Neurons rely on calcium to mediate between electrical and chemical signaling, but they must handle it with care, as too much of the ion can do damage. A paper in the April 4 Journal of Neuroscience ...

Calcium carbonate is an abundant substance that can be created in several mineral forms by the reaction of dissolved carbon dioxide in water with calcium ions. Through biomineralization, organisms can ...

In tetrameric cation channels, a phenomenon known as divalent cation block is known to occur: the blocking of ion transport due to the presence of divalent cations such as calcium (Ca 2+) or magnesium ...