26T00:23:54-00:00 2000 Physical Review Letters 85 7 1428 American Physical Society grains shear