Adhesion: elastocapillary coalescence in wet hair.

作者: José Bico , Benoît Roman , Loïc Moulin , Arezki Boudaoud

DOI: 10.1038/432690A

关键词:

摘要: We investigated why wet hair clumps into bundles by dunking a model brush of parallel elastic lamellae perfectly wetting liquid. As the is withdrawn, pairs aggregate successively, forming complex hierarchical patterns that depend on balance between capillary forces and elasticity lamellae. This capillary-driven self-assembly flexible structures, which occurs in tarsi insects1 biomimetic adhesives2 but can also damage micro-electromechanical structures3,4,5,6 or carbon nanotube ‘carpets’6,7,8, represents new type coalescence process.

参考文章(11)
Fred Nilsson, Dynamic Fracture Mechanics ,(1990)
N. Chakrapani, B. Wei, A. Carrillo, P. M. Ajayan, R. S. Kane, Capillarity-driven assembly of two-dimensional cellular carbon nanotube foams Proceedings of the National Academy of Sciences of the United States of America. ,vol. 101, pp. 4009- 4012 ,(2004) , 10.1073/PNAS.0400734101
T. Eisner, D. J. Aneshansley, Defense by foot adhesion in a beetle (Hemisphaerota cyanea) Proceedings of the National Academy of Sciences of the United States of America. ,vol. 97, pp. 6568- 6573 ,(2000) , 10.1073/PNAS.97.12.6568
Toshihiko Tanaka, Mitsuaki Morigami, Nobufumi Atoda, Mechanism of Resist Pattern Collapse during Development Process Japanese Journal of Applied Physics. ,vol. 32, pp. 6059- 6064 ,(1993) , 10.1143/JJAP.32.6059
C. Y. Hui, A. Jagota, Y. Y. Lin, E. J. Kramer, Constraints on Microcontact Printing Imposed by Stamp Deformation Langmuir. ,vol. 18, pp. 1394- 1407 ,(2002) , 10.1021/LA0113567
A. E. Cohen, L. Mahadevan, Kinks, rings, and rackets in filamentous structures. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 100, pp. 12141- 12146 ,(2003) , 10.1073/PNAS.1534600100
C.H. Mastrangelo, C.H. Hsu, Mechanical stability and adhesion of microstructures under capillary forces. I. Basic theory IEEE\/ASME Journal of Microelectromechanical Systems. ,vol. 2, pp. 33- 43 ,(1993) , 10.1109/84.232593
A. K. Geim, S. V. Dubonos, I. V. Grigorieva, K. S. Novoselov, A. A. Zhukov, S. Yu. Shapoval, Microfabricated adhesive mimicking gecko foot-hair. Nature Materials. ,vol. 2, pp. 461- 463 ,(2003) , 10.1038/NMAT917