How to measure a force of 170 Zeptonewtons
Microscopic ladders made from silicon and diamond allow pushing the force sensitivity of AFM cantilevers to extremely low value
by
Christian Degen
The "nanoladder" cantilevers consist of sub-micron thick rungs and cross-bars, and were fabricated in the FIRSTlab and BRNC cleanroom facilities available at ETH and IBM Zurich.
external pageM. Heritier et al., Nano Letters 18, 1814 (2018).call_made