The inside of a living cell is a surprising patchwork of environments. For example, pH levels can vary dramatically in different organelles, despite them being just a couple hundred nanometers apart.

The illustration is a summary map of the organellar pH measured with a single pH-sensitive probe, SITE-pHorin, which possesses an ultra-pH sensitivity enhanced by the quantum entanglement effect. As ...

In coal-fired power plants, measurement and control of pH is critical to the efficient operation of wet flue gas scrubbers. However, harsh process conditions can necessitate frequent cleaning and ...