Dresden 2009 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 12: POSTERS Magnetic Soft Matter

CPP 12.1: Poster

Dienstag, 24. März 2009, 14:00–16:30, P3

Interaction between rotating anisotropic paramagnetic doublets at Oil-Water Interface and in the bulk — •nebojša ćasić¹, pietro tierno², and thomas fischer³ — ¹Institut für Experimentalphysik V, Universität Bayreuth, Bayreuth, Germany — ²Department de Quimica Fisica, Universitat de Barcelona, Barcelona, Spain — ³Institut für Experimentalphysik V, Universität Bayreuth, Bayreuth, Germany

Optical microscopy is employed for studying hydrodynamic interactions between rotating anisotropic paramagnetic doublets in the bulk and at the oil-water interface. Anisotropic rotors are formed by linking two paramagnetic colloidal particles with two complementary sequences of single stranded DNA. An external precessing magnetic field induces rotation of the doublet.