非イオン性界面活性剤の六方相により得られたフォトニックヒドロゲルの構造と特性

非离子表面活性剂六方相光子水凝胶的结构与性能

• 批准号: 21F20769
• 负责人: グン 剣萍
• 金额: $ 1.47万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-28 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21F20769/
• 关键词: Photonic hydrogel; lamellar bilayers; self-assembly; mechanical properties; surfactant

In-situ structural analysis by USAXS have revealed that the deformation mechanisms within the hydrogels have been modified even by very small amounts of co-surfactants, meaning that the chemistry of the co-surfactant is of utmost importance in this system. Such observations have led us to hypothesize that interfacial interactions between the lamellae and the gel matrix between lamellae play an important role in the deformation mechanisms during uniaxial loading or cyclic loading by helping to dissipate more energy. We expect that such understanding will help to deepen our knowledge of this system in future studies involving the mechanical response under different loading conditions. The results of this research project have been summarized into an article, submitted to the journal ACS Omega (currently under review). Thus, this research project will be published online soon. Thanks to the novelty of the work, other fundamental questions are expected to be elucidated especially regarding the mechanical behavior of this type of hydrogel. Unfortunately, USAXS conditions were not suitable to obtain any data at solution state and the SAXS machine available at the university did not give good results (even with a custom-made sample-holder) due to a lack of beam power.

USAXS的原位结构分析表明，即使是非常少量的共表面活性剂也会改变水凝胶内部的变形机制，这意味着共表面活性剂的化学性质在该体系中至关重要。这些观察结果使我们假设，在单轴加载或循环加载过程中，片层之间的界面相互作用和片层之间的凝胶基质之间的相互作用通过帮助耗散更多的能量在变形机制中起重要作用。我们期望这样的理解将有助于在未来涉及不同载荷条件下的力学响应的研究中加深我们对该系统的认识。这个研究项目的结果已经总结成一篇文章，提交给ACS Omega杂志（目前正在审查中）。因此，这个研究项目将很快在网上发表。由于这项工作的新颖性，其他基本问题预计将得到阐明，特别是关于这种类型的水凝胶的机械行为。不幸的是，USAXS条件不适合在溶液状态下获得任何数据，并且由于缺乏光束功率，大学可用的SAXS机器也没有给出良好的结果（即使使用定制的样品架）。

项目成果

研究室ホームページ

实验室主页

Mechanical reinforcement of self-assembled photonic hydrogels by small amounts of co-surfactants

少量辅助表面活性剂对自组装光子水凝胶的机械增强

• 发表时间: 2023
• 作者: X. Zhu;M. Bescond;B. Bastard;C. Salhani;N. Nagai;and K. Hirakawa;Milena Lama
• 通讯作者: Milena Lama

Modification of the macroscopic properties of lamellar photonic hydrogels by small amounts of co-surfactants

少量辅助表面活性剂改变层状光子水凝胶的宏观性能

• 发表时间: 2022
• 作者: Fabian Eisenstein;Milena Lama
• 通讯作者: Milena Lama

Modification of the mechanical response of self-assembled photonic hydrogels by small amounts of co-surfactants

通过少量辅助表面活性剂改变自组装光子水凝胶的机械响应

• 发表时间: 2022
• 作者: Eisenstein Fabian;Yanagisawa Haruaki;Kashihara Hiroka;Kikkawa Masahide;Tsukita Sachiko;Danev Radostin;Kerstin Fooken;Courtney Dunphy;Milena Lama
• 通讯作者: Milena Lama

Role of co-surfactants on improving the mechanical response of lamellar photonic hydrogels

助表面活性剂在改善层状光子水凝胶机械响应中的作用

• 发表时间: 2022
• 作者: Danev Radostin;Belousoff Matthew;Liang Yi-Lynn;Zhang Xin;Eisenstein Fabian;Wootten Denise;Sexton Patrick M.;Milena Lama
• 通讯作者: Milena Lama