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Title: Detection of bioagents using a shear horizontal surface acoustic wave biosensor

A biosensor combining the sensitivity of surface acoustic waves (SAW) generated at a frequency of 325 MHz with the specificity provided by antibodies and other ligands for the detection of viral agents. In a preferred embodiment, a lithium tantalate based SAW transducer with silicon dioxide waveguide sensor platform featuring three test and one reference delay lines was used to adsorb antibodies directed against Coxsackie virus B4 or the negative-stranded category A bioagent Sin Nombre virus (SNV). Rapid detection of increasing concentrations of viral particles was linear over a range of order of magnitude for both viruses, and the sensor's selectivity for its target was not compromised by the presence of confounding Herpes Simplex virus type 1 The biosensor was able to delect SNV at doses lower than the load of virus typically found in a human patient suffering from hantavirus cardiopulmonary syndrome (HCPS).
Inventors:
; ; ; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1130065
Assignee:
STC.UNM (Albuquerque, NM); Sandia National Laboratories (Albuquerque, NM) SNL-A
Patent Number(s):
8,709,791
Application Number:
12/069,284
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2008 Feb 08
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

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