Synthesis and characterization of mesoporous zinc oxide nanoparticles and evaluation of their biocompatibility in L929 fibroblasts

被引:6
作者
Jowkar, Zahra [1 ]
Moaddeli, Ali [2 ]
Shafiei, Fereshteh [1 ]
Tadayon, Tara [3 ]
Hamidi, Seyed Ahmadreza [3 ]
机构
[1] Shiraz Univ Med Sci, Oral & Dent Dis Res Ctr, Sch Dent, Dept Operat Dent, Shiraz, Iran
[2] Legal Med Org, Legal Med Res Ctr, Tehran, Iran
[3] Shiraz Univ Med Sci, Sch Dent, Dept Operat Dent, Shiraz, Iran
关键词
biocompatibility; mesoporous; zinc oxide nanoparticles; BOND STRENGTH; SILVER; RESIN; ANTIBACTERIAL; CHLORHEXIDINE; CYTOTOXICITY; COMPOSITES; DENTIN; CAVITY; ZNO;
D O I
10.1002/cre2.844
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objectives: This study aimed to synthesize and characterize mesoporous zinc oxide nanoparticles (ZnO NPs) and also to evaluate the cytotoxicity of mesoporous ZnO NPs on L929 mouse fibroblast cell lines using 3-(4,5- dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. Materials and Methods: The synthesized mesoporous ZnO NPs were extensively characterized using X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) analysis, field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectra (EDAX), Fourier-transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS). The cytotoxicity of mesoporous ZnO NPs was assessed by MTT assay. The study groups for cytotoxicity assay were normal saline, 0.1% calcined mesoporous ZnO NP solution, 1% calcined mesoporous ZnO NP solution, 0.1% noncalcined mesoporous ZnO NP solution, 1% noncalcined mesoporous ZnO NP solution, 0.1% ZnO NP solution, 1% ZnO NP solution, 2% chlorhexidine, and phosphate-buffered saline (PBS). The percentages of means +/- standard deviation of viable cells were analyzed. Results: Characterization of mesoporous ZnO NPs revealed that all the particles were in a more or less spherical shape with a wide particle size distribution of 70-100 nm. TEM image showed the uniformed and aggregated ZnO NPs with a typical size of 10-15 nm. BET analysis showed a mesoporous structure for the prepared mesoporous ZnO NPs. According to the MTT assay, chlorhexidine had the lowest cell viability percentage. Cell viability percentages of 0.1% mesoporous ZnO NP solutions (calcined and noncalcined) were statistically, significantly higher than 0.1% ZnO NP solution (p < .05). Cell viability percentages of 0.1% calcined and noncalcined mesoporous ZnO NP solutions and 0.1% ZnO NP solution were statistically, significantly higher than the 1% solutions (p < .05). Conclusion: Mesoporous ZnO NPs exhibited less cytotoxicity against L929 mouse fibroblast cell lines compared to CHX and ZnO NPs, hence are safe to use.
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页数:11
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