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Polylactic Acid/Nanostructured Si-Substituted ß-Tricalcium Phosphate Composites for Biodegradable Fixation Medical Devices.
Yoo, Kyung-Hyeon; Cho, Hoon-Sang; Kim, Dong-Hyun; Lee, Jong Kook; Yong-Il, Kim; Hwang, Kyu-Hong; Yoon, Seog-Young.
Afiliação
  • Yoo KH; School of Materials Science and Engineering, Pusan National University, Busan, South Korea.
  • Cho HS; R&D Center, Upex. Med Co., Ltd., Anyang, Gyeonggi-do, South Korea.
  • Kim DH; R&D Center, Upex. Med Co., Ltd., Anyang, Gyeonggi-do, South Korea.
  • Lee JK; Department of Advanced Materials Engineering, Chosun University, Gwangju, South Korea.
  • Yong-Il K; Department of Orthodontics, School of Dentistry, Pusan National University, South Korea.
  • Hwang KH; School of Nano and Advanced Materials, Gyeongsang National University, Jinju 660-701, South Korea.
  • Yoon SY; School of Nano and Advanced Materials, Gyeongsang National University, Jinju 660-701, South Korea.
J Nanosci Nanotechnol ; 18(2): 856-860, 2018 Feb 01.
Article em En | MEDLINE | ID: mdl-29448506
Organic/inorganic biocomposite materials for biodegradable fixation medical devices require osteoconductivity, biocompatibility, and adequate mechanical properties with biodegradation behavior. The objective of this study was to investigate the effect of Si ions substituted in ß-tricalcium phosphate (ß-TCP) on the mechanical properties of organic/inorganic biocomposites. Biodegradable composite materials were prepared with polylactic acid (PLA) as the matrix and nano Si-substituted ß-TCP as the osteoconductive filler by solvent mixing and conventional molding. The nanostructured Si-substituted ß-TCP powders were synthesized by co-precipitation, controlling the quantity of Si ions. The amount of nanostructured Si-substituted ß-TCP powders in composites was varied in the 0-40 wt% range and the material properties were compared with those of pure ß-TCP/PLA composites. The influence of Si ions on the mechanical properties of the composites was evaluated by tensile and flexural tests.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poliésteres / Fosfatos de Cálcio / Nanoestruturas Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poliésteres / Fosfatos de Cálcio / Nanoestruturas Idioma: En Ano de publicação: 2018 Tipo de documento: Article