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Synthesis and bidirectional frequency tuning of cantilever-shape nanoresonators using FIB-CVD reported by Chang et al. [379]. (a) Carbon- and tungsten-based nanoresonators under resonance and a stationary stator; (b) Scheme of the synthesis and bidirectional frequency tuning mechanism; (c) Resonant frequency adjusted by adding material; (d) Resonant frequency adjusted by removing materials. Reused with permission from American Chemical Society, Copyright 2013.
