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An Amorphous Peri-Implant Ligament with Combined Osteointegration and Energy-Dissipation
Hou, Junyu1; Xiao, Zuohui2; Liu, Zengqian3; Zhao, Hewei1; Zhu, Yankun3; Guo, Lin1; Zhang, Zhefeng3; Ritchie, Robert O.4; Wei, Yan2; Deng, Xuliang2
Corresponding AuthorGuo, Lin(guolin@buaa.edu.cn) ; Ritchie, Robert O.(roritchie@lbl.gov) ; Wei, Yan(kqweiyan@bjmu.edu.cn) ; Deng, Xuliang(kqdengxuliang@bjmu.edu.cn)
2021-09-27
Source PublicationADVANCED MATERIALS
ISSN0935-9648
Pages12
AbstractProgress toward developing metal implants as permanent hard-tissue substitutes requires both osteointegration to achieve load-bearing support, and energy-dissipation to prevent overload-induced bone resorption. However, in existing implants these two properties can only be achieved separately. Optimized by natural evolution, tooth-periodontal-ligaments with fiber-bundle structures can efficiently orchestrate load-bearing and energy dissipation, which make tooth-bone complexes survive extremely high occlusion loads (>300 N) for prolonged lifetimes. Here, a bioinspired peri-implant ligament with simultaneously enhanced osteointegration and energy-dissipation is presented, which is based on the periodontium-mimetic architecture of a polymer-infiltrated, amorphous, titania nanotube array. The artificial ligament not only provides exceptional osteoinductivity owing to its nanotopography and beneficial ingredients, but also produces periodontium-similar energy dissipation due to the complexity of the force transmission modes and interface sliding. The ligament increases bone-implant contact by more than 18% and simultaneously reduces the effective stress transfer from implant to peri-implant bone by approximate to 30% as compared to titanium implants, which as far as is known has not previously been achieved. It is anticipated that the concept of an artificial ligament will open new possibilities for developing high-performance implanted materials with increased lifespans.
Keywordamorphous titania nanotubes energy dissipation osteointegration tooth periodontal ligament
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; National Youth Topnotch Talent Support Program ; Beijing Municipal Science & Technology Commission Projects ; Peking University Medicine Fund
DOI10.1002/adma.202103727
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2020YFA0710401] ; National Key R&D Program of China[2020YFA0710403] ; National Key R&D Program of China[2020YFA0710404] ; National Key R&D Program of China[2018YFC1105301] ; National Key R&D Program of China[2018YFC1105302] ; National Key R&D Program of China[2018YFC1105304] ; National Natural Science Foundation of China[51532001] ; National Natural Science Foundation of China[51772011] ; National Natural Science Foundation of China[51802010] ; National Natural Science Foundation of China[52073008] ; National Natural Science Foundation of China[81922019] ; National Natural Science Foundation of China[51772006] ; National Natural Science Foundation of China[31670993] ; National Youth Topnotch Talent Support Program[QNBJ2019-3] ; Beijing Municipal Science & Technology Commission Projects[Z181100002018001] ; Peking University Medicine Fund[PKU2020LCXQ009]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000700091200001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166764
Collection中国科学院金属研究所
Corresponding AuthorGuo, Lin; Ritchie, Robert O.; Wei, Yan; Deng, Xuliang
Affiliation1.Beihang Univ, Sch Chem, Beijing Adv Innovat Ctr Biomed Engn, Beijing 100191, Peoples R China
2.Peking Univ Sch & Hosp Stomatol, Dept Geriatr Dent, Natl Engn Lab Digital & Mat Technol Stomatol, NMPA Key Lab Dent Mat, Beijing 100081, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
4.Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA
Recommended Citation
GB/T 7714
Hou, Junyu,Xiao, Zuohui,Liu, Zengqian,et al. An Amorphous Peri-Implant Ligament with Combined Osteointegration and Energy-Dissipation[J]. ADVANCED MATERIALS,2021:12.
APA Hou, Junyu.,Xiao, Zuohui.,Liu, Zengqian.,Zhao, Hewei.,Zhu, Yankun.,...&Deng, Xuliang.(2021).An Amorphous Peri-Implant Ligament with Combined Osteointegration and Energy-Dissipation.ADVANCED MATERIALS,12.
MLA Hou, Junyu,et al."An Amorphous Peri-Implant Ligament with Combined Osteointegration and Energy-Dissipation".ADVANCED MATERIALS (2021):12.
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