A magnetic wire inserted into a vein captures circulating tumor cells and cell-free tumor DNA
Blood biomarkers for cancer are often present only in low concentrations. But how can you interrogate the entire contents of an adult’s circulatory system? Sanjiv “Sam” Gambhir and his colleagues at the Canary Center at Stanford for Cancer Early Detection have developed a unique approach: an injection of magnetic nanoparticles designed to bind circulating tumor cells, combined with a thin, magnetic wire that captures them directly from the vein.
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