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- Selected Publications
- HJ Butt, B Cappella, M Kappl - Surface science reports, 2005 - ElsevierThe atomic force microscope (AFM) is not only a tool to image the topography of solid
surfaces at high resolution. It can also be used to measure force-versus-distance curves.
Such curves, briefly called force curves, provide valuable information on local material ...
[HTML] Measuring electrostatic, van der Waals, and hydration forces in electrolyte solutions with an atomic force microscopeHJ Butt - Biophysical Journal, 1991 - ElsevierIn atomic force microscopy, the tip experiences electrostatic, van der Waals, and hydration
forces when imaging in electrolyte solution above a charged surface. To study the
electrostatic interaction force vs distance, curves were recorded at different salt ...R Raiteri, M Grattarola, HJ Butt, P Skládal - Sensors and Actuators B: …, 2001 - ElsevierThe merging of silicon microfabrication techniques with surface functionalization
biochemistry offers new exciting opportunities in developing microscopic biomedical
analysis devices with unique characteristics. Micro-mechanical transducers for chemical ...Abstract For several centuries fluid dynamics studies have relied upon the assumption that
when a liquid flows over a solid surface, the liquid molecules adjacent to the solid are
stationary relative to the solid. This no-slip boundary condition (BC) has been applied ...HJ Butt, M Jaschke, W Ducker - Bioelectrochemistry and Bioenergetics, 1995 - ElsevierSurface forces determine the behaviour and properties of colloids, including biological
molecules, micelles and membranes. Recently it has been realized that the atomic force
microscope, which is normally used to image the topography of surfaces with high ...LO Heim, J Blum, M Preuss, HJ Butt - Physical Review Letters, 1999 - APSAn experimental setup, based on the principles of atomic force microscopy (AFM), was used
to measure directly the adhesion and rolling-friction forces between individual silica
microspheres of radii between 0.5 and 2.5 mm. It showed that the linear dependence of ...HJ Butt - Journal of colloid and interface science, 1996 - ElsevierA technique for determining surface stress changes at solid–gas and solid–liquid interfaces
with an atomic force microscope is presented. Therefore, the bending of a microfabricated
cantilever, prepared with different opposite faces, is measured. This bending is directly ...HJ Butt - Journal of colloid and interface science, 1994 - ElsevierAbstract With atomic force microscopes the force between individual colloidal particles and
surfaces can be measured. Often, however, the measurement of attractive forces is
hampered by the fact that the particle mounted on a force sensor" snaps" or" jumps" onto ...
[PDF] Surface roughness and hydrodynamic boundary slip of a Newtonian fluid in a completely wetting systemE Bonaccurso, HJ Butt, VSJ Craig - Physical review letters, 2003 - researchgate.netThe influence of surface roughness on the boundary condition for the flow of a Newtonian
fluid near a hard wall has been investigated by measurement of the hydrodynamic drainage
force. The degree of slip is found to increase with surface roughness. This leads to the ...
Hydrodynamic force measurements: boundary slip of water on hydrophilic surfaces and electrokinetic effectsE Bonaccurso, M Kappl, HJ Butt - Physical review letters, 2002 - APSThe hydrodynamic drainage force of aqueous medium between smooth hydrophilic surfaces
was measured with the colloidal probe technique up to shear rates of typically 104 s21.
Measured force curves were compared to simulations. To reach agreement between ...
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