Buckling instability of lipid tubules with multibilayer walls under local radial indentation
Abbreviated Journal Title
Phys. Rev. E
biomechanics; buckling; cellular biophysics; molecular biophysics; nanoindentation; proteins; self-assembly; ELASTIC PROPERTIES; PEPTIDE NANOTUBES; PROTEIN; TEMPERATURE; RELEASE; RIBBONS; MICROSTRUCTURES; MICROTUBULES; FABRICATION; DEPENDENCE; Physics, Fluids & Plasmas; Physics, Mathematical
The mechanical behavior of self-assembled lipid tubules is an important property which determines their suitability for technological applications. We study the instability of multibilayer lipid tubules (with wall thickness t and external radius R(ext)) beyond elastic response under local radial atomic force microscopy indentations. A discontinuity in force-distance curves associated with the buckling instability of lipid tubules is observed. The critical force at which lipid tubules undergo a buckling transition linearly scales as t/R(ext). In addition, a reduced critical buckling force is found to extend a distance of similar to 1 mu m from the end of lipid tubules.
Physical Review E
"Buckling instability of lipid tubules with multibilayer walls under local radial indentation" (2009). Faculty Bibliography 2000s. 2383.