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@ARTICLE{Peng:888189,
author = {Peng, Ke and Preisig, Natalie and Sottmann, Thomas and
Stubenrauch, Cosima},
title = {{F}ormulation of {G}elled {N}on-toxic {B}icontinuous
{M}icroemulsions {S}tabilized by {H}ighly {E}fficient
{A}lkanoyl {M}ethylglucamides},
journal = {Langmuir},
volume = {36},
number = {42},
issn = {1520-5827},
address = {Washington, DC},
publisher = {ACS Publ.},
reportid = {FZJ-2020-04751},
pages = {12692 - 12701},
year = {2020},
abstract = {Gelled non-toxic bicontinuous microemulsions have a great
potential for transdermal drug delivery as the microemulsion
facilitates the solubilization of both hydrophilic and
hydrophobic drugs, while the gel network provides mechanical
stability and thus an easy application on the skin. In our
previous study, we formulated a gelled non-toxic
bicontinuous microemulsion: we gelled the system H2O – IPM
– Plantacare 1200 UP (C12G1.4) – 1,2-octanediol with the
low molecular weight organogelator
1,3:2,4-dibenzylidene-D-sorbitol (DBS). However, a large
amount of Plantacare 1200 UP (12 $wt.\%)$ is needed to form
a bicontinuous microemulsion. To solve this problem, we
studied a new class of surfactants, namely alkanoyl
methylglucamides (MEGA), which has been rarely used for the
formulation of microemulsions. The phase behavior of
MEGA-8/10, MEGA-12/14-PC and MEGA-12/14-HC was compared with
that of alkyl polyglucosides. We found that even with 2
$wt.\%$ MEGA-12/14-HC a bicontinuous microemulsion can be
formed, which is 1/6 of the amount of Plantacare 1200 UP.
The bicontinuous microstructure of the non-toxic
microemulsion H2O – IPM – MEGA-12/14-HC –
1,2-octanediol was confirmed by small-angle neutron
scattering (SANS). Furthermore, the phase boundaries
remained unchanged when gelled by DBS. The rheological
properties of the gel were studied by oscillatory shear
rheometry. Finally, FFEM images show the coexistence of gel
fibers and bicontinuous oil and water domains. These results
suggest that the new gelled non-toxic bicontinuous
microemulsion is an orthogonal self-assembled system.},
cin = {JCNS-FRM-II / JCNS-1 / MLZ},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-588b)4597118-3},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6G15 - FRM II / MLZ (POF3-6G15)},
pid = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
experiment = {EXP:(DE-MLZ)KWS1-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {33064496},
UT = {WOS:000586785000026},
doi = {10.1021/acs.langmuir.0c02314},
url = {https://juser.fz-juelich.de/record/888189},
}