Abstract:Cantilever-based nanosensors are increasingly be- ing used as gas and chemical sensors. We mechanistically model an important source of stochasticity arising in these systems – the random collisions between the sensor and the surrounding molecules. The sensor dynamics is modeled as an underdamped second-order system with molecular collisions occurring at random times, and each strike adding noise to the sensor velocity. The time between two molecular strikes is drawn from an arbitrary distribution. Our analysi… Show more
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