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Nanoparticles offer new hope for detection and treatment Particles could make earlier cancer diagnosis possibleSpecially designed nanoparticles can reveal tiny cancerous tumors that are invisible by ordinary means of detection, according to a study by researchers at Washington University School of Medicine in St. Louis. The researchers demonstrated that very small human melanoma tumors growing in mice—indiscernible from the surrounding tissue by direct MRI scan - could be "lit up" and easily located as soon as 30 minutes after the mice were injected with the nanoparticles.
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