A new strategy to control sensitivity/selectivity of nanomechanical sensors
Optimization of sensitivity and selectivity is one of the main challenges for sensing devices. In this presentation, I will propose a new strategy to control such properties utilizing nanomechanical sensors as a model. Nanomechanical sensors are usually coated with polymers etc. on their surface to adsorb analyte molecules. According to a previous report, physical properties such as Young’s modulus and thickness of the coating layer significantly affect sensitivity, while selectivity is determined by the surface chemistry of the coating. These physical/chemical properties will be controlled by mixing various surface functionalized inorganic nanoparticles, which I developed, with the coating layer.