Creating the new gold standard for rapid point-of-care testing

Phase Diagnostics’ focus is to develop next generation rapid point-of-care diagnostics for major unmet needs. Our platform technology enables unprecedented point-of-care accuracy for an array of potential applications, offering solutions for clinical, food safety manufacturing, and consumer diagnostic demands.


Phase Diagnostics is developing handheld, one-step, rapid point-of-care devices for the detection of various biomarkers. Our proprietary technology combines the ease-of-use and very low cost of rapid point-of-care diagnostics with the very high accuracy of lab-based tests, offering the best of both worlds.

3PS Device



Phase Diagnostics aims to offer a broad range of rapid diagnostic testing kits that can detect various analytes of interest (i.e. viruses, bacteria, proteins, etc.). To do this, Phase Diagnostics’ devices leverage the company’s 3PS (3-Dimensional Paper Sensors) technology, a patented detection system that combines sample concentration and detection in a single device.


Latest News

  • National Science Foundation SBIR Grant Awarded 2016
  • National Institute of Health STTR Grant Awarded 2015
  • One Start 2015 Top 10 Finalist 2015
  • Telemedicine & Advanced Technology Research Center (TATRC) Grant Awarded 2012

About Us


Dr. Ricky Chiu

Dr. Ricky Chiu is the co-founder and CEO of Phase Diagnostics. He is the lead inventor of Phase Diagnostics’ platform technology, which was based on his Ph.D. work. He was formerly at BMC (acquired by Alere Inc.,) where he took several rapid POC diagnostics from concept to market. Dr. Chiu received his PhD in bioengineering at the University of California, Los Angeles.

Gordon Lee

Garrett Mosley co-founded Phase Diagnostics while working towards his doctoral degree in Bioengineering under the direction of Dr. Daniel Kamei. He received his bachelor’s degree in Biochemistry and Psychology at California Lutheran University.

Gordon Lee

Felix Chao is the Director of Operations at Phase Diagnostics. He was the former Head of Project Management at SciClone Pharmaceuticals, a global spec-pharma company with revenues over $150 million. He received his B.S. in Bioengineering from the University of California, Los Angeles.

Gordon Lee

Brian Lee is a Research Associate at Phase Diagnostics. He was a former process engineer at Baxalta where he supported manufacturing and capital projects. Brian received his M.S. and B.S. in bioengineering at the University of California, Los Angeles.

Gordon Lee

Beatrice Lim is a Research Associate at Phase Diagnostics. She received her M.S. in physiology and biophysics from Georgetown University and her B.S. in biological sciences and B.A. in psychology from the University of California, Irvine.

Advisory Board

Dr. Ben Wu

Dr. Ben Wu is the Chair and Professor in the Department of Bioengineering at UCLA with joint academic appointments in the Department of Materials Science and Engineering and the School of Dentistry. Dr. Wu is a co-founder of multiple startups and is on the scientific advisory boards of 4 other companies, providing expertise on biomaterials processing, characterization, and clinical usage.

Dr. Daniel Kamei

Dr. Daniel Kamei is the Vice Chair and Associate Professor in the UCLA Department of Bioengineering. His research in aqueous two-phase complex fluid systems and their combination with the lateral-flow immunoassay has led to multiple peer-reviewed publications that have significantly impacted the development of the Phase Diagnostics platform technology.

Contact Us

Address 10527 Garden Grove Blvd, Garden Grove, CA, 92843
Phone +1 (714) 884-3861