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| Research Progress on the Preparation and Multifield Applications of Lignin-based Hydrogels |
| Received:September 03, 2025 Revised:October 09, 2025 |
| DOI：10.11981/j.issn.1000-6842.2025.04.31 |
| Key Words:lignin;hydrogel;high value utilization;multiple applications |
| Fund Project:中国科协青年人才托举工程计划项目（2024QNRC0387）；广西自然科学基金项目（2025GXNSFBA069146，2025JJA120005，2023GXNSFGA026001，GKAD25069076）；制浆造纸科学与技术教育部重点实验室开放基金（KF202302）。 |
| Author Name | Affiliation | Postcode | | TANG Tian* | School of Light Industry and Food Engineering， Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Guangxi University， Nanning， Guangxi Zhuang Autonomous Regin， 530004cn | 530004 | | OUYANG Yuanxin | School of Light Industry and Food Engineering， Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Guangxi University， Nanning， Guangxi Zhuang Autonomous Regin， 530004cn | 530004 | | YANG Yuxin | School of Light Industry and Food Engineering， Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Guangxi University， Nanning， Guangxi Zhuang Autonomous Regin， 530004cn | 530004 | | ZHANG Jiajun | School of Light Industry and Food Engineering， Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Guangxi University， Nanning， Guangxi Zhuang Autonomous Regin， 530004cn | 530004 | | SUN Yingying | School of Light Industry and Food Engineering， Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Guangxi University， Nanning， Guangxi Zhuang Autonomous Regin， 530004cn | 530004 | | SUN Shaochao* | School of Light Industry and Food Engineering， Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Guangxi University， Nanning， Guangxi Zhuang Autonomous Regin， 530004cn | 530004 | | DU Boyu* | School of Light Industry and Food Engineering， Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Guangxi University， Nanning， Guangxi Zhuang Autonomous Regin， 530004cn | 530004 |
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| Abstract: |
| Lignin as a renewable aromatic polymer， is an ideal biomass material for constructing functional hydrogels due to its three-dimensional network structure and abundance of functional groups. This work introduced the structure and sources of lignin， then systematically summarized recent advances in the preparation of lignin-based hydrogels via strategies such as chemical cross-linking and physical assembly， with a particular focus on the regulatory mechanisms of the structure of lignin on the mechanical properties， stimuli-responsiveness， and functional characteristics of the resulting hydrogels. Simultaneously， it provided the comprehensive overview of the applications of lignin-based hydrogels in various fields， including biomedicine， environmental remediation， and flexible electronics. Finally， based on the challenge of controllability in material properties posed by the molecular heterogeneity of lignin， this work offered perspectives on the future of precise structural design and green， scalable production of lignin-based hydrogels. |
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