Direct measurement of colloidal forces
โ Scribed by Calderon, F. Leal; Stora, T.; Mondain Monval, O.; Poulin, P.; Bibette, J.
- Book ID
- 121381603
- Publisher
- The American Physical Society
- Year
- 1994
- Tongue
- English
- Weight
- 442 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0031-9007
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๐ SIMILAR VOLUMES
A refined methodology which allows attachment of submicrometer colloidal particles to atomic force microscopy cantilevers is described. The interactions between particles of this size and both mica and silica surfaces in aqueous electrolyte at pH 5.8 have been studied. The monotonic repulsive force
## are dependent on the interactions between colloidal particles The van der Waals and electrostatic interaction energies beor particles and macroscopic surfaces. Traditionally, colloitween a single particle and a flat plate were measured using the dal interactions have been described by the DLVO
An atomic force microscope was used to measure the forces between a silica sphere (diameter 10 ฮผm) and a n-decane droplet (diameter 0.3 mm) in water. Force-distance profiles showed a weak attraction and adhesion due to van der Waals forces. When the anionic surfactant sodium dodecyl sulfate was adde