Tough, Transparent, and Slippery PVA Hydrogel Led by Syneresis | |
Liu DS(刘德胜)4,5; Cao YF(曹宇菲)3; Jiang P(蒋盼)5; Wang YX(汪祎贤)2; Lu YZ(鲁耀钟)5; Ji ZY(姬忠莹)1,5; Wang XL(王晓龙)1,4,5; Liu WM(刘维民)4,5 | |
刊名 | Small |
2023-01-02 | |
卷号 | 19期号:14页码:2206819 |
关键词 | mechanical robustness salting-out slippery hydrogels synergistic effect of crystallization transparency |
DOI | 10.1002/smll.202206819 |
英文摘要 | Slippery and transparent polyvinyl alcohol (PVA) hydrogels with mechanical robustness exhibit broad applications in artificial biological soft tissues, flexible wearable electronics, and implantable biomedical devices. Most of the current PVA hydrogels, however, are unable to integrate these features, which compromises its performance in biological and engineering applications. To achieve such purpose, herein, a novel tactic is proposed, salting-out-after-syneresis of PVA, to realize a mechanically robust and highly transparent slippery PVA hydrogel. The syneresis of PVA sol is first conducted to form highly dense and transparent PVA polymer networks, then the salting-out effect tunes the aggregation of the polymer chains to rapidly induce the phase separation and crystallization. The resultant hydrogels show the transparency up to 98% in the visible region, the tribological coefficient down to 0.0081, and the excellent mechanical properties with strength, modulus, and toughness of 26.72 ± 1.05, 6.66 ± 0.29 MPa, and 55.21 ± 1.62 MJ m−3, respectively. To reveal the potentials, PVA contact lens that combine remarkable lubrication, anti-protein adhesion, biocompatibility, and drug-loading functions are demonstrated. This strategy provides a simple and new avenue for developing the mechanically robust, transparent, and hydrated hydrogels, showing the potential in biomedicine and wearable devices. |
URL标识 | 查看原文 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.licp.cn/handle/362003/30185] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Liu DS(刘德胜); Wang YX(汪祎贤); Liu WM(刘维民) |
作者单位 | 1.Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering Yantai 264006, China 2.School of Chemical Engineering Northwest Minzu University Lanzhou 730030, China 3.School of Chemistry Xi'an Jiaotong University Xi'an 710049, China 4.Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049, China 5.State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000, China |
推荐引用方式 GB/T 7714 | Liu DS,Cao YF,Jiang P,et al. Tough, Transparent, and Slippery PVA Hydrogel Led by Syneresis[J]. Small,2023,19(14):2206819. |
APA | Liu DS.,Cao YF.,Jiang P.,Wang YX.,Lu YZ.,...&Liu WM.(2023).Tough, Transparent, and Slippery PVA Hydrogel Led by Syneresis.Small,19(14),2206819. |
MLA | Liu DS,et al."Tough, Transparent, and Slippery PVA Hydrogel Led by Syneresis".Small 19.14(2023):2206819. |
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