Open–closed switching of synthetic tubular pores

Yongju Kim, Jiheong Kang, Bowen Shen, Yanqiu Wang, Ying He and Myongsoo Lee ()
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Yongju Kim: State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry, Jilin University
Jiheong Kang: School of Engineering, The University of Tokyo
Bowen Shen: State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry, Jilin University
Yanqiu Wang: State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry, Jilin University
Ying He: State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry, Jilin University
Myongsoo Lee: State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry, Jilin University

Nature Communications, 2015, vol. 6, issue 1, 1-9

Abstract: Abstract While encouraging progress has been made on switchable nanopores to mimic biological channels and pores, it remains a great challenge to realize long tubular pores with a dynamic open–closed motion. Here we report μm-long, dynamic tubular pores that undergo rapid switching between open and closed states in response to a thermal signal in water. The tubular walls consist of laterally associated primary fibrils stacked from disc-shaped molecules in which the discs readily tilt by means of thermally regulated dehydration of the oligoether chains placed on the wall surfaces. Notably, this pore switching mediates a controlled water-pumping catalytic action for the dehydrative cyclization of adenosine monophosphate to produce metabolically active cyclic adenosine monophosphate. We believe that our work may allow the creation of a variety of dynamic pore structures with complex functions arising from open–closed motion.

Date: 2015
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DOI: 10.1038/ncomms9650

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