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In this paper, a silicon resonant cantilever sensor is used for monitoring airborne nanoparticles (NPs) by detecting the resonant frequency shift that is directly induced by an additional NPs mass deposited on it. A piezoelectric stack actuator and a self-sensing technique using a piezoresistive strain gauge are involved in the sensor system in order to actuate and detect the oscillation of cantilever...
The paper reports a hyper-branched polymer functionalized on resonant micro-cantilevers to detect trace-level chemical vapor of dimethyl methylphosphonate (DMMP, simulant of sarin). The hyperbranch-polymer with functional-groups is directly constructed onto cantilever-surface by layer-to-layer step-growing monomers with an A2+B4 composition, where A2 and B4 are complementary interaction-groups for...
We present a resonant cantilever sensor for use in chemical and biological sensing applications. Electrostatically actuated suspended indium phosphide (InP) waveguides are used as the sensing cantilevers. This sensor uses an integrated optical detection scheme which eliminates the need for free space optical components seen in traditional systems. Discussions on device design as well as data collection...
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