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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.7b00725
|2 doi
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|a pubmed24n0909.xml
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|a (DE-627)NLM272738166
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|a (NLM)28594186
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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 |
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|a Isabettini, Stéphane
|e verfasserin
|4 aut
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| 245 |
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|a Methods for Generating Highly Magnetically Responsive Lanthanide-Chelating Phospholipid Polymolecular Assemblies
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|c 2017
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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 16.07.2018
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|a Date Revised 16.07.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Mixtures of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) and its lanthanide ion (Ln3+) chelating phospholipid conjugate, 1,2-dimyristoyl-sn-glycero-3-phospho-ethanolamine-diethylene triaminepentaacetate (DMPE-DTPA), assemble into highly magnetically responsive polymolecular assemblies such as DMPC/DMPE-DTPA/Ln3+ (molar ratio 4:1:1) bicelles. Their geometry and magnetic alignability is enhanced by introducing cholesterol into the bilayer in DMPC/Cholesterol/DMPE-DTPA/Ln3+ (molar ratio 16:4:5:5). However, the reported fabrication procedures remain tedious and limit the generation of highly magnetically alignable species. Herein, a simplified procedure where freeze thawing cycles and extrusion are replaced by gentle heating and cooling cycles for the hydration of the dry lipid film was developed. Heating above the phase transition temperature Tm of the lipids composing the bilayer before cooling back below the Tm was essential to guarantee successful formation of the polymolecular assemblies composed of DMPC/DMPE-DTPA/Ln3+ (molar ratio 4:1:1). Planar polymolecular assemblies in the size range of hundreds of nanometers are achieved and deliver unprecedented gains in magnetic response. The proposed heating and cooling procedure further allowed to regenerate the highly magnetically alignable DMPC/Cholesterol/DMPE-DTPA/Ln3+ (molar ratio 16:4:5:5) species after storage for one month frozen at -18 °C. The simplicity and viability of the proposed fabrication procedure offers a new set of highly magnetically responsive lanthanide ion chelating phospholipid polymolecular assemblies as building blocks for the smart soft materials of tomorrow
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Baumgartner, Mirjam E
|e verfasserin
|4 aut
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|a Reckey, Pernille Q
|e verfasserin
|4 aut
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| 700 |
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|a Kohlbrecher, Joachim
|e verfasserin
|4 aut
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| 700 |
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|a Ishikawa, Takashi
|e verfasserin
|4 aut
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| 700 |
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|a Fischer, Peter
|e verfasserin
|4 aut
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| 700 |
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|a Windhab, Erich J
|e verfasserin
|4 aut
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| 700 |
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|a Kuster, Simon
|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 33(2017), 25 vom: 27. Juni, Seite 6363-6371
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:33
|g year:2017
|g number:25
|g day:27
|g month:06
|g pages:6363-6371
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|u http://dx.doi.org/10.1021/acs.langmuir.7b00725
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