#### Filter Results:

- Full text PDF available (15)

#### Publication Year

1997

2017

- This year (1)
- Last five years (17)

#### Publication Type

#### Co-author

#### Publication Venue

#### Key Phrases

Learn More

- H B Eral, D van den Ende, F Mugele, M H G Duits
- Physical review. E, Statistical, nonlinear, and…
- 2009

We used video microscopy and particle tracking to study the dynamics of confined hard-sphere suspensions. Our fluids consisted of 1.1-microm-diameter silica spheres suspended at volume fractions of 0.33-0.42 in water-dimethyl sulfoxide. Suspensions were confined in a quasiparallel geometry between two glass surfaces: a millimeter-sized rough sphere and a… (More)

- Yixuan Li, Siva A Vanapalli, Michel H G Duits
- Biorheology
- 2009

We studied the dynamics of ballistically injected latex particles (BIP) inside endothelial cells, using video particle tracking to measure the mean squared displacement (MSD) as a function of lag time. The MSD shows a plateau at short times and a linear behavior at longer times, indicating that the BIP are trapped into a viscoelastic network. To reveal more… (More)

- S Ghosh, F Mugele, M H G Duits
- Physical review. E, Statistical, nonlinear, and…
- 2015

Colloidal suspensions flowing through microchannels were studied for the effects of both the shear flow and the proximity of walls on the particles' self-diffusion. Use of hydrostatic pressure to pump micron-sized silica spheres dispersed in water-glycerol mixture through poly(dimethylsiloxane) channels with a cross section of 30×24μm(2), allowed variation… (More)

- V A Tolpekin, M H G Duits, D van den Ende, J Mellema
- Langmuir : the ACS journal of surfaces and…
- 2004

We used video microscopy to study the behavior of aggregating suspensions in shear flow. Suspensions consisted of 920 nm diameter silica spheres, dispersed in a methanol/bromoform solvent, to which poly(ethylene glycol) (M = 35.000 g) was added to effect weak particle aggregation. With our solvent mixture, the refractive index of the particles could be… (More)

- W. Wolthers, D. van den Ende, +4 authors J. Mellema
- 1997

- Frieder Mugele, Bijoyendra Bera, +7 authors Ian Collins
- Scientific reports
- 2015

The relative wettability of oil and water on solid surfaces is generally governed by a complex competition of molecular interaction forces acting in such three-phase systems. Herein, we experimentally demonstrate how the adsorption of in nature abundant divalent Ca(2+) cations to solid-liquid interfaces induces a macroscopic wetting transition from finite… (More)

- Naveen Kumar, Lei Wang, Igor Siretanu, Michel Duits, Frieder Mugele
- Langmuir : the ACS journal of surfaces and…
- 2013

We use contact angle goniometry, imaging ellipsometry, and atomic force microscopy to study the stability and wettability of Langmuir-Blodgett (LB) monolayers of stearic acid on silica substrates, upon drying and exposure to aqueous solutions of varying salinity. The influences of Ca(2+) and Na(+) ions are compared by varying their concentrations, both in… (More)

- H B Eral, J M Oh, D van den Ende, F Mugele, M H G Duits
- Langmuir : the ACS journal of surfaces and…
- 2010

Video microscopy and particle tracking were used to measure the spatial dependence of the diffusion coefficient (D(α)) of colloidal particles in a closed cylindrical cavity. Both the height and radius of the cylinder were equal to 9.0 particle diameters. The number of trapped particles was varied between 1 and 16, which produced similar results. In the… (More)

- Dirk van den Ende, Eko H Purnomo, Michel H G Duits, Walter Richtering, Frieder Mugele
- Physical review. E, Statistical, nonlinear, and…
- 2010

Using particle tracking microrheology, we studied the glass transition in dense suspensions of thermosensitive microgel particles. These suspensions can be tuned reversibly between the glass state at low temperature and the liquid state at high temperature. In the glass state, the ensemble averaged mean squared displacements (MSDs) of added fluorescent… (More)