- Web page
- Selected Publications
- 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 ...
[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 ...G Sun, E Bonaccurso, V Franz, HJ Butt - The Journal of chemical physics, 2002 - link.aip.orgThe force profile between a glass microsphere and mica in 1-propanol has been measured
with the colloidal probe technique. Oscillatory solvation forces indicate a layered structure of
the confined propanol for at least three layers. In the same experiment, hydrodynamic ...Abstract Interparticle and surface forces are of great importance in many fields of pure and
applied science. We present an apparatus to measure the normal and friction forces acting
between a particle (radius of 0.5–20 μm) and another solid surface. The apparatus is ...
Microdrops on atomic force microscope cantilevers: evaporation of water and spring constant calibrationE Bonaccurso, HJ Butt - The Journal of Physical Chemistry B, 2005 - ACS PublicationsThe evaporation of water drops with radii~ 20 μm was investigated experimentally by
depositing them onto atomic force microscope (AFM) cantilevers and measuring the
deflection versus time. Because of the surface tension of the liquid, the Laplace pressure ...E Bonaccurso, HJ Butt, B Hankeln… - Applied Physics …, 2005 - ieeexplore.ieee.orgAbstract A process for the fabrication of microvessels and microlenses in polymers is
presented. A drop of solvent (diameter between 15 and 150 μm) is deposited by an ink-jet
method onto a flat polymer substrate. After evaporation of the solvent a lenticular cavity of ...
Effect of capillary pressure and surface tension on the deformation of elastic surfaces by sessile liquid microdrops: An experimental investigationR Pericet-Cámara, A Best, HJ Butt, E Bonaccurso - Langmuir, 2008 - ACS PublicationsSessile liquid drops are predicted to deform an elastic surface onto which they are placed
because of the combined action of the liquid surface tension at the periphery of the drop and
the capillary pressure inside the drop. Here, we show for the first time the in situ ...R Pericet-Camara, GK Auernhammer, K Koynov… - Soft Matter, 2009 - pubs.rsc.orgA sessile droplet can deform the surface of a soft solid not only with its weight. The surface
tension pulls up a ridge at the perimeter of the drop, and the capillary pressure embosses a
quasi-spherical dimple underneath the drop. This holds for the case of a bulk solid. ...
Construction of redispersible polypyrrole core–shell nanoparticles for application in polymer electronicsJ Wang, L Sun, K Mpoukouvalas… - Advanced …, 2009 - Wiley Online LibraryMaterials scientists refer to the bottom-up approach when they construct functional materials
via the following five steps:(i) planning and design of individual objects with desired
functionalities;(ii) preparation of these objects in the laboratory;(iii) assembly of the ...
- Course profiles
- WP 1: Experimental investigation on dynamic wetting of soluble or deformable substrates, Recruitment strategy and gender balance, Research, Communication Tools, Discussion forum