机构:[1]Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu 610081, China[2]Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China RESEARCH ARTICLE重庆医科大学附属第一医院[3]Department of Sports Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China昆明医科大学附属第一医院[4]Internal Medicine-Oncology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China内科科室昆明医科大学附属第一医院[5]Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China浙江大学医学院附属第一医院[6]State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu 610041, China
Three-dimensional (3D) printing has revolutionized the design and production of customized scaffolds, but the minimally invasive implantation of 3D-printed structures into the human body remains challenging. This has prompted the exploration of innovative materials and technical solutions. Shape-memory polymers, as advanced intelligent materials, exhibit considerable potential in minimally invasive surgical applications. Herein, we developed a novel thermosetting shape-memory polymer, poly(L-lactic acid)-trimethylene carbonate-glycolic acid (PLLA-TMC-GA), for the fabrication of bioengineered scaffolds with body temperature-activated shape-memory functionality. We comprehensively evaluated the mechanical properties, thermal stability, shape-memory capabilities, biocompatibility, biodegradability, and 3D printing performance of PLLA-TMC-GA terpolymers with various compositions. The results indicate that PLLA-TMC-GA exhibits exceptional shape-memory performance, adjustable material properties, favorable biocompatibility, and the potential for controlled biodegradation and reabsorption. The use of PLLA-TMC-GA as a biodegradable shape-memory polymer allows the reduction of implant volume, simplifies implantation, and enables on-demand activation at body temperature. These characteristics present new opportunities for the advancement of minimally invasive surgical techniques. (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic) (3D) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) 3D (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)-(sic) (L-(sic)(sic))-(sic)(sic)(sic)(sic)(sic)(sic)(sic)-(sic)(sic)(sic) (PLLA-TMC-GA) (sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)PLLA-TMC-GA(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic) 3D (sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic) PLLA-TMC-GA (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).
基金:
National Natural Science Foundation of China [82402822, 82360427, 82372425, 82072443, 32200559]; Priority Union Foundation of Yunnan Provincial Science and Technology Department and Kunming Medical University [202301AY070001-164]; Natural Science Foundation of Sichuan Province [23NSFSC5880]; Central Government of Sichuan Province Guiding the Special Project of Local Science and Technology Development [2024ZYD0155]
第一作者机构:[1]Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu 610081, China
共同第一作者:
通讯作者:
推荐引用方式(GB/T 7714):
Hu Xulin,Wang Jun,Yang Shuhao,et al.Evaluation of the 3D printable temperature-responsive shape-memory PLTG terpolymers for minimally invasive surgery[J].BIO-DESIGN AND MANUFACTURING.2025,8(5):709-723.doi:10.1631/bdm.2400486.
APA:
Hu, Xulin,Wang, Jun,Yang, Shuhao,Deng, Jun,Feng, Wanyue...&Hu, Ning.(2025).Evaluation of the 3D printable temperature-responsive shape-memory PLTG terpolymers for minimally invasive surgery.BIO-DESIGN AND MANUFACTURING,8,(5)
MLA:
Hu, Xulin,et al."Evaluation of the 3D printable temperature-responsive shape-memory PLTG terpolymers for minimally invasive surgery".BIO-DESIGN AND MANUFACTURING 8..5(2025):709-723