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Carboxylic acid-functionalized mesoporous silica nanoparticles (CF-MSNs) with ultra-high specific surface area are synthesized successfully as sensing material. With the CF-MSNs sensing material loaded onto our lab-made resonant micro-cantilever, which is with both resonance-exciting and self-sensing elements integrated, a new micro-gravimetric organophosphate (OP) sensor is developed. The sensor...
This paper reports a novel top-down/bottom-up combined resonant microcantilever chemical sensor, where the nanosensing material of a functionalized mesoporous thin film (MTF) is directly self-assembled on the sensing region of the integrated microcantilever. By using the batch-producible nano-on-micro construction technique, a large number of such sensors can be batch fabricated with uniform performance...
A novel hexa-fluoro-isopropanol-functionalized mesoporous-silica (HFMS) is constructed and loaded on integrated resonant micro-cantilevers for specific detection of trace-level trinitrotoluene (TNT) vapor. With an ultra-high specific-surface-area, an ultra-dense specific sensing-groups and an optimized pore size, the micro/nano combined cantilever sensors have shown TNT detection-limit of about 10...
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