Active Oxygen Measurement in Nonwoven Fabric by using Pullulan Thin Film employed Methylene Blue dye and Electron Spin Resonance (ESR): AOS in Nonwoven Fabric by MB indicator and ESR

摘要

Utilizing oxidation ability of reactive oxygen species by ultraviolet light, sterilization device has been developed. Therefore, detection technology of reactive oxygen species is indispensable. We succeeded in developing a sensor that reacts only with hydroxyl radical using methylene blue dye and pullulan which is water soluble polymer. Sterilization with active oxygen is necessary to use a nonwoven fabric. However, we do not know whether active oxygen is uniformly sterilized in the nonwoven fabric. Therefore, in this study, a box made of aluminum was designed, and the top of the box was sealed with a sterile bag. Thin films and spin trapping agents were placedinside the box, and active oxygen diffusion and OH* existence was investigated. As a result, it was suggested thatOH* was generated inside the nonwoven fabric.