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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la902287b
|2 doi
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|a pubmed24n0636.xml
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|a (DE-627)NLM190681543
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|a (NLM)19681628
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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 Cashion, Matthew P
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Gemini surfactant electrospun membranes
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 11.03.2010
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Our research demonstrates electrospun nonwoven fibrous scaffolds from a low molar mass gemini ammonium surfactant, N,N'-didodecyl-N,N,N',N'-tetramethyl-N,N'-ethanediyldiammonium dibromide (12-2-12). Cryogenic transmission electron microscopy (cryo-TEM) and solution rheological experiments revealed micellar morphological transitions of 12-2-12 in water and water:methanol (1:1 vol). The microstructure of 12-2-12 in water transitioned from entangled, cylindrical, threadlike micelles to branched threadlike micelles, and a viscoelastic, entangled, highly branched network of threadlike micelles with increasing concentration finally formed. In sharp contrast, the solution behavior of 12-2-12 in water:methanol produced a drastically different micellar microstructure compared to that in water, and the morphology transitioned from partitioned, globular micelles to overlapped micelles at an overlap concentration (C*) of 11 wt %. Electrospinning 12-2-12 from water did not produce fibers at any concentration; however, electrospinning 12-2-12 in water:methanol at concentrations greater than 2C* produced hydrophilic continuous fibers with diameters ranging from 0.9 to 7 microm. High surface area scaffolds with hydrophilic surfaces offer potential as charged controlled-release membranes, tissue engineering scaffolds, and coatings for biologically compatible devices
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Membranes, Artificial
|2 NLM
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|a Quaternary Ammonium Compounds
|2 NLM
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|a Solvents
|2 NLM
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|a Surface-Active Agents
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
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|a Methanol
|2 NLM
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| 650 |
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|a Y4S76JWI15
|2 NLM
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| 700 |
1 |
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|a Li, Xiaolin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Geng, Yan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hunley, Matthew T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Long, Timothy E
|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 26(2010), 2 vom: 19. Jan., Seite 678-83
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:26
|g year:2010
|g number:2
|g day:19
|g month:01
|g pages:678-83
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|u http://dx.doi.org/10.1021/la902287b
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