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ID 46214
creator
Shimokawa, Ryo
subject
Liposomes
Drug delivery
Photochemistry
Host-guest system
Dimerization
NDC
Chemistry
abstract
In a drug-delivery system using liposomes, the use of guest molecules bearing hydrophilic moieties results in some leakage from lipid membranes. We suppressed the leakage of coumarins (used as model guest molecules in a drug-delivery system) from lipid membranes by photodimerization at 365 nm. The reason for this phenomenon could be ascribed to an increase in the hydrophobicity of the dimers of the coumarins. The formation of the dimers was detected by 1H NMR, UV-vis absorption, and mass spectra and the leakage percentages of the coumarins were determined by 1H NMR spectra based on the peak intensities. In contrast, when the dimer reverted to a monomer by ultraviolet (254 nm) irradiation, the resulting monomer was released from liposomes.
description
This work was supported by a JSPS KAKENHI Grant-in-Aid for Scientific Research (B) (Grant No. JP16H04133) and a Grant-in-Aid for Challenging Exploratory Research (Grant No. JP16K13982).
journal title
Journal of Photochemistry and Photobiology B: Biology
volume
Volume 185
start page
235
end page
240
date of issued
2018-08
publisher
Elsevier B.V.
issn
1011-1344
publisher doi
pubmed id
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2018 Elsevier B.V.
This manuscript version is made available under the CC-BY-NC-ND 4.0 license. http://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
department
Graduate School of Engineering
note
Post-print version/PDF may be used in an institutional repository after an embargo period of 24 months.