Real-Space Visualization of Charged Polymer Network of Hydrogel by Double Network Strategy and Mineral Staining

Noguchi, Shinji; Kiyama, Ryuji; Yoshida, Masahiro; Marsudi, Maradhana Agung; Kashimura, Naohiro; Tadanaga, Kiyoharu; Gong, Jian Ping; Nonoyama, Takayuki

Real-Space Visualization of Charged Polymer Network of Hydrogel by Double Network Strategy and Mineral Staining

Noguchi, Shinji; Kiyama, Ryuji; Yoshida, Masahiro et al.

Nano letters, 2024, 24(29), 9088-9095

Permalink : https://hdl.handle.net/2115/95753

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アクセス権	open access
URI	https://hdl.handle.net/2115/95753
タイトル	Real-Space Visualization of Charged Polymer Network of Hydrogel by Double Network Strategy and Mineral Staining
著者	Noguchi, Shinji ; Kiyama, Ryuji ; Yoshida, Masahiro ; Marsudi, Maradhana Agung ; Kashimura, Naohiro ; Tadanaga, Kiyoharu ; Gong, Jian Ping ; Nonoyama, Takayuki
著者名 Noguchi, Shinji
e-Rad_Researcher 90979428 著者名 Kiyama, Ryuji
著者名 Yoshida, Masahiro
著者名 Marsudi, Maradhana Agung
著者名 Kashimura, Naohiro
e-Rad_Researcher 90244657 著者名 Tadanaga, Kiyoharu
e-Rad_Researcher 20250417 著者名 Gong, Jian Ping
e-Rad_Researcher 50709251 著者名 Nonoyama, Takayuki
言語	英語
キーワード	Analytical methods
	Electron microscopy
	Gels
	Nanostructure
	Polymers
発行日	2024-07-24
出版者	American Chemical Society
収録物名	Nano letters
巻(号)	24(29)
ページ	9088-9095
抄録	Hydrogels consist of three-dimensional (3D) and complicated polymer networks that determine their physical properties. Among the methods for structural analyses of hydrogels, the real-space imaging of a polymer network of hydrogels on a nanometer scale is one of the optimal methods; however, it is highly challenging. In this study, we propose a direct observation method for cationic polymer networks using transmission electron microscopy (TEM). By combining the double network strategy and the mineral staining technique, we overcame the challenges of polymer aggregation and the low electron density of the polymer. An objective cationic network was incorporated into a neutral skeleton network to suppress shrinkage during subsequent staining. Titania mineralization along the cationic polymer strands provided sufficient electron density for the objective polymer network for TEM observation. This observation method enables the visualization of local structures in real space and plays a complementary role to scattering methods for soft matter structure analysis.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/articlesonrequest/AOR-PYKJTBZGMRBJD9PDHQFH.
PISSN	1530-6984
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1021/acs.nanolett.4c02559