Protein defect leaves sperm chasing their tails

A team led by researchers from Osaka University identify a protein required for electrical signal sensing, which, when defective, causes sperm to swim in circles.

Carbon dots make calcium easier to track

In hospitals, doctors often advise patients to take calcium supplements. But does the calcium get into the cells that need it? Until recently, it's been hard to tell.

The pH of calcium ions controls ion channel opening

Ion channels are pores in the membrane of cells or cell organelles. They allow positively or negatively charged particles, so-called ions, to be transported across the membrane. Biochemists at Johannes Gutenberg University ...

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