Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Structured visual or optical indicator – per se
Reexamination Certificate
2011-06-14
2011-06-14
Siefke, Sam P (Department: 1772)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Structured visual or optical indicator, per se
C422S402000, C422S068100, C422S082050
Reexamination Certificate
active
07959873
ABSTRACT:
A biosensor is comprised of a free and a biofunctionalized recognition self-sensing nanocantilever, a dock adjacent to the ends of the nanocantilevers, and a gap between the nanocantilevers and dock. The self-sensing cantilevers each include a semiconductor piezoresistor defined in a pair of legs about which the cantilevers flex. A bias power or current is applied to the piezoresistor. The sensitivity of the cantilevers is optimized for a given ambient temperature and geometry of the cantilevers and dock by minimizing the force spectral density, SF, of the cantilevers to determine the optimum bias power, Pin. A sub-aN/√Hz force sensitivity is obtained by scaling down the dimensions of the cantilevers and supplying an optimum bias power as a function of temperature and geometry.
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Arlett Jessica
Gudlewski Benjamin
Maloney James
Roukes Michael
Tang Hongxing
California Institute of Technology
Dawes Daniel L.
Dawes Marcus C.
Siefke Sam P
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