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231223s2007 xx ||||| 00| ||eng c |
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|a (DE-627)NLM168518279
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|a (NLM)17311435
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Jiang, Yugui
|e verfasserin
|4 aut
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| 245 |
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|a Reversible self-organization of a UV-responsive PEG-terminated malachite green derivative
|b vesicle formation and photoinduced disassembly
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| 264 |
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 15.05.2007
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|a Date Revised 20.03.2007
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a This paper describes the assembly and disassembly of vesicles formed by a UV-responsive poly(ethylene glycol) terminated malachite green derivative. The UV-responsive amphiphile with both a hydrophobic malachite green group and a hydrophilic PEG group can self-organize into vesicles in water before UV irradiation. However, upon UV irradiation, the photochromic moiety can be ionized to its corresponding cation, leading to the disassembly of these vesicles. In addition, the cation can thermally recover its electrically neutral form, and the disassembled species can form vesicles reversibly on the basis of a thermal reverse reaction. The reverse reaction is temperature-controlled and can be speeded up by thermal treatment. By using various characterization techniques, e.g., transmission electron microscopy, dynamic light scattering, UV-visible spectroscopy, and NMR spectroscopy, we have confirmed that the vesicle structures can be formed, disassembled, and recovered by the above-mentioned treatments. It is anticipated greatly that this line of research may provide new insights into the mechanism behind stimuli-responsive formation and rupture of molecular assemblies, facilitating the design and synthesis of new surface active molecules for the fabrication of stimuli-responsive materials with designed functions
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|a Journal Article
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1 |
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|a Wang, Yapei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Ning
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhiqiang
|e verfasserin
|4 aut
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| 700 |
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|a Smet, Mario
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Xi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 23(2007), 7 vom: 27. März, Seite 4029-34
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:23
|g year:2007
|g number:7
|g day:27
|g month:03
|g pages:4029-34
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