Elastic precursor of the transformation from glycolipid-nanotube to -vesicle

Details Elastic precursor of the transformation from glycolipid-nanotube to -vesicle Elastic precursor of the transformation from glycolipid-nanotube to -vesicle

2006-04-03

arxiv.org/abs/cond-mat/0604033v1

Journal of Physics: Condensed Matter, vol. 18, p. 3089 (2006)

Physics

Condensed Matter

Soft Condensed Matter

9 pages, 6 figures

Scientific paper

10.1088/0953-8984/18/11/014

By the combination of optical tweezer manipulation and digital video microscopy, the flexural rigidity of single glycolipid "nano" tubes has been measured below the transition temperature at which the lipid tubules are transformed into vesicles. Consequently, we have found a clear reduction of the rigidity obviously before the transition as temperature increasing. Further experiments of infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC) have suggested a microscopic change of the tube walls, synchronizing with the precursory softening of the nanotubes.

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