ArticleAngewandte Chemie (International ed. in English)2023
Superchaotropic Nano-ion Binding as a Gelation Motif in Cellulose Ether Solutions.
Article in Angewandte Chemie (International ed. in English), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 27 citations in OpenAlex.
- Unexpectedly Strong Electrostatic Screening in Nano-Ion Solutions.Angewandte Chemie (International ed. in English) · 2026Article
- Specific Ion Effects of Chaotropic and Superchaotropic Anions Probed by Raman Hydration-Shell Spectroscopy.Angewandte Chemie (International ed. in English) · 2026Article
- Hydrogels Under Superchaotropic Control: Polyoxometalate Stabilization and pH-Responsive Crosslinking in Cellulose Ether Solutions.Angewandte Chemie (International ed. in English) · 2026Article
- Tuning the Surface Activity and Micellization ofLangmuir : the ACS journal of surfaces and colloids · 2025Article
- Engineered iron oxide nanoplatforms: reprogramming immunosuppressive niches for precision cancer theranostics.Molecular cancer · 2025Review
- Boron-Rich Soft Hydrogels Based on the Coassembly of Cationic A‑B‑A Triblock Copolymers withMacromolecules · 2025Article
- A small-molecule carrier for the intracellular delivery of a membrane-impermeable protein with retained bioactivity.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Superchaotropic Nano-ion Binding as a Gelation Motif in Cellulose Ether Solutions.Angewandte Chemie (International ed. in English) · 2023Article
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nanometer-sized anions (nano-ions) like polyoxometalates and boron clusters exhibit so-called superchaotropic behavior, which describes their strong binding to hydrated non-ionic matter in water. We show here that nano-ions, at millimolar concentrations, dramatically enhance the viscosity and induce gelation of aqueous solutions of non-ionic cellulose ethers (CEs), a class of widely utilized polymers known for their thickening and gel-forming ability. These phenomena arise from an interplay of attractive forces and repulsive electrostatic forces between CE-chains upon nano-ion binding. The attractive forces manifest themselves as aggregation of CE-chains into a physically crosslinked polymer network (gel). In turn, the electrostatic repulsions hamper the viscosity increase and gelation. Superchaotropic nano-ion binding emerges as a novel and general physical crosslinking motif for CE-solutions and exceeds by far the conventional thickening effects of classical salts and ionic surfactants.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.