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Plant-inspired adhesive and tough hydrogel based on Ag-Lignin nanoparticles-triggered dynamic redox catechol chemistry

Author

Listed:
  • Donglin Gan

    (Southwest Jiaotong University)

  • Wensi Xing

    (Southwest Jiaotong University)

  • Lili Jiang

    (Xihua University)

  • Ju Fang

    (Southern University of Science and Technology, Shenzhen)

  • Cancan Zhao

    (Southern University of Science and Technology, Shenzhen)

  • Fuzeng Ren

    (Southern University of Science and Technology, Shenzhen)

  • Liming Fang

    (South China University of Technology)

  • Kefeng Wang

    (Sichuan University)

  • Xiong Lu

    (Southwest Jiaotong University)

Abstract

Adhesive hydrogels have gained popularity in biomedical applications, however, traditional adhesive hydrogels often exhibit short-term adhesiveness, poor mechanical properties and lack of antibacterial ability. Here, a plant-inspired adhesive hydrogel has been developed based on Ag-Lignin nanoparticles (NPs)triggered dynamic redox catechol chemistry. Ag-Lignin NPs construct the dynamic catechol redox system, which creates long-lasting reductive-oxidative environment inner hydrogel networks. This redox system, generating catechol groups continuously, endows the hydrogel with long-term and repeatable adhesiveness. Furthermore, Ag-Lignin NPs generate free radicals and trigger self-gelation of the hydrogel under ambient environment. This hydrogel presents high toughness for the existence of covalent and non-covalent interaction in the hydrogel networks. The hydrogel also possesses good cell affinity and high antibacterial activity due to the catechol groups and bactericidal ability of Ag-Lignin NPs. This study proposes a strategy to design tough and adhesive hydrogels based on dynamic plant catechol chemistry.

Suggested Citation

  • Donglin Gan & Wensi Xing & Lili Jiang & Ju Fang & Cancan Zhao & Fuzeng Ren & Liming Fang & Kefeng Wang & Xiong Lu, 2019. "Plant-inspired adhesive and tough hydrogel based on Ag-Lignin nanoparticles-triggered dynamic redox catechol chemistry," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09351-2
    DOI: 10.1038/s41467-019-09351-2
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    Cited by:

    1. Yuanchi Zhang & Cairong Li & Along Guo & Yipei Yang & Yangyi Nie & Jiaxin Liao & Ben Liu & Yanmei Zhou & Long Li & Zhitong Chen & Wei Zhang & Ling Qin & Yuxiao Lai, 2024. "Black phosphorus boosts wet-tissue adhesion of composite patches by enhancing water absorption and mechanical properties," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. Bin Xue & Jie Gu & Lan Li & Wenting Yu & Sheng Yin & Meng Qin & Qing Jiang & Wei Wang & Yi Cao, 2021. "Hydrogel tapes for fault-tolerant strong wet adhesion," Nature Communications, Nature, vol. 12(1), pages 1-12, December.
    3. Pengchao Zhao & Xianfeng Xia & Xiayi Xu & Kevin Kai Chung Leung & Aliza Rai & Yingrui Deng & Boguang Yang & Huasheng Lai & Xin Peng & Peng Shi & Honglu Zhang & Philip Wai Yan Chiu & Liming Bian, 2021. "Nanoparticle-assembled bioadhesive coacervate coating with prolonged gastrointestinal retention for inflammatory bowel disease therapy," Nature Communications, Nature, vol. 12(1), pages 1-13, December.
    4. Hongda Guo & Mengnan Cao & Ruixia Liu & Bing Tian & Shouxin Liu & Jian Li & Shujun Li & Bernd Strehmel & Tony D. James & Zhijun Chen, 2024. "Photocured room temperature phosphorescent materials from lignosulfonate," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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