Crystal Sieves, Born Anew

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Silicon-oxygen nanoparticles aggregate to form zeolites capturing other atoms and molecules in the process. The resulting minerals have regularly-shaped intricate pore and channel systems throughout their structures. Credit: Michael Tsapatsis Univers ...
Silicon-oxygen nanoparticles aggregate to form zeolites, capturing other atoms and molecules in the process. The resulting minerals have regularly-shaped, intricate pore and channel systems throughout their structures. Credit: Michael Tsapatsis, University of Minnesota

The porous, sieve-like minerals known as zeolites have been used for decades in purifiers, filters and other devices. Yet creating and refining a new type of zeolite is still a matter of sophisticated trial and error: no one has been able to figure out exactly how the crystals form, even in the laboratory.


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