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@ARTICLE{Papagiannopoulos:890355,
author = {Papagiannopoulos, Aristeidis and Pippa, Natassa and
Demetzos, Costas and Pispas, Stergios and Radulescu, Aurel},
title = {{L}amellarity and size distributions in mixed
{DPPC}/amphiphilic poly(2-oxazoline) gradient copolymer
vesicles and their temperature response},
journal = {Chemistry and physics of lipids},
volume = {234},
issn = {0009-3084},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2021-00900},
pages = {105008},
year = {2021},
abstract = {Mixed liposomes of dipalmitoylphosphatidylcholine (DPPC)
and gradient (pseudodiblock)
poly(2-methyl-2-oxazoline)-grad-poly(2-phenyl-2-oxazoline)
(MPOx) copolymers are investigated by small angle neutron
scattering (SANS). All experimental data, from different
phospholipid-copolymer compositions, concentrations and
temperatures are fitted with one model. This model allows
the determination of the separate contributions from
vesicular populations of different lamellarity and size.
MPOx copolymers are proved to modify both the size and
lamellarity of DPPC liposomes. The gradient copolymer with
higher hydrophilic content induces shrinkage of the uni- and
bi-lamellar DPPC vesicles. The copolymer with lower
hydrophilic content causes dramatic changes on the
lamellarity of DPPC vesicles by the formation of
hexa-lamellar vesicles. The tendency of multi-lamellar
vesicles to transform into uni-lamellar ones as temperature
increases is more pronounced in the presence of the
copolymers. These findings may have direct implications on
the drug loading and release properties of liposomes and
their interactions with cells.},
cin = {JCNS-FRM-II / MLZ / JCNS-1 / JCNS-4},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-4-20201012},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4)},
pid = {G:(DE-HGF)POF4-6G4},
experiment = {EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {33181095},
UT = {WOS:000604900300003},
doi = {10.1016/j.chemphyslip.2020.105008},
url = {https://juser.fz-juelich.de/record/890355},
}