Bioinspired Anti-Icing Hydrogel Enabled by Ice Nucleating Protein

被引：36
作者：
Wang, Zhanhui [1 ]
Lin, Baixue [2 ]
Sheng, Siyu [1 ]
Tan, Sicong [3 ]
Wang, Pengchao [2 ]
Tao, Yong [2 ]
Liu, Zhang [1 ]
He, Zhiyuan [1 ]
Wang, Jianjun [1 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Inst Microbiol, CAS Key Lab Microbial Physiol & Metab Engn, State Key Lab Microbial Resources, Beijing 100101, Peoples R China
[3] Chinese Acad Sci, Heat & Mass Transfer Ctr, Inst Engn Thermophys, Beijing 100190, Peoples R China
[4] Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China
来源：
CCS CHEMISTRY | 2022年 / 4卷 / 01期
基金：
国家重点研发计划;
关键词：
ice-nucleating proteins; ice nucleation; anti-icing; hydrogel; multifunctional; INHIBITION;
D O I：
10.31635/ccschem.021.202000648
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ice-nucleating proteins (INPs) are the most effective ice-nucleating agents that play a significant role in preventing freeze injuries in freeze-tolerant organisms. INPs promote ice nucleation in the extracellular space, harvesting water from cells due to the low vapor pressure of ice compared with water, thereby protecting freeze-tolerant organisms from intracellular freezing. The antifreeze mechanism of INPs offers a unique opportunity to inhibit large-scale freezing by localized control of ice formation, with valuable enlightenment in anti-icing material sciences. By learning from nature, we transferred the excellent ice nucleation-facilitating capability of INPs along with an antifreeze concept of spatially controlled ice nucleation to anti-icing material design, fabricating icephobic coatings that consisted of patterned hydrogel-encapsulated INP (PHINP). The ice patterns were templated by patterned PHINPs via the tuning of ice nucleation so that the ice coverage fraction could be controlled by <30% on almost all PHINP-coated surfaces. Combining PHINP with solar-thermal conversion surfaces endowed the composite coatings with high anti-icing performances at any time of the day.
引用
收藏
页码：104 / 111
页数：8
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