Finite-size effects in biomimetic smectic films

Harroun, T. A. ; Raghunathan, V. A. ; Pencer, J. ; Nieh, M.-P. ; Katsaras, J. (2004) Finite-size effects in biomimetic smectic films Physical Review E - Statistical, Nonlinear and Soft Matter Physics, 70 (6). 062902_1-062902_4. ISSN 1539-3755

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Official URL: http://pre.aps.org/abstract/PRE/v70/i6/e062902

Related URL: http://dx.doi.org/10.1103/PhysRevE.70.062902

Abstract

Thin stacks of lipid multibilayers supported on rigid silicon and mica substrates are found to exhibit finite-size effects. Using neutron diffraction we find that the repeat spacing (d) of stacks containing up to a few tens of bilayers depends on their thickness (D), with d increasing with decreasing D. Differences in d are larger in the low-temperature Lβ' phase consisting of rigid bilayers than in the high-temperature Lα phase where the bilayers are more flexible. Various scenarios that may be responsible for this counterintuitive observation are discussed.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:57500
Deposited On:27 Aug 2011 12:26
Last Modified:18 May 2016 08:51

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