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Title: Light-operated mechanized nanoparticles
Authors: Stoddart, J. Fraser
Khashab, Niveen M.
Khatib, Hussam A.
Zink, Jeffrey I.
Ferris, Daniel P.
Zhao, Yanli
Keywords: DRNTU::Science::Biological sciences::Biochemistry
Issue Date: 2009
Source: Ferris, D. P., Zhao, Y. L., Khashab, N. M., Khatib, H. A., Stoddart, J. F., & Zink, J. I. (2009). Light-Operated Mechanized Nanoparticles. Journal of the American Chemical Society, 131(5), 1686-1688.
Series/Report no.: Journal of the American chemical society
Abstract: Mesoporous silica (MCM-41) nanoparticles modified by azobenzene derivatives, capable of storing small molecules and releasing them following light irradiation, have been fabricated and characterized. In the presence of the β-cyclodextrin and/or pyrene-modified β-cyclodextrin rings, the β-cyclodextrin and/or pyrene-modified β-cyclodextrin rings will thread onto the azobenzene-containing stalks and bind to trans-azobenzene units to form the pseudorotaxanes, thus sealing the nanopores and stopping release of the cargo. Upon irradiation, the isomerization of trans-to-cis azobenzene units leads to the dissociation of the β-cyclodextrin and/or pyrene-modified β-cyclodextrin rings from the stalks, thus opening the gates to the nanopores and releasing the cargo.
DOI: 10.1021/ja807798g
Rights: © 2009 American Chemical Society
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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