Volume 87 Issue 25 | p. 35 | Concentrates
Issue Date: June 22, 2009

Quantum Dots Linger In Mouse Tissue

Fluorescence imaging reveals that the flashing nanoparticles can persist for years in mice, although the long-term toxicity is still uncertain
Department: Science & Technology
Keywords: quantum dots, metal toxicity

Quantum dots could become fantastic contrast agents for medical imaging, but the glittering nanoparticles typically are made from toxic metals, and researchers don't know how long they remain in the body or whether they gradually dissolve. To shed light on those questions, Marcel P. Bruchez and colleagues of Carnegie Mellon University injected ZnS-coated CdSe quantum dots into mice and examined them with fluorescence imaging techniques (Nano Lett., DOI: "; $("#ERA_RC").html(contextualDefault); } }); var era_rc1 = {StyleId: '1',ERADomain: 'cen.firstlightera.com'};


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