Nanomechanics of electrospun phospholipid fiber

Ana Carina Loureiro Mendes, Nikolaos Nikogeorgos, Seunghwan Lee, Ioannis S. Chronakis

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Abstract

Electrospun asolectin phospholipid fibers were prepared using isooctane as a solvent and had an average diameter of 6.1 +/- 2.7 mu m. Their mechanical properties were evaluated by nanoindentation using Atomic Force Microscopy, and their elastic modulus was found to be approximately 17.2 +/- 1MPa. At a cycle of piezo expansion-retraction (loading-unloading) of a silicon tip on a fiber, relatively high adhesion was observed during unloading. It is proposed that this was primarily due to molecular rearrangements at the utmost layers of the fiber caused by the indentation of the hydrophilic tip. The phospholipid fibers were shown to be stable in ambient conditions, preserving the modulus of elasticity up to 24 h. (c) 2015 AIP Publishing LLC.
Original languageEnglish
Article number223108
JournalApplied Physics Letters
Volume106
Issue number22
Number of pages4
ISSN0003-6951
DOIs
Publication statusPublished - 2015

Bibliographical note

Copyright 2015, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Applied Physics Letters 106 (2015) 223108) and may be found at http://scitation.aip.org/content/aip/journal/apl/106/22/10.1063/1.4922283.

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