Source:http://linkedlifedata.com/resource/pubmed/id/19658461
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6 Pt 1
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pubmed:dateCreated |
2009-8-7
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pubmed:abstractText |
Binary mixtures of larger and smaller colloids having charges of equal sign display unusual response to low-frequency electric fields. We show here that the previously reported negative torque acting on rodlike particles when in presence of a sea of smaller particles is accompanied by a field-induced clearing of the suspension. Measurements of transmitted intensity performed on mixtures of large (dilute) and small (semidilute) spherical particles indicate that such a clearing effect is universal and due to an anisotropic E2 -dependent redistribution of the small spheres around the large ones. We interpret this behavior as resulting from O(E2) electro-osmotic flows whose magnitude is greatly enhanced by the presence of the small particles.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
1539-3755
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
79
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
060401
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pubmed:year |
2009
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pubmed:articleTitle |
Field-induced clearing in sphere-sphere and rod-sphere binary mixtures of charged colloidal particles.
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pubmed:affiliation |
Department of Chemistry, Biochemistry, and Medical Biotechnology, Università di Milano, Segrate, 20090 Milano, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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