作者: Steinar Hauan , Todd M Przybycien , Kaigham J Gabriel , John Neumann , Michael Bartkovsky
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摘要: A micro-electro-mechanical system (MEMS) device is described having a membrane which can be induced to resonate and the frequency of its resonance monitored. Chemical moieties attached membrane, these selected such that they have an affinity for molecules interest, especially biological interest. When interest bind increase mass thereby change membrane's resonance. By monitoring one obtain indication presence in some circumstances approximate concentration molecules. In addition, several types affinities different placed on way sensor detect distinguish ones may present absent.