Next-generation self-adhesive dressings: Highly stretchable, antibacterial, and UV-shielding properties enabled by tannic acid-coated cellulose nanocrystals

• 全文链接
• 请求原文

作   者：

Yang, Mingchen;  Huang, Chengling;  Yu, Hou-Yong;  Dong, Yanjuan;  Abdalkarim, Somia Yassin Hussain;  Qin, Cong Cong;  Wu, Meiqin;  Shen, Yunfei; 

作者机构：

Zhejiang Sci Tech Univ;  Huzhou City Linghu Xinwang Chem Co Ltd; 

关键词：

MULTIFUNCTIONAL HYDROGELS;  NANOFIBERS;  RESISTANCE;  Wound dressing;  Bilayer composites;  TRANSPARENT;  Rapid polymerization; 

期刊名称：

International Journal of Biological Macromolecules: Structure, Function and Interactions

i s s n：

0141-8130

年卷期：

2024 年 257 卷 Pt.2 期

页   码：

ARTN 128715-

页   码：

摘   要：

Hydrogels with excellent high-water uptake and flexibility have great potential for wound dressing. However, pure hydrogels without fiber skeleton faced poor water retention, weak fatigue resistance, and mechanical strength to hinder the development of the dressing as next-generation functional dressings. We prepared an ultrafast gelation (6 s) Fe3+/TA-CNC hydrogel (CTFG hydrogel) based on a self-catalytic system and bilayer selfassembled composites. The CTFG hydrogel has excellent flexibility (800% of strain), fatigue resistance (support 60% compression cycles), antibacterial, and self-adhesive properties (no residue or allergy after peeling off the skin). CTFG@S bilayer composites were formed after electrospun silk fibroin (SF) membranes were prepared and adhesive with CTFG hydrogels. The CTFG@S bilayer composites had significant UV-shielding (99.95%), tensile strain (210.9 KPa), and sensitive humidity-sensing properties. Moreover, the integrated structure improved the mechanical properties of electrospun SF membranes. This study would provide a promising strategy for rapidly preparing multifunctional hydrogels for wound dressing.