Citation: Yuanmao Fu, Ziang Wang, Kefan Wu, Feiyang Li, Xian Zhang, Hongyuan Cui, Xiaolin Wang, Hui Guo, Yuezhong Meng. Bio-inspired multifunctional hydrogels with adhesive, anti-bacterial, anti-icing and sensing properties[J]. Chinese Chemical Letters, ;2025, 36(7): 110479. doi: 10.1016/j.cclet.2024.110479 shu

Bio-inspired multifunctional hydrogels with adhesive, anti-bacterial, anti-icing and sensing properties

Yuanmao Fu ^{a, 1} ,
Ziang Wang ^{a, 1} ,
Kefan Wu ^b ,
Feiyang Li ^a ,
Xian Zhang ^a ,
Hongyuan Cui ^a ,
Xiaolin Wang ^{b, *,} ,
Hui Guo ^{a, *,} ,
Yuezhong Meng ^{a, c}

a.
School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
b.
School of Pharmacy, Macau University of Science and Technology, Macao 999078, China
c.
The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province/State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China

xilwang@must.edu.mo

guoh37@mail.sysu.edu.cn

Received Date: 3 July 2024
Revised Date: 17 September 2024
Accepted Date: 20 September 2024
Available Online: 21 September 2024

Figures(5)

Hydrogel-based flexible sensors are emerging as ideal candidates for wearable devices and soft robotics. However, most current hydrogels possess limited physicochemical properties, which hinder their practical application in long-term and complex scenarios. Herein, inspired by the unique structure of the barnacle, we design multifunctional poly(DMAPA-co-PHEA) hydrogels (CP hydrogels) by employing multiple physical crosslinks in the presence of Ag nanoparticles and NaCl additives. Owing to the synergistic effect of cation-π interactions, hydrophobic interactions, and ionic bonds, the CP hydrogels exhibit high stretchability (strain up to 1430%), strong adhesion (22.8 kPa), satisfactory antibacterial activity, stable anti-icing ability (< 20 kPa after 20 icing-deicing cycles), and high electrical conductivity (18.5 mS/cm). Additionally, the CP hydrogels show fast and sensitive responsiveness and cycling stability and can attach directly to human skin to accurately detect both human motions and tiny physiological signals as a flexible wearable sensor. Collectively, this work significantly contributes a straightforward and efficient design strategy for the development of multifunctional hydrogels, broadening their application scenarios.
- Hydrogels,
- Multifunction,
- Mechanical performance,
- Adhesive,
- Anti-bacterial activity,
- Anti-icing,
- Wearable sensors
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