High toughness resorbable brushite-gypsum fiber-reinforced cements
المؤلف | Moussa H. |
المؤلف | El Hadad A. |
المؤلف | Sarrigiannidis S. |
المؤلف | Saad A. |
المؤلف | Wang M. |
المؤلف | Taqi D. |
المؤلف | Al-Hamed F.S. |
المؤلف | Salmer�n-S�nchez M. |
المؤلف | Cerruti M. |
المؤلف | Tamimi F. |
تاريخ الإتاحة | 2022-05-31T19:01:19Z |
تاريخ النشر | 2021 |
اسم المنشور | Materials Science and Engineering C |
المصدر | Scopus |
المعرّف | http://dx.doi.org/10.1016/j.msec.2021.112205 |
الملخص | The ideal bone substitute material should be mechanically strong, biocompatible with a resorption rate matching the rate of new bone formation. Brushite (dicalcium phosphate dihydrate) cement is a promising bone substitute material but with limited resorbability and mechanical properties. To improve the resorbability and mechanical performance of brushite cements, we incorporated gypsum (calcium sulfate dihydrate) and diazonium-treated polyglactin fibers which are well-known for their biocompatibility and bioresorbability. Here we show that by combining brushite and gypsum, we were able to fabricate biocompatible composite cements with high fracture toughness (0.47 MPa�m1/2) and a resorption rate that matched the rate of new bone formation. Adding functionalized polyglactin fibers to this composite cement further improved the fracture toughness up to 1.00 MPa�m1/2. XPS and SEM revealed that the improvement in fracture toughness is due to the strong interfacial bonding between the functionalized fibers and the cement matrix. This study shows that adding gypsum and functionalized polyglactin fibers to brushite cements results in composite biomaterials that combine high fracture toughness, resorbability, and biocompatibility, and have great potential for bone regeneration. |
اللغة | en |
الناشر | Elsevier Ltd |
الموضوع | Biocompatibility Calcium compounds Cements Fiber bonding Fracture toughness Gypsum Bone formation Bone substitute materials Brushite Diazonia treatment Functionalized Gypsum cement Polyglactin Polyglactin fiber Resorbability Resorption rates Fibers bone cement calcium phosphate calcium phosphate, dibasic, dihydrate calcium sulfate materials testing Bone Cements Calcium Phosphates Calcium Sulfate Materials Testing |
النوع | Article |
رقم المجلد | 127 |
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