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|a eng
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|a Goubault, Cécile
|e verfasserin
|4 aut
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|a Self-assembled magnetic nanowires made irreversible by polymer bridging
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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
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|a Date Completed 28.07.2006
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|a Date Revised 15.11.2006
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|a published: Print
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|a Citation Status MEDLINE
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|a In this letter, we investigate the mechanism of formation of a recently discovered new type of colloid, irreversible flexible chains of magnetic particles. The chain formation mechanism is based on magnetically induced bridging by adsorbed polymers, and we investigate here the associated phase diagrams, considering both thermodynamic and kinetic aspects. This phase diagram is the consequence of a balance between entropic repulsion between polymer layers at the particles surfaces, depletion forces pushing the particles together, and a short-range attractive force developing when polymers can bridge two particles. We end up with a very simple protocol allowing the formation of long, extremely regular chains, which can find numerous applications in chemistry and biology. The perspectives for the development of a new field of "macrocolloidal chemistry" are discussed
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|a Letter
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|a Research Support, Non-U.S. Gov't
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|a Colloids
|2 NLM
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|a Polymers
|2 NLM
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|a Leal-Calderon, Fernando
|e verfasserin
|4 aut
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|a Viovy, Jean-Louis
|e verfasserin
|4 aut
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|a Bibette, Jérôme
|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), 9 vom: 26. Apr., Seite 3725-9
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|x 1520-5827
|7 nnns
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