A group of people sitting together

Ofer Manor

Personal Info

Head of the Surfaces and Colloids Group, Technion, from 2013
Postdoctorate 2010-2013, MicroNanophysics Research Lab, Universities of Monash and RMIT
PhD 2010, Department of Mathematics and Statistics, The University of Melbourne
MSc 2006, Department of Chemical Engineering, Technion IIT
BSc 2003, Department of Chemical Engineering, Technion IIT

Research Fields

We work on cutting edge science and technology for the reclamation of contaminated water and for the precision coating of surfaces. In particular, we employ surface phenomena (soft matter, colloids, molecular forces, and transport phenomena) and piezoelectric based MEMs (micro-electromechanical) platforms to manipulate and separate oil/water/solid mixtures to their individual components and to coat surfaces by thin films of simple and complex liquids.

Students and postdoctoral fellows who are interested in experimental or theoretical work are welcomed to contact us.

 

Research Topics

Our theory projects are about:
(a) AcoustoWetting (dynamic wetting of substrates by liquid films under the action of MHz-frequency surface acoustic waves) of free surfaces and nano-channels.
(b) using density functional theory along with theorems for colloidal forces to construct energy functionals for calculating the equilibrium state of complex liquids and for generating near equilibrium gradient dynamics models of transport in complex liquids.
(c) modelling optical tweezers force measurements of colloidal interactions.
(d) dendrite growth prevention by convective flow.

Our experiment projects are about:
(a) AcoustoWetting of pure, mixture, and non-newtonian liquids.
(b) separating oil/water/solid mixtures.
(b) the pattern deposition of mixtures of colloidal particles from a volatile carrier liquid.
(c) transport phenomena in volatile solvent mixtures.

 

Publications

E. Homede, A. Zigelman, L. Abezgauz, and O. Manor. Signatures of van der Waals and electrostatic forces in the deposition of nanoparticle assemblies; J. Phys. Chem. Lett. 9 (5226–5232) 2018 
 https://pubs.acs.org/doi/10.1021/acs.langmuir.8b02268

Z. and O. Manor. The deposition of colloidal particles from a sessile drop of a volatile suspension subject to particle adsorption and coagulation, J. Colloids Interface Sci. 509 (195) 2018 https://doi.org/10.1016/j.colsurfa.2018.02.038

M. Morozov and O. Manor. An extended Landau–Levich model for the dragging of a thin liquid films with a propagating surface acoustic wave, J. Fluid Mech., 810 (307) 2017
https://doi.org/10.1017/jfm.2016.728

A. Zigelman and O. Manor. A model for pattern deposition off an evaporating solution subject to contact angle hysteresis and finite solubility, Soft Matter, (DOI: 10.1039/C6SM00579A) 2016
http://pubs.rsc.org/en/Content/ArticleLanding/2016/SM/C6SM00579A#!divAbstract

G. Altshuler and O. Manor. Spreading dynamics of a partially wetting water film atop a MHz substrate vibration, Phys. Fluids, 27 (102103) 2015 http://scitation.aip.org/content/aip/journal/pof2/27/10/10.1063/1.4932086

O. Manor, L. Y. Yeo, and J. R. Friend. The appearance of boundary layers and 
drift flows due to high-frequency surface waves, J. Fluid Mech., 707(482) 2012  http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8690256

O. Manor, T. T. Chau, G. W. Stevens, D. Y. C. Chan, F. Grieser and R. R. Dagastine. Polymeric stabilised emulsions: steric effects and deformation in soft systems. Langmuir, 28(4599) 2012 http://pubs.acs.org/doi/abs/10.1021/la204272u

O. Manor, I. U. Vakarelski, X. Tang, S. J. O’Shea, G. W. Stevens, F. Grieser, R. R. Dagastine and D. Y. C. Chan. Hydrodynamic boundary conditions and dynamic forces between bubbles and surfaces. Phys. Rev. Lett. 101(024501), 2008 http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.101.024501

For further publications please visit the google scholar site:
https://scholar.google.com/citations?user=ux3V_usAAAAJ&hl=en