| Detection of Gas-Phase Species by a Microfluidic Sers Apparatus | ||
| Brian D. Piorek, Chemical Engineering, UCSB, Engineering II, Santa Barbara, CA 93106, Carl Meinhart, Mechanical Engineering, UCSB, Engineering II, Santa Barbara, 93106, Martin Moskovits, Chemistry and Biochemistry, UCSB, Cheadle Hall, Santa Barbara, CA 93106 and Sanjoy Banerjee, Chemical Engineering, UCSB, Santa Barbara, CA 93117 We have developed a novel nanoscale fluidic platform for real time sensing of airborne agents. The key enabling technology is the invention we term Free-Surface Fluidics (FSF), where one or more fluidic surfaces, confined by surface tension forces, are exposed to the surrounding atmosphere. This enables the absorption of airborne chemical agents directly into micro/nano fluidic channels for subsequent analysis. We have combined our free-surface fluidic architecture with Surface Enhanced Raman Spectroscopy (SERS) for direct detection of airborne species. Extended Abstract Status: Not Uploaded | ||