Quantitative determination of cation-π interactions between metal ions and aromatic groups in aqueous media by a hydrogel Donnan potential method.
Phys Chem Chem Phys
; 24(10): 6126-6132, 2022 Mar 09.
Article
em En
| MEDLINE
| ID: mdl-35225304
ABSTRACT
Cation-π interactions in aqueous media are known to play critical roles in various biological activities. However, quantitative experimental information, such as the binding ratio of metal ions to aromatic groups, is hardly available due to the lack of a suitable test system and method. Herein, we proposed a hydrogel Donnan potential method to determine the binding ratio of metal ions to aromatic groups on polymer networks in aqueous media. In this method, we adopted recently developed poly(cation-π) hydrogels with a rich adjacent sequence of the cationic group and the aromatic group on the polymer network. A microelectrode technique (MET) is used to measure the Donnan potential of the poly(cation-π) hydrogels. From the Donnan potential, the binding ratios of various metal ions to aromatic groups are quantitatively determined for the first time.
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Base de dados:
MEDLINE
Assunto principal:
Hidrogéis
/
Metais
Idioma:
En
Revista:
Phys Chem Chem Phys
Assunto da revista:
BIOFISICA
/
QUIMICA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Japão