Linked Life Data

21105674

Source:http://linkedlifedata.com/resource/pubmed/id/21105674

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
24
pubmed:dateCreated
2010-12-15
pubmed:abstractText
This paper reports a novel protocol consisting of the thermomodulated electrokinetic enrichment, elution, and separation of charged species based upon a thermoswitchable swelling-shrinking property of a poly(N-isopropylacrylamide), PNIPAAm, hydrogel. A 0.2-1 mm long PNIPAAm hydrogel plug was photopolymerized inside a glass microfluidic channel to produce a composite device consisting of the PNIPAAm hydrogel plug and the glass microchannel (abbreviated as plug-in-channel). After voltage was applied to the composite device, anions, such as FITC, could be enriched at the cathodic end of the PNIPAAm plug when the temperature of the plug was kept below its lower critical solution temperature (LCST, ?32 °C). The concentrated analytes could then be eluted by electroosmotic flow when the temperature of the plug was heated above the LCST. The mechanism of the thermoswitchable ion enrichment/elution process was studied with the results presented. The analytical potential of the composite device was demonstrated for the temperature-modulated preconcentration, elution, and separation of FITC-labeled amino acids.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1520-6882
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
82
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
10030-6
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Thermoswitchable electrokinetic ion-enrichment/elution based on a poly(N-isopropylacrylamide) hydrogel plug in a microchannel.
pubmed:affiliation
The Institute of Micro-analytical Systems, Department of Chemistry, Zhejiang University, Zijin'gang Campus, Hangzhou 310058, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't