Shelled yeast

Researchers in Korea have found a way to give yeast particles a hard shell composed of silicon dioxide. By coating Saccharomyces cerevisiae with a protective, synthetic shell, Insung Choi and colleagues can triple the life of the yeast and also block replication. Previous researchers have coated yeast with a phosphate layer, but the current biomimetic approach could open up new avenues of research for this favorite organism of molecular biology.