Armond, Jonathan W., Macpherson, Julie V. and Turner, Matthew S. . (2011) Pulling nanotubes from supported bilayers. Langmuir, Vol.27 (No.13). pp. 8269-8274. ISSN 0743-7463

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Abstract

The force required to form a nanoscale tube from a supported lipid bilayer (SLB) by pulling was measured using an atomic force microscope (AFM). The equilibrium membrane shape during an AFM pulling experiment was calculated and used to derive a general force distance relationship for pulling a tube from an SLB. We compare these theoretical results with our experimental data and determine the tube radius, the force required to elongate the tube, and, consequently, the surface tension. For a dioleoylphosphatidylcholine (DOPC) SLB, the tension was found to be close to membrane rupture during the pulling experiment.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics Q Science > QH Natural history > QH301 Biology
Divisions:	Faculty of Science > Chemistry Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Nanotubes, Atomic force microscopy, Bilayer lipid membranes
Journal or Publication Title:	Langmuir
Publisher:	American Chemical Society
ISSN:	0743-7463
Official Date:	5 July 2011
Volume:	Vol.27
Number:	No.13
Page Range:	pp. 8269-8274
Identification Number:	10.1021/la200639b
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Advantage West Midlands (AWM) , European Regional Development Fund (ERDF), Engineering and Physical Sciences Research Council (EPSRC)
Grant number:	EP/E501311/1 (EPSRC)
URI:	http://wrap.warwick.ac.uk/id/eprint/38826

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