Molybdenum models

German chemists have shown how porous molybdenum compounds can emulate the chemistry of cellular transport proteins. Achim Müller of Bielefeld University and colleagues have produced a series of channel-like structures using their well known talent for making giant molybdenum compounds. They found that the unique porous nanocapsule {{(MoVI)MoVI5O21 (H2O) 6}12 {MoV2O4- (SO4)} 30}722 behaves like a semi-permeable inorganic membrane that is open to the passage of water molecules and small cations, such as Li+, and as such can channel traffic in a similar manner to certain membrane channels.