Promising nanotechnology-enabled sensors, monitoring devices and analytical instruments continue to advance toward commercialization for diverse industrial, environmental, medical and military applications - but hurdles remain.

Although they are invisible to the naked eye, engineered nanoscaled materials made from such common substances as metal oxides, polymers, ceramics, and novel carbon derivatives (e.g., carbon nanotubes) demonstrate many desirable physical properties. For instance, compared to their macroscaled counterparts, nanomaterials may offer greater reactivity, optical absorption and catalytic efficiency; increased electrical conductivity, hardness, wear resistance, strength and ...

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