Berlin 2005 – wissenschaftliches Programm
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CPP: Chemische Physik und Polymerphysik
CPP 9: SYMPOSIUM: Polymer networks and beyond: From molecular structure to materials and biological functions POSTER
CPP 9.3: Poster
Samstag, 5. März 2005, 16:45–18:45, Poster TU D
Bionanoparticles at Fluid Interfaces: Assembly, Crosslinking and Ultrathin Membranes — •Alexander Böker1, Yao Lin2, Heiko Zettl1, Philippe Carl3, Andreas Fery3, Su Long4, Qian Wang4, and Thomas P. Russell2 — 1Lehrstuhl für Physikalische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany — 2Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA 01003, USA — 3Max Planck Institut für Kolloide und Grenzflächen, 14424 Potsdam, Germany — 4Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
We report on an approach to fabricate nanoporous, functional membranes for encapsulation, delivery, and sensing by self-assembly of bionanoparticles. Here, we use horse spleen ferritin/HSF and cow pea mosaic virus/CPMV as building blocks for the desired materials. Fluid interfaces as found in oil-water emulsions serve as templates to guide the particle self-assembly, followed by crosslinking of the three-dimensional constructs. We studied the systems with respect to their self-assembly dynamics and the structures formed at the interface, using a pendant drop tensiometer. The nanometer-thin membranes formed after crosslinking the particle assembly, were characterized using TEM, FE-SEM and AFM force spectroscopy.