材料科学
纳米尺度
纳米技术
可视化
自愈水凝胶
透射电子显微镜
网络体系结构
网络结构
计算机科学
人工智能
分布式计算
计算机安全
高分子化学
作者
Ryuji Kiyama,Masahiro Yoshida,Takayuki Nonoyama,Tomáš Sedlačík,Hiroshi Jinnai,Takayuki Kurokawa,Tasuku Nakajima,Jian Ping Gong
标识
DOI:10.1002/adma.202208902
摘要
In this work, the authors succeed in direct visualization of the network structure of synthetic hydrogels with transmission electron microscopy (TEM) by developing a novel staining and network fixation method. Such a direct visualization is not carried out because sample preparation and obtaining sufficient contrast are challenging for these soft materials. TEM images reveal robust heterogeneous network architectures at mesh size scale and defects at micro-scale. TEM images also reveal 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.
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