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Title
A symmetrical method to obtain shear moduli from microrheology
Source
Soft Matter
Date
2018
Author
Nishi, Kengo; Kilfoil, Maria L.; Schmidt, Christoph F.; MacKintosh, F. C.
Genre
Journal Article
Abstract
Passive microrheology typically deduces shear elastic loss and storage moduli from displacement time series or mean-squared displacements (MSD) of...
Volume
14
Issue
19
Start Page
3716
DOI
10.1039/C7SM02499A
Publication Status
PUBLISHED
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Title
Nonthermal fluctuations of the mitotic spindle
Source
Soft Matter
Date
2015
Author
Smith, Kevin; Griffin, Brian; Byrd, Henry; MacKintosh, F. C.; Kilfoil, Maria L.
Genre
Journal Article
Abstract
We present direct measurements of fluctuations in the nucleus of yeast cells. While prior work has shown these fluctuations to be active and non...
Volume
11
Issue
22
Start Page
4396
DOI
10.1039/C5SM00149H
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Title
Accurate detection and complete tracking of large populations of features in three dimensions
Source
Optics Express
Date
2009
Author
Gao, Yongxiang; Kilfoil, Maria L.
Genre
Journal Article
Abstract
Localization and tracking of colloidal particles in microscopy images generates the raw data necessary to understand both the dynamics and the...
Volume
17
Issue
6
Start Page
4685
DOI
10.1364/OE.17.004685
Publication Status
PUBLISHED
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Title
Universal behaviour in the mechanical properties of weakly aggregated colloidal particles
Source
Soft Matter
Date
2009
Author
Kamp, Stephen W.; Kilfoil, Maria L.
Genre
Journal Article
Abstract
We study the evolution of the elastic shear modulus of weakly aggregated colloidal particles during the onset of a delayed collapse under gravity....
Volume
5
Issue
12
Start Page
2438
DOI
10.1039/b814975e
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Title
Intermittent and spatially heterogeneous single-particle dynamics close to colloidal gelation
Source
Physical Review E
Date
2009
Author
Gao, Yongxiang; Kilfoil, Maria L.
Genre
Journal Article
Abstract
Dynamical heterogeneities exist ubiquitously in materials near a dynamical arrest transition, such as glass formation or gelation. Among the...
Volume
79
Issue
5
DOI
10.1103/PhysRevE.79.051406
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Title
Microrheology of microtubule solutions and actin-microtubule composite networks
Source
Physical Review Letters
Date
2009
Author
Pelletier, Vincent; Gal, Naama; Fournier, Paul; Kilfoil, Maria L.
Genre
Journal Article
Abstract
We perform local or microrheological measurements on microtubule solutions, as well as composite networks. The viscoelastic properties of...
Volume
102
Issue
18
DOI
10.1103/PhysRevLett.102.188303
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Title
Stochastic variation
Subtitle
From single cells to superorganisms
Source
HFSP Journal
Date
2009
Author
Kilfoil, Maria L.; Lasko, Paul; Abouheif, Ehab
Genre
Journal Article
Abstract
Observed phenotype often fails to correspond with genotype. Although it is well established that uncontrolled genetic modifier effects and...
Volume
3
Issue
6
Start Page
379
DOI
10.2976/1.3223356
Publication Status
PUBLISHED
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Title
A random walk description of the heterogeneous glassy dynamics of attracting colloids
Source
Journal of Physics: Condensed Matter
Date
2008
Author
Chaudhuri, Pinaki; Gao, Yongxiang; Berthier, Ludovic; Kilfoil, Maria; Kob, Walter
Genre
Journal Article
Abstract
We study the heterogeneous dynamics of attractive colloidal particles close to the gel transition using confocal microscopy experiments combined...
Volume
20
Issue
24
Start Page
244126
DOI
10.1088/0953-8984/20/24/244126
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Title
Direct imaging of dynamical heterogeneities near the colloid-gel transition
Source
Physical Review Letters
Date
2007
Author
Gao, Y.; Kilfoil, M. L.
Genre
Journal Article
Abstract
We observe the microscopic dynamics of a suspension of colloids with attractive interaction by confocal fluorescence microscopy to provide a deeper...
Volume
99
Issue
7
DOI
10.1103/PhysRevLett.99.078301
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Title
Dynamics of weakly aggregated colloidal particles
Source
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
Date
2003
Author
Kilfoil, Maria L.; Pashkovski, Eugene E.; Masters, James A.; Weitz, D. A.
Genre
Journal Article
Abstract
We discuss the behaviour of the dynamics of colloidal particles with a weak attractive interparticle interaction that is induced through the...
Editor
McLeish, T. C. B.; Cates, M. E.; Higgins, J. S.; Olmsted, P. D.
Volume
361
Issue
1805
Start Page
753
DOI
10.1098/rsta.2002.1163
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Title
Molecular orientation and dynamics of flexible polymers in strongly deforming flow fields
Date
2001
Author
Kilfoil, Maria
Genre
Dissertation/Thesis
Abstract
A method of spatially resolved magnetic resonance spectroscopy has been developed to allow studies of order and dynamics in complex fluids having...
Publisher
Memorial University of Newfoundland
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Title
Biaxial deformation of a polymer under shear
Subtitle
NMR test of the Doi-Edwards model with convected constraint release
Source
Physical Review E
Date
2001
Author
Cormier, Ryan J.; Kilfoil, Maria L.; Callaghan, Paul T.
Genre
Journal Article
Abstract
2 H NMR quadrupole interaction spectroscopy has been used to measure the deformation of a 670 kD poly(dimethylsiloxane) melt under shear in a...
Volume
64
Issue
5
DOI
10.1103/PhysRevE.64.051809
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Bookmarks:
Title
Selective storage of magnetization in strongly relaxing spin systems
Source
Journal of Magnetic Resonance
Date
2001
Author
Kilfoil, M.L.; Callaghan, P.T.
Genre
Journal Article
Abstract
We have investigated the use of a “split-sinc” RF pulse to selectively store magnetization from a selected region of a sample, for later recall in...
Volume
150
Issue
2
Start Page
110
DOI
10.1006/jmre.2001.2320
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Title
NMR measurement of the alignment tensor for a polymer melt under strong shearing flow
Source
Macromolecules
Date
2000
Author
Kilfoil, M. L.; Callaghan, P. T.
Genre
Journal Article
Abstract
2H NMR quadrupole interaction spectroscopy has been used to measure the deformation of a 610 kD PDMS melt under shear in a Couette cell. The...
Volume
33
Issue
18
Start Page
6828
DOI
10.1021/ma000554m
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Bookmarks:
Title
Slow motions in bilayers containing anionic phospholipid
Source
Physica A: Statistical Mechanics and its Applications
Date
1998
Author
Kilfoil, Maria L; Morrow, Michael R
Genre
Journal Article
Abstract
Lung surfactant monolayer formation and maintenance requires substantial reorganization of phospholipid assemblies containing up to 10% anionic...
Volume
261
Issue
1-2
Start Page
82
DOI
10.1016/S0378-4371(98)00372-0
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Bookmarks:
Title
NMR velocimetry and spectroscopy at microscopic resolution in small rheometric devices
Source
Applied Magnetic Resonance
Date
1998
Author
Britton, M.M.; Callaghan, P.T.; Kilfoil, M.L.; Mair, R.W.; Owens, K.M.
Genre
Journal Article
Abstract
We describe several different rheometric devices for use within the nuclear-magnetic-resonance probe of a standard widebore microimaging system....
Volume
15
Start Page
287
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Title
Chain deformation for a polymer melt under shear
Source
Physical Review Letters
Date
1998
Author
Callaghan, P. T.; Kilfoil, M. L.; Samulski, E. T.
Genre
Journal Article
Abstract
We used a Couette cell placed within an NMR microscopy apparatus to examine molecular alignment in polydimethylsiloxane melts under shear. 1 H...
Volume
81
Issue
20
Start Page
4524
DOI
10.1103/PhysRevLett.81.4524