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Pulling nanotubes from supported bilayers
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Armond, Jonathan W., Macpherson, Julie V. and Turner, Matthew S. (2011) Pulling nanotubes from supported bilayers. Langmuir, Vol.27 (No.13). pp. 8269-8274. doi:10.1021/la200639b ISSN 0743-7463.
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Official URL: http://dx.doi.org/10.1021/la200639b
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 | ||||
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| Subjects: | Q Science > QC Physics Q Science > QH Natural history > QH301 Biology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Research Centres > Molecular Organisation and Assembly in Cells (MOAC) Faculty of Science, Engineering and Medicine > Science > Physics |
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| 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: | 2011 | ||||
| Dates: |
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| Volume: | Vol.27 | ||||
| Number: | No.13 | ||||
| Page Range: | pp. 8269-8274 | ||||
| DOI: | 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) |
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