Search Results - "Popescu, M. N"

Effective Interaction between Active Colloids and Fluid Interfaces Induced by Marangoni Flows by Domínguez, Alvaro, Malgaretti, P, Popescu, M N, Dietrich, S

“…We show theoretically that near a fluid-fluid interface a single active colloidal particle generating, e.g., chemicals or a temperature gradient experiences an…”
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Guiding Catalytically Active Particles with Chemically Patterned Surfaces by Uspal, W E, Popescu, M N, Dietrich, S, Tasinkevych, M

“…Catalytically active Janus particles suspended in solution create gradients in the chemical composition of the solution along their surfaces, as well as along…”
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Self-Motility of an Active Particle Induced by Correlations in the Surrounding Solution by Domínguez, Alvaro, Popescu, M N, Rohwer, C M, Dietrich, S

“…Current models of phoretic transport rely on molecular forces creating a "diffuse" particle-fluid interface. We investigate theoretically an alternative…”
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Pulling and pushing a cargo with a catalytically active carrier by Popescu, M. N, Tasinkevych, M, Dietrich, S

“…Catalytically active particles suspended in a liquid can move due to self-phoresis by generating solute gradients via chemical reactions of the solvent…”
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Phoretic motion of spheroidal particles due to self-generated solute gradients by Popescu, M. N., Dietrich, S., Tasinkevych, M., Ralston, J.

“…We study theoretically the phoretic motion of a spheroidal particle, which generates solute gradients in the surrounding unbounded solvent via chemical…”
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Interface-mediated spontaneous symmetry breaking and mutual communication between drops containing chemically active particles by Singh, D. P., Domínguez, A., Choudhury, U., Kottapalli, S. N., Popescu, M. N., Dietrich, S., Fischer, P.

“…Symmetry breaking and the emergence of self-organized patterns is the hallmark of complexity. Here, we demonstrate that a sessile drop, containing titania…”
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Shape-dependent guidance of active Janus particles by chemically patterned surfaces by Uspal, W E, Popescu, M N, Tasinkevych, M, Dietrich, S

“…Self-phoretic chemically active Janus particles move by inducing-via non-equilibrium chemical reactions occurring on their surfaces-changes in the chemical…”
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Capillary Rise with Velocity-Dependent Dynamic Contact Angle by Popescu, M. N, Ralston, J, Sedev, R

“…The classic description of the rate of capillary rise given by the Washburn equation, which assumes that the contact angle preserves the equilibrium value at…”
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Capillary rise dynamics of aqueous glycerol solutions in glass capillaries: A critical examination of the Washburn equation by O’Loughlin, M., Wilk, K., Priest, C., Ralston, J., Popescu, M.N.

“…[Display omitted] •Study of capillary rise of glycerol or aqueous glycerol mixtures in glass capillaries.•Glycerol: excellent agreement between experimental…”
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Perils of ad hoc approximations for the activity function of chemically powered colloids by Popescu, M. N., Uspal, W. E., Tasinkevych, M., Dietrich, S.

“… Colloids can achieve motility by promoting at their surfaces chemical reactions in the surrounding solution. A well-studied case is that of self-phoresis, in…”
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Effective squirmer models for self-phoretic chemically active spherical colloids by Popescu, M. N., Uspal, W. E., Eskandari, Z., Tasinkevych, M., Dietrich, S.

“… Various aspects of self-motility of chemically active colloids in Newtonian fluids can be captured by simple models for their chemical activity plus a…”
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Exactly solvable model of monomer-monomer reactions on a two-dimensional random catalytic substrate by OSHANIN, G, POPESCU, M. N, DIETRICH, S

“…We study the equilibrium properties of a monomer-monomer A+B--> reaction on a two-dimensional substrate containing randomly placed catalytic bonds. Interacting…”
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Disorder induced diffusive transport in ratchets by Popescu, M N, Arizmendi, C M, Salas-Brito, A L, Family, F

“…The effects of quenched disorder on the overdamped motion of a driven particle on a periodic, asymmetric potential are studied. While for the unperturbed…”
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Erratum: Effective Interaction between Active Colloids and Fluid Interfaces Induced by Marangoni Flows [Phys. Rev. Lett. 116, 078301 (2016)] by Domínguez, Alvaro, Malgaretti, P, Popescu, M N, Dietrich, S

“…This corrects the article DOI: 10.1103/PhysRevLett.116.078301…”
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Model for spreading of liquid monolayers by Popescu, M N, Dietrich, S

“…Manipulating fluids at the nanoscale within networks of channels or chemical lanes is a crucial challenge in developing small scale devices to be used in…”
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Rate-equation approach to island capture zones and size distributions in epitaxial growth by Amar, J G, Popescu, M N, Family, F

“…Understanding and predicting the effects of correlations between island size and the rate of monomer capture has been shown to be the central problem in…”
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Asymptotic capture number and island size distributions for one-dimensional irreversible submonolayer growth by Amar, J. G., Popescu, M. N.

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Self-motility of an active particle induced by correlations in the surrounding solution by Domínguez, Alvaro, Popescu, M. N, Rohwer, C. M, Dietrich, S

“…Physical Review Letters 125, 268002 (2020) Current models of phoretic transport rely on molecular forces creating a "diffuse" particle-fluid interface. We…”
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Self-diffusiophoresis induced by fluid interfaces by Malgaretti, P, Popescu, M. N, Dietrich, S

“…The influence of a fluid-fluid interface on self-phoresis of chemically active, axially symmetric, spherical colloids is analyzed. Distinct from the studies of…”
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Anisotropic diffusion-limited aggregation by Popescu, M N, Hentschel, H G E, Family, F

“…Using stochastic conformal mappings, we study the effects of anisotropic perturbations on diffusion-limited aggregation (DLA) in two dimensions. The harmonic…”
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