Observation of size-dependent melting in lipid nanoparticles

Citation
T. Unruh et al., Observation of size-dependent melting in lipid nanoparticles, J PHYS CH B, 103(47), 1999, pp. 10373-10377
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
103
Issue
47
Year of publication
1999
Pages
10373 - 10377
Database
ISI
SICI code
1520-6106(19991125)103:47<10373:OOSMIL>2.0.ZU;2-G
Abstract
The differential scanning calorimetry thermograms of suspensions of trimyri stin nanoparticles in the stable P-polymorph display several melting events . Particle thickness distributions obtained by analysis of difference X-ray diffraction patterns recorded during melting reveal that these discrete ev ents correspond to the melting of classes of particles differing in thickne ss by only one unit cell. A large increase in lattice constants with decrea sing particle thickness was observed, indicating that classical surface the rmodynamics is not applicable to particles consisting of only a few molecul ar layers.