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While the sensor has only worked for the herpes virus, the researchers hope to soon demonstrate it for other viruses in order to make it widely applicable. To detect the SARS, HIV, or bird-flu virus, the researchers would have to attach antibodies specific to those viruses on the light channel. By attaching different antibodies on different light channels, the same sensor could detect multiple diseases.
Detecting various viruses with this device shouldn't be a major hurdle, says David Gottfried, a biosensor researcher at the Georgia Tech Research Institute. Until now, no one has demonstrated a fast, portable sensor that can be used to detect viral diseases on-site. "This is one of the first demonstrations of a biosensor technique that could be [practical] for viruses, and it has the sensitivity required for early detection," Gottfried says.
Ymeti says that the goal is to have a small microfluidics device that can test for different diseases simultaneously. He expects such a prototype to be ready within the next two years.
Perhaps, nucleic acid binding would be useful and stable and eliminate some of the problems with antibody detection of more unstable proteins?
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sbabinchak
4 Comments
Idea
If a sensor can be made that uses antibodies to attach specific viruses for detection, why can't a larger version be built that can be attached to a dialysis type machine to "filter out" the target virus?
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twgpk
1 Comment
Re: Idea
in addition to antibodies add some static electric charge and attract the antigen-antibody complex
TWGPK
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