Linked Life Data

7978267

Source:http://linkedlifedata.com/resource/pubmed/id/7978267

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-12-28
pubmed:abstractText
Polyacrolein microspheres covalently coupled onto solid surfaces, e.g., glass, silicon crystals, and polystyrene, have been prepared and characterized. These surfaces were synthesized by derivatization of the substrate surfaces with SiCl3(CH2)3CN or Si(OEt)3-(CH2)4NH2. The terminal nitrile groups were then reduced to primary amine groups. Polyacrolein microspheres of various diameters (0.08 and 0.4 microns) were then covalently bound in a monolayer structure to the modified surfaces. This binding of the microspheres to the derivatized surfaces is achieved via polyvalent Schiff-base bonds formed by the interaction between aldehyde groups of the microspheres and omega-primary amine groups of the modified surfaces. Residual amine groups were blocked with acetic acid N-hydroxysuccinimide ester. The residual aldehyde groups of the immobilized microspheres can then be used for covalent binding of amino ligands, e.g., proteins, in a single step and at physiological pH (or any other desired pH). The potential use of the immobilized polyacrolein microsphere surfaces for diagnostics has been demonstrated by determination of alpha 1-antitrypsin in human serum with trypsin bound to the immobilized microspheres. The comparison between this new method for the determination of alpha 1-antitrypsin and the routine methods is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0003-2697
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
220
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
257-67
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Synthesis, characterization, and use of immobilized polyacrolein microspheres in diagnostics: a model determination of alpha 1-antitrypsin in human serum.
pubmed:affiliation
Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't