A group of MIT engineers have designed a molecular sieve that has nanopores of a specified size, for possible protein sorting: The key to the molecular sieve, which is made using microfabrication ...

(Nanowerk Spotlight) The petrochemical industry relies on separating chemicals that differ by just fractions of a nanometer in size. Methanol must be purified from similarly-sized molecules in the ...

When cetirizine was loaded into the hollow mesoporous molecular sieve, the drug was almost not released in the oral cavity when the patient took the preparation orally, which effectively avoided the ...

Natural gas treatment often uses adsorbents for contaminant removal. Special materials, such as molecular sieves, remove sulfur-containing impurities like mercaptans, as well as water vapor. Such ...

Ultrathin 2D metal-organic framework (MOF) membranes, with their highly tunable pore structures, ultrahigh pore density, and nanoscale thickness, are ideal materials for achieving both high ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...