Influence of nano-silica additions on hydration characteristics and cytotoxicity of calcium aluminate as biomaterial

被引：9

作者：

Abd El-Hamid, H. K. ^{[1
]}

Radwan, M. M. ^{[1
]}

机构：

[1] Natl Res Ctr, Refractories Ceram & Bldg Mat Dept, El Buhouth St, Cairo 12622, Egypt

来源：

HELIYON | 2019年 / 5卷 / 07期

关键词：

Materials science; Calcium aluminate; Nano-SiO2; Biomaterial; Cytotoxicity; Stratlingite; CEMENT; TEMPERATURE; CAAL2O4; POWDER;

D O I：

10.1016/j.heliyon.2019.e02135

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Composites of nano-calcium aluminate 'CA' biocement, synthesized by a solid state reaction, were prepared with 5, 10 and 20 wt.% of nano-SiO2 particles. The influence of nano-SiO2 particle additions on the physico-mechanical properties and hydration characteristics of CA biocement was studied. Calcium ion concentrations and, pH values of the curing medium were measured. The hydration characteristics of pure and composite CA phase were studied by determining the X-ray diffraction (XRD) and scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS). Evaluation of cytotoxicity against the skin normal human cell line BJ-1 was carried out. The results showed that the bulk density and micro-hardness of the composite CA containing 10 wt.% of nano-SiO2 were better than those of pure CA and composite prepared with higher weight percentages of nano-SiO2. Both pure and composite CA bio-cements showed no cytotoxicity, making these materials suitable for medical applications.

引用

页数：7

共 33 条

[1]

[Anonymous], 2004, CEMENT CONCRETE RES, DOI DOI 10.1016/J.CEMCONRES.2003.08.025

[2]

ASTM, 1999, ASTM Designation, C373-88

[3]

Bentsen S., 1990, EFFECT MICROSILICA C, P294

[4] THE EFFECT OF TEMPERATURE UPON THE SETTING BEHAVIOR OF REFRACTORY CALCIUM ALUMINATE CEMENTS [J].

BUSHNELLWATSON, SM ;

SHARP, JH .

CEMENT AND CONCRETE RESEARCH, 1986, 16 (06) :875-884

[5] Study of hydration mechanisms in the high alumina cement - Sodium silicate system [J].

Ding, JA ;

Fu, Y ;

Beaudoin, JJ .

CEMENT AND CONCRETE RESEARCH, 1996, 26 (05) :799-804

[6] Characterization of the Mineral Trioxide Aggregate-Resin Modified Glass Ionomer Cement Interface in Different Setting Conditions [J].

Eid, Ashraf A. ;

Komabayashi, Takashi ;

Watanabe, Etsuko ;

Shiraishi, Takanobu ;

Watanabe, Ikuya .

JOURNAL OF ENDODONTICS, 2012, 38 (08) :1126-1129

[7]

Eye R. W. M. D., 1960, XRAY POWDER PHOTOGRA

[8] Phase formation of CaAl2O4 from CaCO3-Al2O3 powder mixtures [J].

Iftekhar, Shahriar ;

Grins, Jekabs ;

Svensson, Gunnar ;

Loof, Jesper ;

Jarmar, Tobias ;

Botton, Gianluigi A. ;

Andrei, Carmen M. ;

Engqvist, Hakan .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2008, 28 (04) :747-756

[9] High temperature material properties of calcium aluminate cement concrete [J].

Khaliq, Wasim ;

Khan, Hammad Anis .

CONSTRUCTION AND BUILDING MATERIALS, 2015, 94 :475-487

[10]

Kraft L., THESIS

← 1 2 3 4 →