Bioinspired Anti-Icing Hydrogel Enabled by Ice Nucleating Protein

被引：37

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

页码：104 / 111

页数：8

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