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Hernandez JJ, Anokhin DV, Rosenthal M, Zhu X, Ivanov DA. Homeotropic orientation of an ion-channel forming mesophase induced by nanotemplate wetting. Phys Chem Chem Phys 2024; 26:13412-13419. [PMID: 38647047 DOI: 10.1039/d3cp05392j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Anodic aluminum oxide (AAO) membranes were used as templates to control orientation of an ion-channel forming columnar mesophase obtained by self assembly of a wedge-shaped sulfonate molecule. Inside the AAO structure, the director vector of the mesophase is oriented parallel to the pore axis due to the confinement effect. The molecular arrangement induced by the spatial confinement within the pores is extended over several microns into the remnant film on the AAO surface. The homeotropic alignment of the channels promotes unidimensional ion conduction through the film plane, which is manifested by a considerable increase in conductivity relative to isotropic samples.
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Affiliation(s)
- Jaime J Hernandez
- Institut de Sciences des Matériaux de Mulhouse (IS2M), CNRS UMR 7361, 15, rue Jean Starcky, F-68057 Mulhouse, France.
| | - Denis V Anokhin
- Faculty of Chemistry, Lomonosov Moscow State University (MSU), GSP-1, 1-3 Leninskiye Gory, 119991, Russian Federation
- Scientific Center for Genetics and Life Sciences, Sirius University of Science and Technology, 1 Olympic Ave., 354340 Sochi, Russian Federation
| | - Martin Rosenthal
- Institut de Sciences des Matériaux de Mulhouse (IS2M), CNRS UMR 7361, 15, rue Jean Starcky, F-68057 Mulhouse, France.
| | - Xiaomin Zhu
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Dimitri A Ivanov
- Institut de Sciences des Matériaux de Mulhouse (IS2M), CNRS UMR 7361, 15, rue Jean Starcky, F-68057 Mulhouse, France.
- Faculty of Chemistry, Lomonosov Moscow State University (MSU), GSP-1, 1-3 Leninskiye Gory, 119991, Russian Federation
- Scientific Center for Genetics and Life Sciences, Sirius University of Science and Technology, 1 Olympic Ave., 354340 Sochi, Russian Federation
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