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Chen Q, Zou B, Wang X, Zhou X, Yang G, Lai Q, Zhao Y. SLA-3d printed building and characteristics of GelMA/HAP biomaterials with gradient porous structure. J Mech Behav Biomed Mater 2024; 155:106553. [PMID: 38640694 DOI: 10.1016/j.jmbbm.2024.106553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/07/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Developing a gradient porous scaffold similar to bone structure is gaining increasing attention in bone tissue engineering. The GelMA/HAP hydrogel has demonstrated potential in bone repair. Although 3D printing can build GelMA/HAP with porous structure, fabricating porous GelMA/HAP with gradient porosity and pore size in one step remains challenging. In this paper, a gradient porous structure with controllable pore size, based on gelatin methacryloyl (GelMA) and hydxroxyapatite (HAP), was engineered and printed using stereolithography. Firstly, the GelMA and HAP were mixed to prepare a hydrogel with a solid content ranging from 10 wt% to 50 wt% for stereolithography. Taking advantage of the sol-gel characteristics of GelMA/HAP hydrogel, GelMA/HAP was fed on the workbench through a combination of extrusion and paving to form a thin layer. During the curing of each layer, the hydrogel exposed to the curing of a single UV beam immediately solidified, forming a highly interconnected porous structure. Additionally, the hydrogel outside the scanning range could be further polymerized to form a relatively dense structure due to the residual laser energy. Finally, without gradient structural design or changing printing parameters, the gradient porous structure of bone-like could be printed in a single-step process. By adjusting the curing parameters of the single UV beam and the concentration and size of ceramic in the hydrogel, the printed pore diameter of the spongy structure could be controlled within the range of 50-260 μm, while the thickness of the compact area could be adjusted within 130-670 μm.
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Affiliation(s)
- Qinghua Chen
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China; Additive Manufacturing Research Center of Shandong University of National Engineering Research Center of Rapid Manufacturing, PR China
| | - Bin Zou
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China; Additive Manufacturing Research Center of Shandong University of National Engineering Research Center of Rapid Manufacturing, PR China.
| | - Xinfeng Wang
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China; Additive Manufacturing Research Center of Shandong University of National Engineering Research Center of Rapid Manufacturing, PR China
| | - Xingguo Zhou
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China; Additive Manufacturing Research Center of Shandong University of National Engineering Research Center of Rapid Manufacturing, PR China
| | - Gongxian Yang
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China; Additive Manufacturing Research Center of Shandong University of National Engineering Research Center of Rapid Manufacturing, PR China
| | - Qingguo Lai
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong Province, PR China; Research Center of 3D Printing in Stomatology of Shandong University, PR China
| | - Yun Zhao
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong Province, PR China; Research Center of 3D Printing in Stomatology of Shandong University, PR China
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Dai T, Yu Z, Yuan S, Zou H, Liu P. Gradient structure polyimide/graphene composite aerogels fabricated by
layer‐by‐layer
assembly and unidirectional freezing. J Appl Polym Sci 2021. [DOI: 10.1002/app.50153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tianwen Dai
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Zhi Yu
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Shuaiwei Yuan
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Huawei Zou
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Pengbo Liu
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
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Zhang Y, Fang W, Zhao Y, Liu Z, Chen S, Hu C, Liu J, Liu X. Electric field‐driven preparation of elastomer/plastic nanoparticles gradient films with enhanced damping property. J Appl Polym Sci 2020. [DOI: 10.1002/app.48401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuanfang Zhang
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan University Wuhan 430056 China
- Flexible Display Materials and Technology Co‐Innovation Centre of Hubei ProvinceJianghan University Wuhan 430056 China
| | - Wei Fang
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan University Wuhan 430056 China
- Flexible Display Materials and Technology Co‐Innovation Centre of Hubei ProvinceJianghan University Wuhan 430056 China
| | - Yichun Zhao
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan University Wuhan 430056 China
- Flexible Display Materials and Technology Co‐Innovation Centre of Hubei ProvinceJianghan University Wuhan 430056 China
| | - Zhihong Liu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan University Wuhan 430056 China
- Flexible Display Materials and Technology Co‐Innovation Centre of Hubei ProvinceJianghan University Wuhan 430056 China
| | - Shaoyun Chen
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan University Wuhan 430056 China
- Flexible Display Materials and Technology Co‐Innovation Centre of Hubei ProvinceJianghan University Wuhan 430056 China
| | - Chenlong Hu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan University Wuhan 430056 China
- Flexible Display Materials and Technology Co‐Innovation Centre of Hubei ProvinceJianghan University Wuhan 430056 China
| | - Jiyan Liu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan University Wuhan 430056 China
- Flexible Display Materials and Technology Co‐Innovation Centre of Hubei ProvinceJianghan University Wuhan 430056 China
| | - Xueqing Liu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan University Wuhan 430056 China
- Flexible Display Materials and Technology Co‐Innovation Centre of Hubei ProvinceJianghan University Wuhan 430056 China
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