Blar i NTNU Open på forfatter "Mikkelsen, Alexander"
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Active structuring of colloidal armour on liquid drops
Dommersnes, Paul; Rozynek, Zbigniew; Mikkelsen, Alexander; Castberg, Rene; Kjerstad, Knut; Hersvik, Kjetil; Fossum, Jon Otto (Journal article; Peer reviewed, 2013)Adsorption and assembly of colloidal particles at the surface of liquid droplets are at the base of particle-stabilized emulsions and templating. Here we report that electrohydrodynamic and electro-rheological effects ... -
Ciprofloxacin intercalated in fluorohectorite clay: Identical pure drug activity and toxicity with higher adsorption and controlled release rate
Dos Santos, Éverton Carvalho; Rozynek, Zbigniew Jerzy; Hansen, Elisabeth Lindbo; Hartmann-Petersen, R; Klitgaard, RN; Løbner-Olesen, Anders; Michels, Leander; Mikkelsen, Alexander; Plivelic, Tomás S.; Bordallo, HN; Fossum, Jon Otto (Journal article; Peer reviewed, 2017)Different natural clay minerals, including halloysite, montmorillonite and kaolinite, have been proven to be efficient drug carriers providing for high and long lasting drug concentrations owing to their adsorption capacity ... -
Electric field nematic alignment of fluorohectorite clay particles in oligomeric matrices
Rozynek, Zbigniew; Castberg, Rene; Mikkelsen, Alexander; Fossum, Jon Otto (Journal article, 2013)We study the behavior of fluorohectorite synthetic clay particles dispersed in paraffin wax. We report wide-angle x-ray scattering related to electric-field-induced alignment of the embedded clay particles. The development ... -
Electric stress-induced slip lines in jammed particle monolayers
Mikkelsen, Alexander; Dommersnes, Paul Gunnar; Fossum, Jon Otto (Peer reviewed; Journal article, 2016)Drops fully covered by particles, so called Pickering emulsion drops, are used to stabilize emulsions and are ideal templates for producing particles and advanced capsules. Recent studies show how electrohydrodynamic ... -
Electric-stress-induced Slip Lines in Jammed Particle Monolayers
Mikkelsen, Alexander; Dommersnes, Paul Gunnar; Fossum, Jon Otto (Journal article; Peer reviewed, 2016)Drops fully covered by particles, so called Pickering emulsion drops, are used to stabilize emulsions and are ideal templates for producing particles and advanced capsules. Recent studies show how electrohydrodynamic ... -
Electro-hydrodynamic propulsion of counter-rotating Pickering drops
Dommersnes, Paul Gunnar; Mikkelsen, Alexander; Fossum, Jon Otto (Journal article; Peer reviewed, 2016)Insulating particles or drops suspended in carrier liquids may start to rotate with a constant frequency when subjected to a uniform DC electric field. This is known as the Quincke rotation electro-hydrodynamic instability. ... -
Electroformation of Janus and patchy capsules
Rozynek, Zbigniew Jerzy; Mikkelsen, Alexander; Dommersnes, Paul; Fossum, Jon Otto (Journal article; Peer reviewed, 2014)Janus and patchy particles have designed heterogeneous surfaces that consist of two or several patches with different materials properties. These particles are emerging as building blocks for a new class of soft matter and ... -
Experimental Studies of Flow- and Electric Properties of Oil Droplets Including Suspended Clay Particles
Mikkelsen, Alexander (Master thesis, 2012)Experiments on oil droplets made of silicone oil and sodium-fluorohectorite (Na-Fh) clay particles suspended in castor oil were performed. The electric field (E-field)-induced structuring of clay particles placed inside ... -
Particle Assembly Guided by Electrohydrodynamics and Dielectrophoresis
Mikkelsen, Alexander (Doctoral thesis at NTNU;2016:121, Doctoral thesis, 2016)Norwegian: Vanlige utfordringer i forbindelse med oljeutvinning og produksjon av blant annet mat, medisin og kosmetikkprodukter er å hindre at dråper vokser sammen. Prøver man å blande to ikke-blandbare væsker (som ...