6 papers · 1 filter
Slow, non-diffusive dynamics in concentrated nanoemulsions
H. Guo, J. N. Wilking, D. Liang +3
Using multispeckle x-ray photon correlation spectroscopy, we have measured the slow, wave-vector dependent dynamics of concentrated, disordered nanoemulsions composed of silicone o…
Wrinkling of a bilayer membrane
A. Concha, J. W. McIver, P. Mellado +3
The buckling of elastic bodies is a common phenomenon in the mechanics of solids. Wrinkling of membranes can often be interpreted as buckling under constraints that prohibit large…
Slow dynamics, aging, and glassy rheology in soft and living matter
Ranjini Bandyopadhyay, Dennis Liang, James L. Harden +1
We explore the origins of slow dynamics, aging and glassy rheology in soft and living matter. Non-diffusive slow dynamics and aging in materials characterised by crowding of the co…
Enhanced Elasticity and Soft Glassy Rheology of a Smectic in a Random Porous Environment
Ranjini Bandyopadhyay, Dennis Liang, Ralph H. Colby +2
We report studies of the frequency dependent shear modulus, , of the liquid crystal octylcyanobiphenyl (8CB) confined in a colloidal aerosil gel. With the ons…
Evolution of particle-scale dynamics in an aging clay suspension
R. Bandyopadhyay, D. Liang, H. Yardimci +5
Multispeckle x-ray photon correlation spectroscopy was employed to characterize the slow dynamics of a colloidal suspension formed by highly-charged, nanometer-sized disks. At scat…
Memory in an aging molecular glass
H. Yardimci, R. L. Leheny
The dielectric susceptibility of the molecular liquid sorbitol below its calorimetric glass transition displays memory strikingly similar to that of a variety of glassy materials.…