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基于 RNA 的配位聚合物水凝胶中的分级自组装。

Hierarchical self-assembly in an RNA-based coordination polymer hydrogel.

机构信息

Chemical Nanoscience Labs, Chemistry, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.

Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, UCLM, Spain.

出版信息

Dalton Trans. 2023 May 2;52(17):5545-5551. doi: 10.1039/d3dt00634d.

DOI:10.1039/d3dt00634d
PMID:37009664
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10152458/
Abstract

An RNA-based coordination polymer is formed by the aqueous reaction of Cu ions with the thionucleoside enantiomer (-)6-thioguanosine, (6tGH). The resulting polymer, [Cu(μ-S-thioG)]1, has a one-dimensional structure based on a [Cu-S] core and undergoes extensive hierarchical self-assembly transforming from oligomeric chains → rod → cable → bundle through which a fibrous gel forms, that undergoes syneresis to form a self-supporting mass. The assembly involves the formation of helical cables/bundles and, in combination with the intrinsic photoemission of the polymer, results in the material exhibiting circularly polarised luminescence (CPL).

摘要

一种基于 RNA 的配位聚合物是通过 Cu 离子与硫核苷对映异构体 (-)6-硫鸟嘌呤，(6tGH)在水溶液中的反应形成的。所得聚合物 [Cu(μ-S-thioG)]1 具有基于 [Cu-S] 核的一维结构，并通过寡聚物链→棒→缆绳→束经历广泛的分级自组装转变，其中形成纤维状凝胶，通过收缩形成自支撑质量。该组装涉及螺旋缆绳/束的形成，并且与聚合物的固有光致发光相结合，导致材料表现出圆偏振发光 (CPL)。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/a14aa30200ea/d3dt00634d-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/d125cdbeca61/d3dt00634d-f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/f3e49b471e56/d3dt00634d-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/a9475846ddff/d3dt00634d-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/a14aa30200ea/d3dt00634d-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/d125cdbeca61/d3dt00634d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/4802d7789743/d3dt00634d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/b5ccac183d89/d3dt00634d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/e1dc0780fa40/d3dt00634d-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/b2466711fcc1/d3dt00634d-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/5567fa827726/d3dt00634d-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/f8949e7d62e3/d3dt00634d-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/f3e49b471e56/d3dt00634d-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/a9475846ddff/d3dt00634d-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e9e/10152458/a14aa30200ea/d3dt00634d-f9.jpg

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