Moisture-Responsive Actuators Based on Hyaluronic Acid with Biocompatibility and Fast Response as Smart Breather Valves AITranslate
Abstract AITranslate
Moisture-responsive actuators with biocompatibility, fast response, and tough interfacial bonding are developed as smart breather valves for humidity management. The proposed actuators are featured with a bilayer structure consisting of a moisture-sensitive methacrylated hyaluronic acid (HAMA) layer and a moisture-inert porous poly(vinylidene fluoride) (PVDF) layer. The HAMA/PVDF bilayer films are fabricated by casting HAMA precursor solutions on the ethanol-treated porous PVDF films first and then converting the precursor solutions into crosslinked HAMA hydrogels via UV-initiated crosslinking. The fabricated HAMA/PVDF bilayer films exhibit rapid, reversible, and repeatable moisture-responsive bending performances upon the change of environmental relative humidity. The molecular weight and mass concentration of HAMA in a precursor solution affect the moisture-responsive actuating speed of the HAMA/PVDF bilayer films, and the fastest response time needed for completing 70% of the moisture-responsive deformation of a HAMA/PVDF bilayer film can be as short as 0.5 s. Due to the fast moisture-responsive bending property and biocompatibility, the HAMA/PVDF bilayer films are successfully developed into smart breather valves by designing and patterning them into fence-like structures and then equipped on the outdoor masks for efficient management of humidity inside the masks. The proposed moisture-responsive actuators show great potential in various applications, especially those related to environmental humidity management.
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DOI：https://doi.org/10.1021/acsapm.2c01772
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Moisture-responsive actuators with biocompatibility, fast response, and tough interfacial bonding are developed as smart breather valves for humidity management. The proposed actuators are featured with a bilayer structure consisting of a moisture-sensitive methacrylated hyaluronic acid (HAMA) layer and a moisture-inert porous poly(vinylidene fluoride) (PVDF) layer. The HAMA/PVDF bilayer films are fabricated by casting HAMA precursor solutions on the ethanol-treated porous PVDF films first and then converting the precursor solutions into crosslinked HAMA hydrogels via UV-initiated crosslinking. The fabricated HAMA/PVDF bilayer films exhibit rapid, reversible, and repeatable moisture-responsive bending performances upon the change of environmental relative humidity. The molecular weight and mass concentration of HAMA in a precursor solution affect the moisture-responsive actuating speed of the HAMA/PVDF bilayer films, and the fastest response time needed for completing 70% of the moisture-responsive deformation of a HAMA/PVDF bilayer film can be as short as 0.5 s. Due to the fast moisture-responsive bending property and biocompatibility, the HAMA/PVDF bilayer films are successfully developed into smart breather valves by designing and patterning them into fence-like structures and then equipped on the outdoor masks for efficient management of humidity inside the masks. The proposed moisture-responsive actuators show great potential in various applications, especially those related to environmental humidity management.
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| GB/T 7714-2015 | [1] XinYu Tang, Zhuang Liu, WenYing Liu, et al. ACS Applied Polymer Materials, 2023(5). DOI:10.1021/acsapm.2c01772. |
| MLA | [1] XinYu Tang, et al., ACS Applied Polymer Materials, no. 5, 2023, https://doi.org/10.1021/acsapm.2c01772. |
| APA | [1] XinYu Tang, Zhuang Liu, WenYing Liu, XingQun Pu, LuYue Liu, SiKe Chen, Rui Xie, XiaoJie Ju, Wei Wang, & LiangYin Chu. (2023). ACS Applied Polymer Materials(5). https://doi.org/10.1021/acsapm.2c01772 |
| IEEE | [1] XinYu Tang, Zhuang Liu, WenYing Liu, XingQun Pu, LuYue Liu, SiKe Chen, Rui Xie, XiaoJie Ju, Wei Wang, and LiangYin Chu, ACS Applied Polymer Materials, no. 5, 2023, doi: 10.1021/acsapm.2c01772. keywords: {moistureresponsive actuators;hyaluronic acid;bilayer films;moistureresponsive bending;smart breather valves} |