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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la500415u
|2 doi
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|a pubmed25n0789.xml
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|a (DE-627)NLM236905562
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|a (NLM)24684287
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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 Miao, Lei
|e verfasserin
|4 aut
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|a Superparamagnetic-oil-filled nanocapsules of a ternary graft copolymer
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|c 2014
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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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|a Date Completed 10.04.2015
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|a Date Revised 15.04.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Stearic and oleic acid-coated Fe3O4 nanoparticles were dispersed in decahydronaphthalene (DN). This oil phase was dispersed in water using ternary graft copolymer poly(glycidyl methacrylate)-graft-[polystyrene-ran-(methoxy polyethylene glycol)-ran-poly(2-cinnamoyloxyethyl methacrylate)] or PGMA-g-(PS-r-MPEG-r-PCEMA) to yield capsules. The walls of these capsules were composed of PCEMA chains that were soluble in neither water nor DN, and the DN-soluble PS chains stretched into the droplet phase and the water-soluble MPEG chains extended into the aqueous phase. Structurally stable capsules were prepared by photolyzing the capsules with UV light to cross-link the PCEMA layer. Both the magnetite particles and the magnetite-containing capsules were superparamagnetic. The sizes of the capsules increased as they were loaded with more magnetite nanoparticles, reaching a maximal loading of ~0.5 mg of ligated magnetite nanoparticles per mg of copolymer. But the radii of the capsules were always <100 nm. Thus, a novel nanomaterial--superparamagnetic-oil-filled polymer nanocapsules--was prepared. The more heavily loaded capsules were readily captured by a magnet and could be redispersed via shaking. Although the cross-linked capsules survived this capturing and redispersing treatment many times, the un-cross-linked capsules ruptured after four cycles. These results suggest the potential to tailor-make capsules with tunable wall stability for magnetically controlled release applications
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Magnetite Nanoparticles
|2 NLM
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|a Naphthalenes
|2 NLM
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|a Oils
|2 NLM
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|a Polymers
|2 NLM
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|a Stearic Acids
|2 NLM
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|a Oleic Acid
|2 NLM
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|a 2UMI9U37CP
|2 NLM
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|a stearic acid
|2 NLM
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|a 4ELV7Z65AP
|2 NLM
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|a decalin
|2 NLM
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|a 88451Q4XYF
|2 NLM
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| 700 |
1 |
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|a Liu, Feng
|e verfasserin
|4 aut
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1 |
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|a Lin, Shudong
|e verfasserin
|4 aut
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1 |
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|a Hu, Jiwen
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Guojun
|e verfasserin
|4 aut
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1 |
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|a Yang, Yang
|e verfasserin
|4 aut
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1 |
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|a Tu, Yuanyuan
|e verfasserin
|4 aut
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|a Hou, Chengmin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Fei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Meilong
|e verfasserin
|4 aut
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| 700 |
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|a Luo, Hongsheng
|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 1985
|g 30(2014), 14 vom: 15. Apr., Seite 3996-4004
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:30
|g year:2014
|g number:14
|g day:15
|g month:04
|g pages:3996-4004
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|u http://dx.doi.org/10.1021/la500415u
|3 Volltext
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|d 30
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|h 3996-4004
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