Direct Cellular Oximetry for Monitoring Patient Health


Robert (Bob) Masterson, PhD

CEO, President, Chairman of the Board


Bob is a serial life science entrepreneur, having co-founded Seattle-based Tessera Diagnostics (Onconome) and Prevencio (Kirkland, WA). He served as CEO and board member of Prevencio from its inception in 2006 until 2013, and then as Chief Commercial Officer until 2014. Previously, Bob held positions including Chief Scientific Officer and VP of Research and Development (see LinkedIn profile). Since 2014, he has served as an Entrepreneur in Residence at the University of Washington (Seattle, WA) and Oregon Health & Sciences University (Portland, OR).




John Brenneman, MBA

Chief Financial Officer


John has a proven track record as CFO in startup, growth, turnaround, large and small businesses – including Mpire Corporation, Tessera, Vidiator and Lizardtech.   His medical device experience also includes management roles at Baxter Healthcare and Ostex International.  John’s expertise is creating processes for efficient growth and positive ROI.  He has multiple experiences in private and public capital raising, corporate purchase and sale transactions, licensing and new business development.




Lori Arakaki, PhD

Chief Technology Officer, Board Member


Lori is a research scientist at the University of Washington. With her background in bioengineering, she is a well-respected expert in biological optical spectroscopy. Her research focus is the development of spectral analytic techniques to measure changes in tissue chromophores using multivariate analysis. She has a breadth of experience with optical system design, design of experimental protocols, and data analysis.




Kenneth A. Schenkman, MD, PhD

Chief Medical Officer, Board Member


Ken is an associate professor of pediatrics, anesthesiology and bioengineering (adjunct) at the University of Washington. He is an attending critical care physician in the Pediatric Intensive Care Units at Seattle Children’s Hospital.  His active research program develops optical spectroscopic technologies for clinical assessment of cellular oxygenation and mitochondrial function. His laboratory has been funded by grants from the National Institutes of Health, American Heart Association, Whitaker Foundation, McMillen Foundation, Medic One Foundation, W. H. Coulter Foundation and Washington State Life Science Discovery Fund.




Wayne Ciesielski

Research Scientist


Wayne is a research scientist at the University of Washington. His expertise is in the field of optical spectroscopy with specific emphasis and experience in spectroscopy of oxygen transport proteins and tissue. His background includes chemistry and the development of optical devices.




Opticyte, Inc.

University of Washington

Box 352141

4000 Mason Road, Suite 300

Seattle, WA 98195