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Nanoscale TEM Imaging of Hydrogel Network Architecture

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Title: Nanoscale TEM Imaging of Hydrogel Network Architecture
Authors: Kiyama, Ryuji Browse this author
Yoshida, Masahiro Browse this author
Nonoyama, Takayuki Browse this author →KAKEN DB
Sedlačík, Tomáš Browse this author
Jinnai, Hiroshi Browse this author
Kurokawa, Takayuki Browse this author →KAKEN DB
Nakajima, Tasuku Browse this author →KAKEN DB
Gong, Jian Ping Browse this author →KAKEN DB
Keywords: Hydrogel
Polymer network
Direct observation
Transmission electron microscopy
Double Network
Mineral staining
Dangling chain
Issue Date: 2022
Publisher: Wiley-Blackwell
Journal Title: Advanced Materials
Volume: 35
Issue: 1
Start Page: 2208902
Publisher DOI: 10.1002/adma.202208902
Abstract: In this work, we succeeded in direct visualization of the network structure of synthetic hydrogels with TEM by developing a novel staining and network fixation method. Such a direct visualization had not been carried out because sample preparation and obtaining sufficient contrast are challenging for these soft materials. TEM images revealed robust heterogeneous network architectures at mesh size scale and defects at micro-scale. TEM images also revealed the presence of abundant dangling chains on the surface of the hydrogel network. The real space structural information provides a comprehensive perspective that links bulk properties with a nanoscale network structure, including fracture, adhesion, sliding friction, and lubrication. The presented method has the potential to advance the field.
Rights: This is the peer reviewed version of the following article: Nanoscale TEM Imaging of Hydrogel Network 1 Architecture, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
Type: article (author version)
Appears in Collections:生命科学院・先端生命科学研究院 (Graduate School of Life Science / Faculty of Advanced Life Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 龔 剣萍 (Gong Jian Ping)

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