It is a grim milestone for Sudan, the world’s worst humanitarian crisis. But with insufficient funding, lack of access to key regions and intensifying violence, milestones like this have become the grim norm. “This is not hypothetical. It is a looming catastrophe,” said Sheldon Yett, the UN Children’s Fund (UNICEF) representative in Sudan. And […]
Scientists have perfected hydroxyapatite, a material for mineralizing bones and teeth. By adding a complex of amino acids to hydroxyapatite, they were able to form a dental coating that replicates the composition and microstructure of natural enamel. Improved composition of the material repeats the features of the surface of the tooth at the molecular and […]
