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Home > News > Nanotubes for mass sensing

March 25th, 2009

Nanotubes for mass sensing

Carbon nanotubes (CNTs) could be promising alternatives to nanowires for making highly sensitive chemical sensors. So say researchers at Hewlett Packard Labs in the US and the University of Alberta, Canada, who have made single-crystal silicon nanotubes that are significantly lighter than their nanowire counterparts. A lighter sensor can detect smaller changes in mass.

"Nanotubes for differential-mass resonant sensors may also be able to detect extremely small changes in mass in a liquid because we can encase the liquid inside the tube," team member Nathaniel Quitoriano told


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