1. Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH, USA
2. Department of Electrical Engineering and Computer Science and the Department of Chemistry, University of Cincinnati, Cincinnati, OH, USA
3. Sensors Directorate, Air Force Research Laboratories, Wright Patterson Air Force Base, Dayton, OH, USA
4. Department of Anesthesia and the Department of Anesthesia and Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA