Abstract
In the present work, dynamic frequency analysis of different nanostructures like nanobelt, nanotube etc., which can be attached to a conventional micro cantilever, is performed for estimating the mass sensitivity using finite element analysis. It is found that compared to rectangular bar and cylinder shape, tube shape gives higher sensitivity and is explained on the basis of distribution of effective mass. In the case of nanocantilever, it is found that by introducing a step discontinuity along the length of the cantilever, mass sensitivity can be enhanced. It is also proved that mass sensitivity is highly dependent on the position of mass loading in cantilever based mass sensors.