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231223s2005 xx ||||| 00| ||eng c |
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|a (NLM)15641846
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Yui, Hiroharu
|e verfasserin
|4 aut
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|a Local environment and property of water inside the hollow cylinder of a lipid nanotube
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|c 2005
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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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|b nc
|2 rdacarrier
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|a Date Completed 28.07.2006
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|a Date Revised 24.11.2016
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|a published: Print
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|a Citation Status MEDLINE
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|a We investigated the local environment of water confined inside the hollow cylinder of lipid nanotubes (LNTs) by time-resolved fluorescent measurements and attenuated-total-reflectance infrared (ATR-IR) spectroscopy. The LNT was obtained by self-assembly of cardanyl glucosides in water at room temperature and had an open-ended cylindrical nanospace with a diameter of 10-15 nm, a length of 10-100 microm, and hydrophilic inner and outer surfaces. We introduced a fluorescent probe of 8-anilinonaphthalene-1-sulfonate into the confined water and observed an extremely slow dynamic Stokes shift with a correlation time of 1.26 ns, which was 2-3 orders of magnitude longer than that of bulk-phase water. From the peak shift of the fluorescent spectrum, the local solvent polarity (ET(30)) of the confined water was estimated as 50 kcal/mol, which is 20% lower than that in bulk water. ATR-IR measurements showed that the hydrogen-bond network of water inside the LNT was more developed than that in bulk water at room temperature, which is in contrast to the water in other self-assembled confined geometries, such as Aerosol-OT (AOT) reversed micelles
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|a Journal Article
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|a Anilino Naphthalenesulfonates
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|a Fluorescent Dyes
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|a Glucosides
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|a Lipids
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|a Water
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|a 059QF0KO0R
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|a 1-anilino-8-naphthalenesulfonate
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|a Guo, Yanli
|e verfasserin
|4 aut
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|a Koyama, Kana
|e verfasserin
|4 aut
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|a Sawada, Tsuguo
|e verfasserin
|4 aut
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|a John, George
|e verfasserin
|4 aut
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|a Yang, Bo
|e verfasserin
|4 aut
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|a Masuda, Mitsutoshi
|e verfasserin
|4 aut
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|a Shimizu, Toshimi
|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 21(2005), 2 vom: 18. Jan., Seite 721-7
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:21
|g year:2005
|g number:2
|g day:18
|g month:01
|g pages:721-7
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