Article-Journal

Characterizing Concentrated, Multiply Scattering, and Actively Driven Fluorescent Systems with Confocal Differential Dynamic Microscopy
We introduce confocal differential dynamic microscopy (ConDDM), a new technique yielding information comparable to that given by light …
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Giant thermophoresis of poly(N-isopropylacrylamide) microgel particles
Thermophoresis is the rectification of Brownian motion induced by the presence of a thermal gradient ∇T, yielding a net drift of …
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Two-Dimensional X-Ray Beam Phase Sensing
We present a new method to analyze quantitatively the wave front of a partially coherent x-ray beam. The technique is based on the use …
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Effect of configuration of the microchannels fabricated by femtosecond laser micromachining on topological defects in confined liquid crystals
The Femtosecond laser micromachining is a versatile tool for fabrication of microfluidic channel network; we exploit the fast …
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Liquid crystal self-assembly of random-sequence DNA oligomers
Concentrated solutions of DNA oligomers (6 to 20 base pairs) organize into chiral nematic (NEM) and columnar (COL) liquid crystal (LC) …
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Non-equilibrium fluctuations on earth and in micro-gravity. The GRADFLEX experiment
We present the results of measurements of giant nonequilibrium fluctuations in a single component fluid (density fluctuations) and a …
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Kinetics of colloidal fractal aggregation by differential dynamic microscopy
We study the kinetics of an aggregation process induced by adding salt to a stable colloidal suspension of 73 nm (diameter) particles. …
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Topological defects of nematic liquid crystals confined in porous networks
We study the formation of topological defects in nematic liquid crystals confined in open bicontinuous networks produced in glass by …
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Thermal Fluctuations in a Layer of Liquid Subjected to Temperature Gradients with and without the Influence of Gravity
We report data for nonequilibrium density fluctuations in a layer of liquid CS 2 subjected to temperature gradients on Earth and in a …
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Fractal fronts of diffusion in microgravity
Spatial scale invariance represents a remarkable feature of natural phenomena. A ubiquitous example is represented by miscible liquid …
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