Valeriy Luchnikov, Leonid lonov and Manfred Stamm Self-Rolled Polymer Tubes: Novel Tools for Microfluidics, Microbiology, and Drug-Delivery Systems Macromolecular Rapid Communications 32
Thin, bilayer polymer films roll-up spontaneously in selective solvents that cause preferential swelling of one of the components of the films. The phenomenon results in microtubes with diameters varying from several hundreds of nanometers to dozens of micrometers. It can be used for the design of microcapillaries with an engineered inner surface and for encapsulation and controlled release of microparticles.
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