One step detection of glutathione based on MnO2 nanosheet and pregnancy test strip ScienceDirect Rapid and effective protocol to measure glutathione peroxidase activity Bulletin of the National Research Centre Springer Nature Link One step detection of glutathione based on MnO2 nanosheet and pregnancy test strip ScienceDirect Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Glutathione Reductase (GR) Activity Assay Kit