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@ARTICLE{Khoshakhlagh:183570,
author = {Khoshakhlagh, Pooneh and Johnson, Raphael and Nawroth,
Thomas and Langguth, Peter and Schmueser, Lars and Hellmann,
Nadja and Decker, Heinz and Szekely, Noemi},
title = {{N}anoparticle structure development in the
gastro-intestinal model fluid {F}a{SSIF} mod6.5 from several
phospholipids at various water content relevant for oral
drug administration},
journal = {European journal of lipid science and technology},
volume = {116},
number = {9},
issn = {1438-7697},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2014-06864},
pages = {1155 - 1166},
year = {2014},
abstract = {The characteristics of intestinal model fluids were
investigated at conditions, which simulate the passage from
the middle to the end of the duodenum. The formation and
decay of liposomes and micelles in model bile fluids were
studied, because of their role as an intermediate host for
the resolution and uptake of hydrophobic drugs (BCS classes
II, IV). The conditions, which may influence the formation
of these nanoparticulate intermediates were studied, i.e.,
the lipid composition of the bile, the preparation method,
the time of the passage through the modelled duodenum
segment and the concentration, which results from the
variable dilution of the bile by mixing with the transfer
medium representing the fluid arriving from the stomach. The
variation of the lecithin entity revealed an equivalence of
Egg–lecithin of a high purity $(99\%)$ with its main
component 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine
POPC, while 1,2-di-oleoyl-sn-glycero-3-phosphocholine DOPC
resulted in a slight delay of the micelle-liposome
conversion. The FeSSIF preparation method was best with the
sequential-film method, while the bile-film method yielded
comparable results; the shake method showed a slightly
different kinetics of the nanoparticle conversion. The time
and concentration dependence of the formation and decay of
lipidic nanoparticles indicates that these strongly depend
on the passage time (speed) and bile dilution rate. The
corresponding physiological conditions at healthy persons
may vary in vivo individually and due to diseases. The
studied conditions cover typical physiological conditions,
which should be taken into consideration in the exploration
of in vitro tests of formulations of hydrophobic
drugs.Formation and decay of liposomes and micelles from
bile in the duodenum was studied, due to their role as an
intermediate for resolution and uptake of hydrophobic drugs
(BCS II, IV). The physiological conditions studied may vary
individually and due to diseases.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1 /
ICS-1},
ddc = {660},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)ICS-1-20110106},
pnm = {54G - JCNS (POF2-54G24)},
pid = {G:(DE-HGF)POF2-54G24},
experiment = {EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000343000600008},
doi = {10.1002/ejlt.201400066},
url = {https://juser.fz-juelich.de/record/183570},
}