نتایج جستجو برای: bioceramics

تعداد نتایج: 455  

2017
María F. Villegas Lorena Garcia-Uriostegui Ofelia Rodríguez Isabel Izquierdo-Barba Antonio J. Salinas Guillermo Toriz María Vallet-Regí Ezequiel Delgado

This paper proposes a facile strategy for the zwitterionization of bioceramics that is based on the direct incorporation of l-lysine amino acid via the ε-amino group onto mesoporous MCM-41 materials. Fourier transform infrared (FTIR) studies of lysine-grafted MCM-41 (MCM-LYS) simultaneously showed bands at 3080 and 1540 cm-1 and bands at 1625 and 1415 cm-1 corresponding to -NH3+/COO- pairs, whi...

Journal: :Acta biomaterialia 2010
David Grossin Sabrina Rollin-Martinet Claude Estournès Fabrice Rossignol Eric Champion Christèle Combes Christian Rey Chevallier Geoffroy Christophe Drouet

Nanocrystalline apatites analogous to bone mineral are very promising materials for the preparation of highly bioactive ceramics due to their unique intrinsic physico-chemical characteristics. Their surface reactivity is indeed linked to the presence of a metastable hydrated layer on the surface of the nanocrystals. Yet the sintering of such apatites by conventional techniques, at high temperat...

2010
Seung-Bum Lee Ui-Won Jung Youna Choi Otgonbold Jamiyandorj Chang-Sung Kim Yong-Keun Lee Jung-Kiu Chai Seong-Ho Choi

PURPOSE Among available biomaterials, bioceramics have drawn special interest due to their bioactivity and the possibility of tailoring their composition. The degradation rate and formulation of bioceramics can be altered to mimic the compositions of the mineral phase of bone. The aim of this study was to investigate the bone formation effect of amorphous calcium phosphate glass cement (CPGC) s...

Journal: :Journal of the American Ceramic Society 2009

2017

In the early 1980s, scientists at the American Dental Association Le Geros et al. [1] and Brown & Chow [2-5] first explored the possibility of generating a monolithic calcium orthophosphate ceramic at ambient or body temperature via a cementation reaction among one or more component of calcium orthophosphate precursors. Presently this type of materials is referred to as calcium phosphate cement...

Journal: :European review for medical and pharmacological sciences 2016
C-B Han S-C An

OBJECTIVE To explore the application value of injectable bioactive glass in the restoration of the oral bone defect. PATIENTS AND METHODS This study included 58 consecutive patients with oral bone defect > 1 mm, these patients were randomly assigned to a control group (n=26, Hydroxyapatite bioceramics) and an observation group (n=32, Injectable bioactive glass). The purpose of this study was ...

Journal: :Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia 2011
Ali Doostmohammadi Ahmad Monshi Rasoul Salehi Mohammad Hossein Fathi Ehsan Seyedjafari Abbas Shafiee Masoud Soleimani

BACKGROUND In recent years, bioceramics have been favored by biomaterials scientists and researchers. Due to their special and distinctive features, bioactive glass and hydroxyapatite possess a higher place among different types of bioceramics. METHOD In this study, the effect of 63S bioactive glass and bone-derived hydroxyapatite particles on the proliferation of human bone-marrow stem cells...

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