发明名称 |
ENHANCED DETECTION SENSITIVITY WITH PIEZOELECTRIC MICROCANTILEVER SENSORS |
摘要 |
A method for enhancing the detection sensitivity of a piezoelectric microcantilever sensor. The method may involve providing a piezoelectric microcantilever and inducing a change in the Young's modulus during detection of a species of interest. The change in the Young's modulus may be induced or enhanced by the application of a DC bias electric field to the piezoelectric layer that enhances non-180° polarization domain switching of the piezoelectric layer. The change in the Young's modulus may also result from binding of the species of interest to the piezoelectric microcantilever sensor or a combination of binding and application of a DC bias electric field Significantly enhanced detection sensitivity results from the changed Young's modulus of the piezoelectric layer.
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申请公布号 |
US2011124124(A1) |
申请公布日期 |
2011.05.26 |
申请号 |
US20090921756 |
申请日期 |
2009.03.04 |
申请人 |
DREXEL UNIVERSITY |
发明人 |
SHIH WAN Y.;SHIH WEI-HENG;ZHU QING |
分类号 |
G01N33/53;B01J19/00 |
主分类号 |
G01N33/53 |
代理机构 |
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代理人 |
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地址 |
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