Varol, H. Samet ; Förster, Claire ; Andrieu‐Brunsen, Annette (2023)
Ligand‐Binding Mediated Gradual Ionic Transport in Nanopores.
In: Advanced Materials Interfaces, 10 (8)
doi: 10.1002/admi.202201902
Article, Bibliographie
This is the latest version of this item.
Abstract
Selective binding of metal ions to their receptors at the cell membranes is essential for immune reactions, signaling, and opening/closing of the ion channels. Such ligand-binding-based pore activities inspire scientists to build metal-ion-responsive mesoporous films that can interact with metal ions to tune the ionic nanopore transport. However, to apply these mesoporous films in novel sensing and separation applications, their ligand-binding-triggered ionic pore transport needs to be understood fundamentally toward programming the transport of both anions and cations simultaneously and gradually. Herein, it is shown how Ca²⁺ ion concentration and attachment to the different chemistry silica nanopores tunes finely the nanopore transport of both anions and cations, especially for phosphate-containing polyelectrolyte (PMEP) functionalized mesopores. This biased ligand binding can gradually regulate the transport of anions and cations, whereas pores without polymers can gradually regulate only the anionic transport. Last, pore polymer functionality related to Ca²⁺ ion binding also diverts the pores’ adsorption/desorption (reversibility) response. Almost fully reversible Ca²⁺ binding is observed in non-functional pores and non-reversible C²⁺ binding at the PMEP-modified pores. It is also demonstrated that non/functional pores, even at sub-µm concentrations, bind only divalent Ca²⁺ ions, but they are not selective to trivalent Al³⁺ ions.
| Item Type: | Article |
|---|---|
| Erschienen: | 2023 |
| Creators: | Varol, H. Samet ; Förster, Claire ; Andrieu‐Brunsen, Annette |
| Type of entry: | Bibliographie |
| Title: | Ligand‐Binding Mediated Gradual Ionic Transport in Nanopores |
| Language: | English |
| Date: | 2023 |
| Place of Publication: | Weinheim |
| Publisher: | Wiley |
| Journal or Publication Title: | Advanced Materials Interfaces |
| Volume of the journal: | 10 |
| Issue Number: | 8 |
| Collation: | 11 Seiten |
| DOI: | 10.1002/admi.202201902 |
| Corresponding Links: | |
| Abstract: | Selective binding of metal ions to their receptors at the cell membranes is essential for immune reactions, signaling, and opening/closing of the ion channels. Such ligand-binding-based pore activities inspire scientists to build metal-ion-responsive mesoporous films that can interact with metal ions to tune the ionic nanopore transport. However, to apply these mesoporous films in novel sensing and separation applications, their ligand-binding-triggered ionic pore transport needs to be understood fundamentally toward programming the transport of both anions and cations simultaneously and gradually. Herein, it is shown how Ca²⁺ ion concentration and attachment to the different chemistry silica nanopores tunes finely the nanopore transport of both anions and cations, especially for phosphate-containing polyelectrolyte (PMEP) functionalized mesopores. This biased ligand binding can gradually regulate the transport of anions and cations, whereas pores without polymers can gradually regulate only the anionic transport. Last, pore polymer functionality related to Ca²⁺ ion binding also diverts the pores’ adsorption/desorption (reversibility) response. Almost fully reversible Ca²⁺ binding is observed in non-functional pores and non-reversible C²⁺ binding at the PMEP-modified pores. It is also demonstrated that non/functional pores, even at sub-µm concentrations, bind only divalent Ca²⁺ ions, but they are not selective to trivalent Al³⁺ ions. |
| Divisions: | DFG-Collaborative Research Centres (incl. Transregio) DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1194: Interaction between Transport and Wetting Processes DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1194: Interaction between Transport and Wetting Processes > Research Area C: New and Improved Applications DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1194: Interaction between Transport and Wetting Processes > Research Area C: New and Improved Applications > C04: Controlled Dynamic Wetting and the Influence of Ionic Mass Transport in Mesoporous Film 07 Department of Chemistry 07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Makromolekulare Chemie |
| Date Deposited: | 07 Dec 2023 11:39 |
| Last Modified: | 07 Dec 2023 11:41 |
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Ligand‐Binding Mediated Gradual Ionic Transport in Nanopores. (deposited 12 May 2023 08:39)
- Ligand‐Binding Mediated Gradual Ionic Transport in Nanopores. (deposited 07 Dec 2023 11:39) [Currently Displayed]
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