1. Hierarchical self-assembly in an RNA-based coordination polymer hydrogel.
- Author
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El-Zubir, Osama, Rojas Martinez, Pablo, Dura, Gema, Doherty, Cameron, Cucinotta, Fabio, Mackenzie, Lewis E., Pal, Robert, Horrocks, Benjamin R., and Houlton, Andrew
- Subjects
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POLYMER colloids , *HYDROGELS , *COORDINATION polymers , *SYNERESIS , *PHOTOEMISSION , *POLYMERS , *LUMINESCENCE - Abstract
An RNA-based coordination polymer is formed by the aqueous reaction of CuI ions with the thionucleoside enantiomer (−)6-thioguanosine, (6tGH). The resulting polymer, [CuI(μ3-S-thioG)]n1, has a one-dimensional structure based on a [Cu4–S4] 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). [ABSTRACT FROM AUTHOR]
- Published
- 2023
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