20 September 2017
Vol 9, Issue 408

About The Cover

Cover image expansion

ONLINE COVER Mitochondria in the Spotlight. Within a mitochondrion (pictured), the electron transport chain produces energy for a cell. Perry et al. developed an imaging system using resonance Raman spectroscopy to quantify the mitochondrial redox state in real-time. By shining a laser on the heart surface, the authors could detect and quantify changes in mitochondrial redox state during restricted oxygen delivery and predict imminent cardiac arrest in rats. This imaging system could be useful for monitoring tissue oxygenation during surgery. [CREDIT: SCIENCE PICTURE CO./SCIENCE SOURCE]