Method for integrating MEMS device and interposer   
Patent # 7,381,630     Date Issued: June 3, 2008    

A method for producing Microelectromechanical Systems (MEMS) and related devices using Silicon-On-Insulator (SOI) wafer includes providing an SOI wafer, performing a mesa etch to at least partially define the MEMS device, bonding the SOI wafer to an interposer by direct boding, removing the handle layer of the SOI wafer, removing the oxide layer of the SOI wafer, and further etching the device layer of the SOI wafer to define the MEMS device. A structure manufactured according to the above described processes includes an interposer comprising an SOI wafer and a MEMS device mounted on the interposer. The MEMS device comprises posts extending from a silicon plate. The MEMS device is directly mounted to the interposer by bonding the posts of the MEMS device to the device layer of the interposer.   

Method and apparatus for chromatography-high field asymmetric waveform ion mobility spectrometry    
Patent # 7,365,316    Date Issued: April 29, 2008  

Method and apparatus for chromatographic high field asymmetric waveform ion mobility spectrometry, including a gas chromatographic analyzer section intimately coupled with an ionization section, an ion filter section, and an ion detection section, in which the sample compounds are at least somewhat separated prior to ionization, and ion filtering proceeds in a planar chamber under influence of high field asymmetric periodic signals, with detection integrated into the flow path, for producing accurate, real-time, orthogonal data for identification of a broad range of chemical compounds.

Systems for differential ion mobility analysis     
Patent # 7,355,170    Date Issued: April 8, 2008  

Disclosed herein are systems, methods and apparatus, for detection and identification of analytes in a volatilized or volatilizable sample, using the mobility-based signature that is produced when the volatilized sample is passed through an ion mobility based analyzer.

Fluorescence detection system including a photonic band gap structure
Patent # 7,314,751    Date Issued: January 1, 2008

A fluorescence detection system includes a photonic band gap structure. An internal surface of the photonic band gap structure defines a core region, and is coated with a film formed of conjugated polymer molecules. The core region is filled with a sample fluid or gas having a plurality of either chemical or biological analytes dispersed therein. An optical source generates excitation light directed to the sample fluid. In response, a binding event between a bacterium or chemical species in the fluid or gas and one or more of the conjugated polymer molecules generates a fluorescent signal whose wavelength falls within the photonic band gap. The fluorescent signal is guided through said core region by resonant reflections, and is guided onto a detector. A plurality of photonic band gap structures may be combined so as to form a biosensor array.