Nevertheless, these mini brushes are extremely stable, the researchers emphasize. Unlike previously used bristle materials such as animal hair, synthetic polymers or metal wires, the carbon fibers are characterized by high strength, elasticity and thermal conductivity. The applications of these brushes are diverse, the scientists report: not only can they clear tiny cracks and fissures from the nanodust, they are also suitable for painting: Using a three-row brush, which was turned by a motor, the researchers were able to find the inside of mini capillaries paint evenly.
To produce the nanoborsten, the scientists use the so-called chemical vapor deposition method. The researchers can grow the Nanoborsten locally limited directly at the top of the brush handle: The starting material is stored? Layer by layer ? out of the vapor phase at the top of the growing bristles.
Pulickel Ajayan (Rensselaer Polytechnic Institute, Troy) et al .: Nature Materials, Online Preliminary Publication, DOI: 10.1038 / nmat1415 Displayddp / science.de? Stefanie Offermann