Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6 Pt 1
pubmed:dateCreated
2009-8-7
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.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jun
pubmed:issn
1539-3755
pubmed:author
pubmed:issnType
Print
pubmed:volume
79
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
060401
pubmed:year
2009
pubmed:articleTitle
Field-induced clearing in sphere-sphere and rod-sphere binary mixtures of charged colloidal particles.
pubmed:affiliation
Department of Chemistry, Biochemistry, and Medical Biotechnology, Università di Milano, Segrate, 20090 Milano, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't