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Biosensor detects brain tumors with less than a drop of blood

Biosensor detects brain tumors with less than a drop of blood

A brain tumor diagnosis may soon be as easy as a finger-prick blood test, thanks to a new biosensor that can detect even the smallest trace of the cancerous cells.

The nanosensor, developed by researchers at Washington University School of Medicine in St. Louis, uses magnetic particles to bind to and identify cancerous cells in a person’s blood.

In a new study published in the journal Nature Nanotechnology, the team reports that the biosensor can detect as few as 10 cancerous cells in a drop of blood.

What’s more, the sensor is able to distinguish between different types of cancer cells, which could help doctors tailor treatment to each patient’s individual disease.

The biosensor works by taking advantage of the fact that cancer cells often have more receptors for a protein called transferrin than healthy cells.

When the magnetic nanoparticles bind to transferrin, they change the shape of the protein, which the biosensor is able to detect.

In tests on mice, the biosensor was able to detect brain tumors with 100 percent accuracy. The team is now working on a clinical trial to test the sensor in people.

If successful, the biosensor could provide a non-invasive way to screen for cancer, as well as a way to monitor the disease in people who have already been diagnosed.

A brain tumor is a mass or growth of abnormal cells in the brain. Common brain tumor symptoms include headache, seizures, vision problems, and nausea. Brain tumors can be either benign (not cancerous) or malignant (cancerous). Primary brain tumors, which originate in the brain, are much less common than secondary brain tumors (metastatic brain tumors), which start as cancer in another part of the body and spread to the brain.

A new biosensor may offer a way to detect brain tumors with less than a drop of blood, according to a new study. The biosensor, which uses magnetic particles and a smartphone, can detect the presence of a brain tumor with high accuracy, even in very early stages of development.

While more research is needed, the biosensor could one day offer a simple, non-invasive way to screen for brain tumors. This could be especially useful for people with a family history of brain cancer, as they are at higher risk for developing the disease.

The study, published in the journal Nature Nanotechnology, was conducted by a team of researchers at the University of Bordeaux in France.

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