Photoresponsive Release from Azobenzene-Modified Single Cubic Crystal NaClSilica Particles
Joint Authors
Brinker, C. Jeffrey
Liu, Nanguo
Jiang, Ying-Bing
Assink, Roger A.
Jiang, Xingmao
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-02-21
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Civil Engineering
Abstract EN
Azobenzene ligands were uniformly anchored to the pore surfaces of nanoporous silica particles with single crystal NaCl using 4-(3-triethoxysilylpropylureido)azobenzene (TSUA).
The functionalization delayed the release of NaCl significantly.
The modified particles demonstrated a photocontrolled release by trans/cis isomerization of azobenzene moieties.
The addition of amphiphilic solvents, propylene glycol (PG), propylene glycol propyl ether (PGPE), and dipropylene glycol propyl ether (DPGPE) delayed the release in water, although the wetting behavior was improved and the delay is the most for the block molecules with the longest carbon chain.
The speedup by UV irradiation suggests a strong dependence of diffusion on the switchable pore size.
TGA, XRD, FTIR, and NMR techniques were used to characterize the structures.
American Psychological Association (APA)
Jiang, Xingmao& Liu, Nanguo& Assink, Roger A.& Jiang, Ying-Bing& Brinker, C. Jeffrey. 2011. Photoresponsive Release from Azobenzene-Modified Single Cubic Crystal NaClSilica Particles. Journal of Nanomaterials،Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-472484
Modern Language Association (MLA)
Jiang, Xingmao…[et al.]. Photoresponsive Release from Azobenzene-Modified Single Cubic Crystal NaClSilica Particles. Journal of Nanomaterials No. 2011 (2011), pp.1-6.
https://search.emarefa.net/detail/BIM-472484
American Medical Association (AMA)
Jiang, Xingmao& Liu, Nanguo& Assink, Roger A.& Jiang, Ying-Bing& Brinker, C. Jeffrey. Photoresponsive Release from Azobenzene-Modified Single Cubic Crystal NaClSilica Particles. Journal of Nanomaterials. 2011. Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-472484
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472484