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Black phosphorus-incorporated novel Ti-12Mo-10Zr implant for multimodal treatment of osteosarcoma

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机构: [1]College of Medical Technology and Engineering, Henan University of Science and Technology, 263 Kaiyuan Avenue, Luoyang 471023, China [2]Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
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关键词: β-type Ti-12Mo-10Zr alloy  Microarc oxidation  Black phosphorus  Bone regeneration  Tumor inhibition

摘要:
The repair and reconstruction of large bone defects after bone tumor resection is still a great clinical challenge. At present, orthopedic implant reconstruction is the mainstream treatment for repairing bone defects. However, according to clinical feedback, local tumor recurrence and nonunion of bone graft are common reasons leading to the failure of bone defect repair and reconstruction after bone tumor resection, which seriously threaten the physical and mental health of patients. On this basis, here the self-developed low modulus Ti-12Mo-10Zr alloy (TMZ) was chosen as substrate material. To improve its biological activity and osteointegration, calcium, oxygen, and phosphorus co-doped microporous coating was prepared on TMZ alloy by microarc oxidation (MAO). Then, black phosphorus (BP) nanosheets were incorporated onto MAO treated TMZ alloy to obtain multifunctional composites. The obtained BP-MAO-TMZ implant exhibited excellent photothermal effects and effective ablation of osteosarcoma cancer cells under the irradiation of 808 nm near infrared laser, while no photothermal or therapeutic effects were observed for TMZ alloy. Meanwhile, the structure/component bionic coating obtained after MAO treatment as well as the P-driven in situ biomineralization performance after incorporation of BP nanosheets endowed BP-MAO-TMZ implant with synergistic promoting effect on MC3T3-E1 osteoblasts' activity, proliferation and differentiation ability. This study is expected to provide effective clinical solutions for problems of difficult bone regeneration and tumor recurrence after tumor resection in patients with bone tumors and to solve a series of medical problems such as poor prognosis and poor postoperative quality of patients life with malignant bone tumors.© 2023. The Author(s), under exclusive licence to Springer Nature B.V.

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出版当年[2023]版:
大类 | 3 区 生物学
小类 | 4 区 生化与分子生物学
最新[2023]版:
大类 | 3 区 生物学
小类 | 4 区 生化与分子生物学
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第一作者机构: [1]College of Medical Technology and Engineering, Henan University of Science and Technology, 263 Kaiyuan Avenue, Luoyang 471023, China
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