Self-Assembled Hydrazide-Based Nanochannels: Efficient Water Translocation and Salt Rejection.

Autor: Mondal A; Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India.; Present Address: Leiden Institute of Chemistry, Leiden University, 2333, CC Leiden, The Netherlands., Mondal D; Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India.; Present Address: Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirkii Wigury 101, Warsaw, 02-089, Poland., Sarkar S; Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad 500046, Telangana, India., Shivpuje U; Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India., Mondal J; Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad 500046, Telangana, India., Talukdar P; Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2024 Aug 19, pp. e202415510. Date of Electronic Publication: 2024 Aug 19.
DOI: 10.1002/anie.202415510
Abstrakt: Nature has ingeniously developed specialized water transporters that effectively reject ions, including protons, while transporting water across membranes. These natural water channels, known as aquaporins (AQPs), have inspired the creation of Artificial Water Channels (AWCs). However, replicating superfast water transport with synthetic molecular structures that exclude salts and protons is a challenging task. This endeavor demands the coexistence of a suitable water-binding site and a selective filter for precise water transportation. Here, we present small-molecule hydrazides 1 b-1 d that self-assemble into a rosette-type nanochannel assembly through intermolecular hydrogen bonding and π-π stacking interactions, and selectively transport water molecules across lipid bilayer membranes. The experimental analysis demonstrates notable permeability rates for the 1 c derivative, enabling approximately 3.18×10 8 water molecules to traverse the channel per second. This permeability rate is about one order of magnitude lower than that of AQPs. Of particular significance, the 1 c ensures exclusive passage of water molecules while effectively blocking salts and protons. MD simulation studies confirmed the stability and water transport properties of the water channel assembly inside the bilayer membranes at ambient conditions.
(© 2024 Wiley-VCH GmbH.)
Databáze: MEDLINE
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