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PUBLICATIONS
Cell stimulation
with optically manipulated microsources
H. Kress, J.-G. Park, C. O. Mejean, J. D. Forster, J. Park, S.
S. Walse, O. D. Weiner, T. M. Fahmy, E. R. Dufresne,
Nature Methods (2009) 10.1038/nmeth.1400
Selected Movies
Many-Body Electrostatic Forces Between Colloidal Particles at Vanishing Ionic Strength
J.W. Merrill, S.K. Sainis, E.R. Dufresne, Physical Review Letters, 103 138301 (2009)
Synthesis of Colloidal Particles with the symmetry of Water Molecules
J.-G Park, J.D. Forster, E.R. Dufresne,Langmuir DOI: 10.1021/la901969d (2009)
Mechanical properties of individual microgel particles through the deswelling transition
S. M. Hashmi, E. R. Dufresne, Soft Matter, DOI: 10.1039/b906051k (2009)
Multiplexed Force Measurements on Live Cells with Holographic Optical Tweezers
C. O. Mejean, A. W. Schaefer, E. A. Millman, P. Forscher, E.R. Dufresne, Optics Express, 17, 6209 (2009)
Self Assembly of Biophotonic Nanostructures by Phase Separation
E. R. Dufresne, H. Noh, V. Saranathan, S.G.J. Mochrie, H. Cao, R.O. Prum, Soft Matter, DOI: 10.1039/b902775k (2009)
Development of colour-producing beta-keratin nanostructures in avian feather barbs
R.O. Prum, E. R. Dufresne, T. Quinn, K. Waters, J. R. Soc. Interface, 6, S253 (2009)
Electrostatic Interactions of Colloidal Particles at Vanishing Ionic Strength
S. K. Sainis, J. W. Merrill, E. R. Dufresne, Langmuir, 24, 13334 (2008)
Minimal Model for Kinetic Arrest
P. Pal, C. S. O'Hern, J. Blawzdziewicz, E. R. Dufresne, and R. Stinchcombe, Physical Review E, 78, 011111, (2008)
Electrostatic Interactions of Colloidal Particles in Nonpolar Solvents: Role of Surface Chemistry and Charge Control Agents
S. K. Sainis, V. Germain, C. O. Mejean and E. R. Dufresne, Langmuir, 24, 1160, (2008)
Statistics of Particle Trajectories at Short Time-Intervals Reveal fN-Scale Colloidal Forces
S. K. Sainis, V. Germin and E. R. Dufresne, Physical Review Letters, 99, 018303, (2007)
Spatially extended FCS for visualizing and quantifying high-speed multiphase flows in microchannels
S.M. Hashmi, M. Loewenberg and E.R. Dufresne, Optics Express, 15 6528 (2007)
Automated trapping, assembly and sorting with holographic optical tweezers
S. C. Chapin, V. Germain and E.R. Dufresne, Optics Express, 14 13095 (2006)
Movies:
Figure 2(a) - Avoiding Collisions (727KB)
Figure 3(a) - Automated Assembly (959KB)
Figure 3(b) - Automated Sorting (2334 KB)
Observation of Plasmon Propagation, Redirection, and Fan-Out in Silver Nanowires
A.W. Sanders, D.A. Routenberg, B.J. Wiley, Y. Xia, E.R. Dufresne and M.A. Reed, Nano Letters, 6 1822 (2006)
Dynamics
of Fracture in Drying Suspensions
E.R. Dufresne, D.J. Stark, N.A. Greenblatt, J.X. Cheng, J.W.
Hutchinson, L. Mahadevan, and D.A. Weitz, Langmuir, 22 7144 (2006)
Charge
Stabilization in Nonpolar Solvents
M. F. Hsu, E. R. Dufresne, D. A. Weitz, Langmuir 21 4881 (2005)
Onset of
Buckling in Drying Droplets of Colloidal Suspensions
N. Tsapis, E. R. Dufresne, S. S. Sinha, C.S. Riera, J. W. Hutchinson,
L. Mahadevan, and D. A. Weitz, Physical Review Letters 94 018302 (2005)
Reverse
Micelles Enable
Strong Electrostatic Interactions Between
Colloidal Particles in Nonpolar Solvents
M. F. Hsu, E. R. Dufresne, D. A. Weitz, cond-mat/0412185 (2004)
Flow and
Fracture in Drying
Nanoparticle Suspensions
E. R. Dufresne, E. I. Corwin, N. A. Greenblatt, J. Ashmore, D.Y.Wang,
A. D. Dinsmore, J. X. Cheng, X. S. Xie, J.W. Hutchinson, and D.
A.Weitz, Physical Review Letters
91 224501 (2003)
Brownian
Dynamics of a Sphere
Between Parallel Walls
E. R. Dufresne, D. Altman, and D. G. Grier, Europhysics Letters 53 264 (2001)
Computer-generated
holographic optical tweezer arrays
E. R. Dufresne, G. C. Spalding, M. T. Dearing, S. A. Sheets, D.G.
Grier, Review of Scientific
Instruments 72 1810
(2001)
Hydrodynamic
Coupling of Two Brownian Spheres to a Planar Surface
E. R. Dufresne, T. M. Squires, M. P. Brenner, and D. G. Grier, Physical Review Letters 85 3317 (2000)
Hydrodynamic
Coupling and Optical Patterning of Many-Particle Colloidal Systems
E.R. Dufresne, Ph. D. Thesis, University of Chicago (2000)
This document provides a
thorough introduction into the theory and
original implemention of holographic optical tweezers.
Optical
tweezer arrays and optical substrates created with diffractive
optics
E. R. Dufresne and D. G. Grier, Review
of Scientific Instruments 69
1974 (1998)
US PATENTS
8. #7,133,203 Apparatus for applying optical gradient forces. (2006)
7. #7,104,659 Apparatus for using optical tweezers to manipulate materials (2006)
6. #6,863,406 Apparatus and method for fabricating,
sorting, and integrating materials with holographic optical traps (2005)
5. #6,846,084 Apparatus
for using optical tweezers to manipulate materials (2005)
4. #6,626,546
Apparatus for using optical tweezers to manipulate materials (2003)
3. #6,624,940
Method for applying optical gradient forces and moving material (2003)
2. #6,416,190
Apparatus for using optical tweezers to manipulate materials (2002)
1. #6,055,106
Apparatus for applying optical gradient forces (2000)
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