4D-Printed Magnetic Responsive Bilayer Hydrogel
Despite its widespread application in targeted drug delivery, soft robotics, and smart screens, magnetic hydrogel still faces challenges from lagging mechanical performance to sluggish response times. In this paper, a methodology of in situ generation of magnetic hydrogel based on 3D printing of pol...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/2/134 |
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| author | Yangyang Li Yuanyi Li Jiawei Cao Peng Luo Jianpeng Liu Lina Ma Guo-Lin Gao Zaixing Jiang |
| author_facet | Yangyang Li Yuanyi Li Jiawei Cao Peng Luo Jianpeng Liu Lina Ma Guo-Lin Gao Zaixing Jiang |
| author_sort | Yangyang Li |
| collection | DOAJ |
| description | Despite its widespread application in targeted drug delivery, soft robotics, and smart screens, magnetic hydrogel still faces challenges from lagging mechanical performance to sluggish response times. In this paper, a methodology of in situ generation of magnetic hydrogel based on 3D printing of poly-N-isopropylacrylamide (PNIPAM) is presented. A temperature-responsive PNIPAM hydrogel was prepared by 3D printing, and Fe<sub>2</sub>O<sub>3</sub> magnetic particles were generated in situ within the PNIPAM network to generate the magnetic hydrogel. By forming uniformly distributed magnetic particles in situ within the polymer network, 3D printing of customized magnetic hydrogel materials was successfully achieved. The bilayer hydrogel structure was designed according to the different swelling ratios of temperature-sensitive hydrogel and magnetic hydrogel. Combined with the excellent mechanical properties of PNIPAM and printable magnetic hydrogel, 4D-printed remote magnetic field triggered shape morphing of bilayers of five-petal flower-shaped hydrogels was presented, and the deformation process was finished within 300 s. |
| format | Article |
| id | doaj-art-b84096b838514f1c90809772ed36bd6e |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-b84096b838514f1c90809772ed36bd6e2025-01-24T13:44:16ZengMDPI AGNanomaterials2079-49912025-01-0115213410.3390/nano150201344D-Printed Magnetic Responsive Bilayer HydrogelYangyang Li0Yuanyi Li1Jiawei Cao2Peng Luo3Jianpeng Liu4Lina Ma5Guo-Lin Gao6Zaixing Jiang7MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, ChinaMIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, ChinaMIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, ChinaJianghuai Advance Technology Center, Hefei 230009, ChinaJianghuai Advance Technology Center, Hefei 230009, ChinaCollege of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaMIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, ChinaMIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, ChinaDespite its widespread application in targeted drug delivery, soft robotics, and smart screens, magnetic hydrogel still faces challenges from lagging mechanical performance to sluggish response times. In this paper, a methodology of in situ generation of magnetic hydrogel based on 3D printing of poly-N-isopropylacrylamide (PNIPAM) is presented. A temperature-responsive PNIPAM hydrogel was prepared by 3D printing, and Fe<sub>2</sub>O<sub>3</sub> magnetic particles were generated in situ within the PNIPAM network to generate the magnetic hydrogel. By forming uniformly distributed magnetic particles in situ within the polymer network, 3D printing of customized magnetic hydrogel materials was successfully achieved. The bilayer hydrogel structure was designed according to the different swelling ratios of temperature-sensitive hydrogel and magnetic hydrogel. Combined with the excellent mechanical properties of PNIPAM and printable magnetic hydrogel, 4D-printed remote magnetic field triggered shape morphing of bilayers of five-petal flower-shaped hydrogels was presented, and the deformation process was finished within 300 s.https://www.mdpi.com/2079-4991/15/2/134intelligent hydrogelmagnetic responsive gels4D printing |
| spellingShingle | Yangyang Li Yuanyi Li Jiawei Cao Peng Luo Jianpeng Liu Lina Ma Guo-Lin Gao Zaixing Jiang 4D-Printed Magnetic Responsive Bilayer Hydrogel Nanomaterials intelligent hydrogel magnetic responsive gels 4D printing |
| title | 4D-Printed Magnetic Responsive Bilayer Hydrogel |
| title_full | 4D-Printed Magnetic Responsive Bilayer Hydrogel |
| title_fullStr | 4D-Printed Magnetic Responsive Bilayer Hydrogel |
| title_full_unstemmed | 4D-Printed Magnetic Responsive Bilayer Hydrogel |
| title_short | 4D-Printed Magnetic Responsive Bilayer Hydrogel |
| title_sort | 4d printed magnetic responsive bilayer hydrogel |
| topic | intelligent hydrogel magnetic responsive gels 4D printing |
| url | https://www.mdpi.com/2079-4991/15/2/134 |
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