A Noninvasive Optical pH Sensor For Bioreactor Systems

摘要

A noninvasive optical pH sensor has been developed and used successfully in ground-based tests of NASA's space bioreactor. The main characteristics of the optical pH sensor are noninvasiveness and longterm stability. Although this sensor was developed for the purpose of supporting an automated, controlled bioreactor for low-gravity biotechnology cell culture research in space, it also has great value for long-term pH level monitoring for other cell culture bioreactor systems which are used on Earth.