This research aims to develop a key microelectromechanical systems (MEMS) device necessary for low-power, low-cost, robust 2D GC. The specific objectives of this project are to (a) develop a good understanding of the physics and chemistry governing the microscale thermal modulation based on theoretical modeling, (b) develop a new MEMS-based thermal modulator (microTM) device design such that it enables a 2D GC system that achieves theoretically predicted maximum peak capacity and minimum peak breakthrough, (c) fabricate the designed ìTM and experimentally characterize its performance, and (d) finally, demonstrate micrTM incorporating 2D GC with the highest compound separation performance with optimal operational conditions determined.

Intellectual Merit: With the development of the microTM, our study will provide the first step towards fully implementing comprehensive 2D GC with MEMS technology. It is readily conceivable that the improved separation power of 2D GC systems would pave the way for highly reliable and accurate in-situ monitoring/detection of VOCs in a sample even containing complex co-contaminant backgrounds. This project will make important contributions to micro analytical instrumentation for ultimate use in field-deployable GC analyses.

Broader Impact: Together with cost effectiveness, complete elimination of consumables from the 2D GC operation with the microTM would fill the gap between the current relatively limited use and future general use of the 2D GC technique in a wide spectrum of applications, potentially opening new commercial markets. The fundamental knowledge gained from this research will be assimilated into the PI's graduate course on MEMS and chemical sensing. Summer interns from underrepresented groups will be trained through synergetic coordination with the NSF National Nanotechnology Infrastructure Network (NNIN) program.

Project Start
Project End
Budget Start
2013-09-01
Budget End
2016-12-31
Support Year
Fiscal Year
2013
Total Cost
$249,997
Indirect Cost
Name
Regents of the University of Michigan - Ann Arbor
Department
Type
DUNS #
City
Ann Arbor
State
MI
Country
United States
Zip Code
48109