Atmospheric-Pressure Ionization: Processes and Applications
Location:140 DeBartolo Hall
Over the past few decades, there have been multiple revolutions in how ions are produced in the gas phase influencing the way we approach multiple fields today. For example, the advent of the electrospray to form gaseous ions from liquid solutions has transformed modern-day mass spectrometry. Similarly, the development of stable, atmospheric-pressure gas discharges or plasmas has spawned applications ranging from lighting to wound healing. In this talk, multiple projects my research group is currently pursuing on developing, understanding, and applying new techniques for atmospheric-pressure ionization will be discussed. In the field of plasma engineering, we focus on new ways to generate charges in atmospheric air, either through gaseous ionization or surface electron emission, and how these charges interact with neutral gases and surfaces. Specific areas of research that will be covered include corona discharges, microplasma jets, and microscale (< 10 um) discharges for applications ranging from flow generation to materials synthesis. In the field of sprays, we focus on new ways to create gaseous ions from liquid solution and how to utilize these techniques for chemical measurement and analysis. Specifically, we will discuss alternating current (AC) electrospray ionization and surface acoustic wave nebulization (SAWN) as new ionization techniques for mass spectrometry. Though they are similar to other established techniques, they are fundamentally different and offer new advantages that can be used in fields as diverse as proteomics and small drug detection. In both of these areas, we will emphasize emerging areas of interest and future directions of research.
Dr. David Go
AME - Notre Dame
David B. Go holds a B.S. in Mechanical Engineering from the University of Notre Dame, M.S. in Aerospace Engineering from the University of Cincinnati, and Ph.D. in Mechanical Engineering from Purdue University. After graduating with a Ph.D., he joined the faculty at the University of Notre Dame in 2008. As an Assistant Professor, he as published in many fields ranging from plasma science and analytical chemistry to electronics cooling and heat transfer. In addition to 19 journal articles, he has contributed to both a book chapter and trade magazine, holds multiple patents, and has over 50 conference presentations and proceedings. Prof. Go’s work is supported by both industry and federal sources, and he has been distinguished with the Air Force Office of Scientific Research Young Investigator Award and the National Science Foundation CAREER award for his research and contributions on microplasmas.