Thermal Responsive Ion Selectivity of Uranyl Peroxide Nanocages: An Inorganic Mimic of K +  Ion Channels | Zendy

Gao Yunyi | Zendy; Szymanowski Jennifer E. S. | Zendy; Sun Xinyu | Zendy; Burns Peter C. | Zendy; Liu Tianbo | Zendy

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Thermal Responsive Ion Selectivity of Uranyl Peroxide Nanocages: An Inorganic Mimic of K + Ion Channels

Author(s) -

Gao Yunyi,

Szymanowski Jennifer E. S.,

Sun Xinyu,

Burns Peter C.,

Liu Tianbo

Publication year - 2016

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201601852

Subject(s) - chemistry , ion , nanocages , uranyl , selectivity , aqueous solution , inorganic chemistry , isothermal titration calorimetry , qualitative inorganic analysis , analytical chemistry (journal) , organic chemistry , catalysis , biochemistry , chromatography

An actinyl peroxide cage cluster, Li 48+ m K 12 (OH) m [UO 2 (O 2 )(OH)] 60 (H 2 O) n ( m ≈20 and n ≈310; U 60 ), discriminates precisely between Na + and K + ions when heated to certain temperatures, a most essential feature for K + selective filters. The U 60 clusters demonstrate several other features in common with K + ion channels, including passive transport of K + ions, a high flux rate, and the dehydration of U 60 and K + ions. These qualities make U 60 (a pure inorganic cluster) a promising ion channel mimic in an aqueous environment. Laser light scattering (LLS) and isothermal titration calorimetry (ITC) studies revealed that the tailorable ion selectivity of U 60 clusters is a result of the thermal responsiveness of the U 60 hydration shells.

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