Home List of Titles Lateral hydrodynamic interactions between an emulsion droplet and a flat surface evaluated by frictional force microscopy
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/190549
- Lateral hydrodynamic interactions between an emulsion droplet and a flat surface evaluated by frictional force microscopy
- Vakarelski, Ivan U.; Dagastine, Raymond R.; Chan, Derek Y. C.; Stevens, Geoffrey W.; Higashitani, Ko; Grieser, Franz
- We introduce a lateral atomic force microscopy (AFM) method to measure the hydrodynamic drag force acting on a microscopic emulsion droplet moving parallel to a flat surface. A tetradecane oil droplet formed in an aqueous solution of sodium dodecylsulfate was attached to a V-shaped atomic force microscopy cantilever, and lateral hydrodynamic interactions between the droplet and a flat glass surface were measured using a range of scanning velocities. The droplet was positioned either far from the oscillating surface or was pressed to the surface under a constant applied load. These measurements demonstrate the feasibility of using AFM to study lateral hydrodynamic interactions and lubricity between soft matter materials relevant to a large number of applications in areas as diverse as flavor delivery in foods to the applications of emulsions or emollients in personal care products.
- Publication type
- Journal article
- Langmuir, Vol. 26, no. 11 (Jun 2010), pp. 8002-8007
- Publication year
- FOR Code(s)
- 0306 Physical Chemistry (Incl. Structural)
- AFM; Atomic force/methods; Atomic force microscope; Emulsions; Microscopy
- American Chemical Society
- Publisher URL
- Copyright © 2010 American Chemical Society.
- Peer reviewed