Evaluating the bioactivity of a hydroxyapatite-incorporated polyetheretherketone biocomposite
نویسندگان
چکیده
منابع مشابه
Preparation, characterization, and in vitro osteoblast functions of a nano-hydroxyapatite/polyetheretherketone biocomposite as orthopedic implant material
A bioactive composite was prepared by incorporating 40 wt% nano-hydroxyapatite (nHA) into polyetheretherketone (PEEK) through a process of compounding, injection, and molding. The mechanical and surface properties of the nHA/PEEK composite were characterized, and the in vitro osteoblast functions in the composite were investigated. The mechanical properties (elastic modulus and compressive stre...
متن کاملTensile Properties of Hydroxyapatite Whisker Reinforced Polyetheretherketone
Polyetheretherketone (PEEK) was reinforced with 0-40 vol% hydroxyapatite (HA) whiskers using a novel powder processing and compression molding technique. A powder mixture was uniaxially pressed into a composite powder compact and compression molded into a flat composite bar using an open-channel die, such that the HA whiskers exhibited a preferred orientation along the length of the bar and ten...
متن کاملBioactivity of 2′-deoxyinosine-incorporated aptamer AS1411
Aptamers can be chemically modified to enhance nuclease resistance and increase target affinity. In this study, we performed chemical modification of 2'-deoxyinosine in AS1411, an anti-proliferative G-rich oligodeoxynucleotide aptamer, which binds selectively to the nucleolin protein. Its function was augmented when 2'-deoxyinosine was incorporated at positions 12, 13, 15, and 24 of AS1411, res...
متن کاملStructure evolution and properties of biogenic hydroxyapatite-based biocomposite
Two-step sintering has been used to investigate the structure evolution and properties of the biogenic HA/glass composite containing 50 wt.% Na2O-B2O3-SiO2-based glass. The borosilicate glass facilitated the sintering process due to the viscous glass flow and stabilized the HA phase against thermal decomposition. It has been established that the structure significantly changes, becoming more ho...
متن کاملProcessing and tensile properties of hydroxyapatite-whisker-reinforced polyetheretherketone.
Polyetheretherketone (PEEK) was reinforced with 0-50 vol% hydroxyapatite (HA) whiskers using a novel powder processing and compression molding technique which enabled uniform mixing at high whisker content. Texture analysis showed that viscous flow during compression molding produced a preferred orientation of whiskers along the specimen tensile axis. Consequently, the elastic modulus or ultima...
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ژورنال
عنوان ژورنال: Journal of Orthopaedic Surgery and Research
سال: 2019
ISSN: 1749-799X
DOI: 10.1186/s13018-019-1069-1