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From Hollow Shells to Artificial Cells: Biointerface Engineering on Polyelectrolyte Capsules

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Biomimetic composites can be fabricated by coating hollow polyelectrolyte capsules with biological interfaces such as a phospholipid membrane and proteins. Polyelectrolyte capsules have been templated applying the Layer-by-Layer technique of polyelectrolyte assembled on decomposable cores, which are destroyed after the assembly of the polyelectrolyte multilayer. Phospholipid vesicles of 200–300 nm size are spreaded on the capsule wall forming a continuous lipid membrane. Further functionalisation of the outer capsule wall can be achieved with fused virions and recrystallised S-layers. Compartimentation of the capsule interior with lipid vesicles has been possible by using a solvent exchange method. The functionalisation of the outer capsule surface with biomolecules, together with the creation of internal compartments in the capsule, open new nanobiotechnological challenges towards the fabrication of artificial cells.


Document Type: Research Article


Publication date: August 1, 2006

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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