Nanotubes Sensors Detect NO | August 31, 2009 Issue - Vol. 87 Issue 35 | Chemical & Engineering News
Volume 87 Issue 35 | p. 25 | Concentrates
Issue Date: August 31, 2009

Nanotubes Sensors Detect NO

Sensor could signal the presence of physiological NO in real time
Department: Science & Technology
Keywords: single walled carbon nanotubes, sensors, NO

A new carbon-nanotube-based sensor shows promise for detecting nitric oxide in biological environments, in real time, and with spatial resolution. NO plays a vital role in biology as a signaling molecule. But NO decomposes rapidly to form other species, and thus tracking it through a biological system has proved difficult. Now, chemical engineering professor Michael S. Strano and colleagues at MIT have functionalized single-walled carbon nanotubes (SWNTs) with a 3,4-diaminophenyl-functionalized dextran (shown) to . . .

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