The document describes Beelee Chua's MEMS (microelectromechanical systems) portfolio from 1998-2006, including surface micromachined circular and folded spring resonators, SCREAM actuators with tunneling tips for coarse and fine displacement, SOI folded spring resonators, backside released SOI capacitive sensing accelerometers and gyroscopes, a packaged accelerometer, micro corona ionizers for particle separation, and a prototype particulate analyzer using a corona ionizer and separator electrodes.