Mechanical properties of organic nanofibers.
Small
; 2(5): 660-6, 2006 May.
Article
en En
| MEDLINE
| ID: mdl-17193104
ABSTRACT
Intrinsic elastic and inelastic mechanical properties of individual, self-assembled, quasi-single-crystalline para-hexaphenylene nanofibers supported on substrates with different hydrophobicities are investigated as well as the interplay between the fibers and the underlying substrates. We find from atomic-force-microscopy-based rupture experiments a rupture shear stress of about 2 x 10(7) Pa for an individual fiber. Deflecting a nanofiber suspended across a gap results in a Young's modulus of 0.65 GPa. Translational motion of intact nanofibers across the surface is demonstrated for fibers on a silicon substrate with a low-adhesion coating, whereas such motion on a noncoated substrate is limited to very short (sub-micrometer) nanofiber pieces due to strong adhesive forces.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Compuestos Orgánicos
/
Nanotecnología
/
Nanotubos
/
Nanoestructuras
Idioma:
En
Revista:
Small
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2006
Tipo del documento:
Article
País de afiliación:
Dinamarca