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Dr. Qingye Lu, Dongyeop X. Oh, Youngjin Lee, Prof. Yongseok Jho, Prof. Dong Soo Hwang and Prof. Hongbo Zeng Nanomechanics of Cation–π Interactions in Aqueous Solution Angewandte Chemie International Edition 52

Version of Record online: 28 FEB 2013 | DOI: 10.1002/anie.201210365

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The first direct probing of the nanomechanics of cation–π interactions in aqueous media was accomplished by using a surface forces apparatus with complementary theoretical simulations. The tetraethylammonium (TEA) ion breaks the adhesion between poly-L-tryptophan (PTrp) and poly-L-lysine (PLL) with a 100 times higher sensitivity relative to the K+ ion (PS=polystyrene, PTyr=poly-L-tyrosine, and ACh=acetylcholine).

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