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Showing 1 to 12 of 63 entries
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Analysis of Fine Bubble Attachment onto a Solid Surface within the Framework of Classical DLVO Theory.

Journal of colloid and interface science

Yang C, Dabros T, Li D, Czarnecki J, Masliyah JH.
PMID: 10527573
J Colloid Interface Sci. 1999 Nov 01;219(1):69-80. doi: 10.1006/jcis.1999.6421.

Fine bubble attachment onto a solid surface in an impinging jet flow was analyzed within the framework of DLVO theory. The effects of hydrodynamic convection, van der Waals (VDW) interaction, electrostatic double-layer (EDL) interaction, and gravitational force on bubble...

Measurement of Contact Angles for Fumed Silica Nanospheres Using Enthalpy of Immersion Data.

Journal of colloid and interface science

Yan N, Maham Y, Masliyah JH, Gray MR, Mather AE.
PMID: 10882485
J Colloid Interface Sci. 2000 Aug 01;228(1):1-6. doi: 10.1006/jcis.2000.6856.

The hydrophobicity of fine particles is important for their behavior at interfaces, for example, in stabilizing emulsions. In this study, contact angles were evaluated for silanized fumed silica nanospheres with mean primary diameter of about 12 nm, using heat...

Fractal structure of asphaltene aggregates.

Journal of colloid and interface science

Rahmani NH, Dabros T, Masliyah JH.
PMID: 15837477
J Colloid Interface Sci. 2005 May 15;285(2):599-608. doi: 10.1016/j.jcis.2004.11.068.

A photographic technique coupled with image analysis was used to measure the size and fractal dimension of asphaltene aggregates formed in toluene-heptane solvent mixtures. First, asphaltene aggregates were examined in a Couette device and the fractal-like aggregate structures were...

Particle deposition onto charge heterogeneous surfaces: convection-diffusion-migration model.

Langmuir : the ACS journal of surfaces and colloids

Nazemifard N, Masliyah JH, Bhattacharjee S.
PMID: 17106977
Langmuir. 2006 Nov 21;22(24):9879-93. doi: 10.1021/la061702q.

The role of surface charge heterogeneity of planar collectors on particle deposition and distribution was investigated in the vicinity of a heterogeneous surface for a radial impinging jet flow geometry. The charge heterogeneity was modeled as concentric circular stripes...

Stepwise thickening in aqueous foam films stabilized by sodium naphthenates.

Journal of colloid and interface science

Taylor SD, Czarnecki J, Masliyah J.
PMID: 15589558
J Colloid Interface Sci. 2005 Feb 15;282(2):499-502. doi: 10.1016/j.jcis.2004.08.180.

During drainage of a foam film formed from an aqueous sodium naphthenate solution, a transient, local, stepwise thickening process was observed. Film stratification is related to the stepwise thinning drainage process where individual layers of material are drained from...

Colloidal interactions between Langmuir-Blodgett bitumen films and fine solid particles.

Langmuir : the ACS journal of surfaces and colloids

Long J, Zhang L, Xu Z, Masliyah JH.
PMID: 17014125
Langmuir. 2006 Oct 10;22(21):8831-9. doi: 10.1021/la0608866.

In oil sand processing, accumulation of surface-active compounds at various interfaces imposes a significant impact on bitumen recovery and bitumen froth cleaning (i.e., froth treatment) by altering the interfacial properties and colloidal interactions among various oil sand components. In...

Probing colloidal forces between a Si3N4 AFM tip and single nanoparticles of silica and alumina.

Journal of colloid and interface science

Drelich J, Long J, Xu Z, Masliyah J, White CL.
PMID: 16942778
J Colloid Interface Sci. 2006 Nov 15;303(2):627-38. doi: 10.1016/j.jcis.2006.08.007. Epub 2006 Aug 11.

The atomic force microscope (AFM) has been used to measure surface forces between silicon nitride AFM tips and individual nanoparticles deposited on substrates in 10(-4) and 10(-2) M KCl solutions. Silica nanoparticles (10 nm diameter) were deposited on an...

A microfluidic electrochemical detection technique for assessing stability of thin films and emulsions.

Journal of colloid and interface science

Mostowfi F, Czarnecki J, Masliyah J, Bhattacharjee S.
PMID: 17964591
J Colloid Interface Sci. 2008 Jan 15;317(2):593-603. doi: 10.1016/j.jcis.2007.09.068. Epub 2007 Sep 29.

An experimental technique is developed for assessing stability of thin liquid films by application of electric potential to compress the liquid film and to simultaneously measure the electrical properties of the system. The concept involves creating a thin film...

Kinetics of Particle Transport to a Solid Surface from an Impinging Jet under Surface and External Force Fields.

Journal of colloid and interface science

Czarnecki J, Dabros T, Li D, Masliyah JH, Yang C.
PMID: 9820768
J Colloid Interface Sci. 1998 Dec 01;208(1):226-240. doi: 10.1006/jcis.1998.5806.

Based on the presented model for the impinging jet system, extensive theoretical analysis was made on particle deposition. Complete transport equations with consideration of gravity, van der Waals, and electrical double layer (EDL) interactions, as well as hydrodynamic interactions,...

Emulsification through Area Contraction.

Journal of colloid and interface science

Czarnecki J, Dabros T, Masliyah J, Yeung A.
PMID: 9924128
J Colloid Interface Sci. 1999 Feb 01;210(1):222-224. doi: 10.1006/jcis.1998.5943.

Emulsification requiring very little input energy can be induced at an oil-water interface that is initially in a state of equilibrium. The process involves destabilization, through contraction, of local interfacial regions. For emulsification to occur, it is necessary for...

Effect of surface mobility on the particle sliding along a bubble or a solid sphere.

Journal of colloid and interface science

Wang W, Zhou Z, Nandakumar K, Xu Z, Masliyah JH.
PMID: 12651135
J Colloid Interface Sci. 2003 Mar 01;259(1):81-8. doi: 10.1016/s0021-9797(02)00140-6.

The sliding velocity of glass beads on a spherical surface, made either of an air bubble or of a glass sphere held stationary, is measured to investigate the effect of surface mobility on the particle sliding velocity. The sliding...

Low-Dose Risperidone-Induced Oculogyric Crises in an Adolescent Male with Autism, Tourette's and Developmental Delay.

Journal of the Canadian Academy of Child and Adolescent Psychiatry = Journal de l'Academie canadienne de psychiatrie de l'enfant et de l'adolescent

Masliyah T, Ad-Dab'bagh Y.
PMID: 21804851
J Can Acad Child Adolesc Psychiatry. 2011 Aug;20(3):214-6.

This article will review the case of a young patient with mental retardation, autistic disorder, and Tourette Syndrome who exhibited a favourable treatment response preferentially to risperidone. His presentation, however, was complicated by an exquisite sensitivity to risperidone displayed...

Showing 1 to 12 of 63 entries