Linked Life Data

8959266

Source:http://linkedlifedata.com/resource/pubmed/id/8959266

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1997-3-28
pubmed:abstractText
The fiberoptic biosensor with tapered optical probes has been developed to perform rapid and sensitive fluoroimmunoassays. A number of assays for biologic analytes were developed using a laboratory breadboard device that employed a large, 514 nm argon ion laser. These assays, with limits of detection of 5-50 ng/ml for protein antigens, showed promise for clinical use because of their demonstrated lack of matrix effects from plasma, seru, or blood. However, such a large device was impractical for on-site diagnostics, so a new, portable, multichannel biosensor was developed. To test this new biosensor, which uses 635 nm laser diodes, the assays were converted to use the cyanine dye, Cy5. The detection antibodies were labeled with Cy5 and assays performed to detect the F1 antigen of Yersinia pestis and the protective antigen of Bacillus anthracis. The limit of detection was found to improve by a factor of 10 for each assay. The portable biosensor was then evaluated in a blind test containing F1 antigen spiked into 30 of 173 serum samples. One hundred percent detection was achieved for samples with 100 ng/ml or more F1 antigen, with a specificity of 88%.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1058-2916
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
942-6
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:articleTitle
Assay development for a portable fiberoptic biosensor.
pubmed:affiliation
Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC 20375-5348, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.