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首页> 外文期刊>Chemistry: A European journal >An Amino-Acid-Based Self-Healing Hydrogel: Modulation of the Self-Healing Properties by Incorporating Carbon-Based Nanomaterials
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An Amino-Acid-Based Self-Healing Hydrogel: Modulation of the Self-Healing Properties by Incorporating Carbon-Based Nanomaterials

机译：一种基于氨基酸的自修复水凝胶：通过结合碳基纳米材料对自修复性能的调节。

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摘要

An amino-acid-based (11-(4-(pyrene-1-yl)butanamido)undecanoic acid) self-repairing hydrogel is reported. The native hydrogel, as well as hybrid hydrogels, have been thoroughly characterized by using various microscopic techniques, including transmission electron microscopy (TEM), atomic force microscopy (AFM), Raman spectroscopy, fluorescence spectroscopy, FTIR spectroscopy, X-ray diffraction, and by using rheological experiments. The native hydrogel exhibited interesting fluorescence properties, as well as a self-healing property. Interestingly, the self-healing, thixotropy, and stiffness of the native hydrogel can be successfully modulated by incorporating carbon-based nanomaterials, including graphene, pristine single-walled carbon nanotubes (Pr-SWCNTs), and both graphene and PrSWCNTs, within the native gel system. The self-recovery time of the gel was shortened by the inclusion of reduced graphene oxide (RGO), Pr-SWCNTs, or both RGO and Pr-SWCNTs. Moreover, hybrid gels that contained RGO and/or Pr-SWCNTs exhibited interesting semiconducting behavior.
机译：据报道，一种基于氨基酸的（11-（4-（py-1-基）丁二酰胺基）十一烷酸）自修复水凝胶。天然水凝胶以及杂化水凝胶已通过使用各种显微镜技术进行了全面表征，包括透射电子显微镜（TEM），原子力显微镜（AFM），拉曼光谱，荧光光谱，FTIR光谱，X射线衍射和通过流变实验。天然水凝胶表现出令人感兴趣的荧光性质以及自修复性质。有趣的是，通过将碳基纳米材料（包括石墨烯，原始单壁碳纳米管（Pr-SWCNT）以及石墨烯和PrSWCNT）掺入碳纳米材料中，可以成功地调节天然水凝胶的自修复，触变性和硬度。凝胶系统。通过加入还原的氧化石墨烯（RGO），Pr-SWCNT或RGO和Pr-SWCNT可以缩短凝胶的自恢复时间。此外，包含RGO和/或Pr-SWCNT的杂化凝胶表现出有趣的半导体行为。

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