Linked Life Data

21500841

Source:http://linkedlifedata.com/resource/pubmed/id/21500841

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
18
pubmed:dateCreated
2011-5-5
pubmed:abstractText
We present here an experimental, strictly one-dimensional rotational system, made by using single magnetic Janus particles in a static magnetic field. These particles were half-coated with a thin metallic film, and by turning on a properly oriented external static magnetic field, we monitor the rotational brownian motion of single particles, in solution, around the desired axis. Bright-field microscopy imaging provides information on the particle orientation as a function of time. Rotational diffusion coefficients are derived for one-dimensional rotational diffusion, both for a single rotating particle and for a cluster of four such particles. Over the studied time domain, up to 10 s, the variation of the angle of rotation is strictly brownian; its probability distribution function is gaussian, and the mean squared angular displacement is linear in time, as expected for free diffusion. Values for the rotational diffusion coefficients were also determined. Monte Carlo and hydrodynamic simulations agree well with the experimental results.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1520-5207
pubmed:author
pubmed:issnType
Electronic
pubmed:day
12
pubmed:volume
115
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5212-8
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Experimental system for one-dimensional rotational brownian motion.
pubmed:affiliation
Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.