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

Gan, Donglin1; Xing, Wensi1; Jiang, Lili2; Fang, Ju3; Zhao, Cancan3; Ren, Fuzeng3; Fang, Liming4; Wang, Kefeng5; Lu, Xiong1

2019-04-02

10.1038/s41467-019-09351-2

Nature Communications   影响因子和分区

2041-1723

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.

SCI

英语

NI期刊 ; NI论文 ; ESI高被引

其他

Fundamental Research Funds for the Central Universities[2682016CX075] ; Fundamental Research Funds for the Central Universities[2682018QY02]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000462985600005

NATURE PUBLISHING GROUP

Web of Science

1.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Technol Mat, Chengdu 610031, Sichuan, Peoples R China
2.Xihua Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Fluid & Power, Chengdu 610039, Sichuan, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
4.South China Univ Technol, Sch Mat Sci & Engn, Dept Polymer Sci & Engn, Guangzhou 510541, Guangdong, Peoples R China
5.Sichuan Univ, Natl Engn Res Ctr Biomat, Chengdu 610064, Sichuan, Peoples R China

Gan, Donglin,Xing, Wensi,Jiang, Lili,et al. Plant-inspired adhesive and tough hydrogel based on Ag-Lignin nanoparticles-triggered dynamic redox catechol chemistry[J]. Nature Communications,2019,10.

Gan, Donglin.,Xing, Wensi.,Jiang, Lili.,Fang, Ju.,Zhao, Cancan.,...&Lu, Xiong.(2019).Plant-inspired adhesive and tough hydrogel based on Ag-Lignin nanoparticles-triggered dynamic redox catechol chemistry.Nature Communications,10.

Gan, Donglin,et al."Plant-inspired adhesive and tough hydrogel based on Ag-Lignin nanoparticles-triggered dynamic redox catechol chemistry".Nature Communications 10(2019).