Graphene Biosensor Detects Stomach Cancer Bacteria

Graphene Biosensor Detects Stomach Cancer Bacteria
Jul-03-19
A graphene sensor within a microfluidic chip can detect bacteria at extremely low concentrations.

The biosensor was developed by a team from Osaka University, and takes advantage of graphene’s ability to detect slight physical forces on its surface. The sensor relies on a graphene component that has been coated with antibodies to attract the target bacteria, although these same antibodies block the signal to the graphene. However, the team then added a chemical that causes the bacteria to interact and produce a byproduct that slips through the antibody coating to the graphene surface—triggering electrical signals that indicate how much bacteria is in the sample droplet.

Graphene Biosensor Detects Stomach Cancer Bacteria


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[MEDGADGET.COM]
[RESOU.OSAKA-U.AC.JP]
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