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@ARTICLE{Bhalani:1032175,
author = {Bhalani, Deep and Sharma, Anish Kumar and Kuperkar, Ketan
and Singla, Pankaj and Ray, Debes and Aswal, Vinod K. and
Pillai, Sadafara A.},
title = {{D}enaturants and {S}olutol® {HS}15 in ophthalmic
formulations: {I}nsights into their combined effects},
journal = {Journal of molecular liquids},
volume = {414},
issn = {0167-7322},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2024-06045},
pages = {126289 -},
year = {2024},
abstract = {In the field of ophthalmology, significant attention is
dedicated to developing micellar carriers to enhance ocular
drug delivery. Urea is a well-known denaturant and has been
used as an excipient in several ocular formulations due to
its efficacy as an ocular hypotensive agent. The presence of
urea as an excipient may influence the characteristics of
the micellar nanocarrier in the formulation and needs to be
investigated. Solutol® HS15, a wellknown nonionic
surfactant and a commonly used
nanocarrierindrugformulations, enhances the solubilization
and stability of ocular drugs. However, a detailed study of
its interaction with various pharmaceutical excipients is
still lacking. With this intention, the present study
focuses on comprehending the interaction between Solutol®
HS15 micelles with urea and its derivatives. Here, we
present a detailed analysis on the influence of urea and its
derivatives (methylurea, dimethylurea) on Solutol® HS15
using small-angle neutron scattering (SANS), dynamic light
scattering (DLS), and cloud point (CP) measurements. The
presence of urea and its derivatives strongly affects the
CP, leading to a significant increase in its values when
urea derivatives are present. Additionally, the SANS and DLS
results also indicate a significant decrease in micellar
size, suggesting demicellization. The observed effects of
urea derivatives on Solutol® HS15 micelles underscore the
importance of considering solventsurfactant interactions in
understanding the behavior of surfactant based systems. This
research will provide greater insight into the interactions
between urea and its derivatives and Solutol® HS15, which
will assist in understanding the morphology and size
distribution of surfactant micelles for drug delivery
applications.},
cin = {IBI-4},
ddc = {540},
cid = {I:(DE-Juel1)IBI-4-20200312},
pnm = {5241 - Molecular Information Processing in Cellular Systems
(POF4-524) / DFG project G:(GEPRIS)495795796 - Das
Phasenverhalten von Proteinlösungen in elektrischen Feldern
(495795796)},
pid = {G:(DE-HGF)POF4-5241 / G:(GEPRIS)495795796},
typ = {PUB:(DE-HGF)16},
doi = {10.1016/j.molliq.2024.126289},
url = {https://juser.fz-juelich.de/record/1032175},
}