数据加载中.....
|
jsp.display-item.identifier=請使用永久網址來引用或連結此文件:
https://irlib.pccu.edu.tw/handle/987654321/44635
|
| 题名: | Dental cement's biological and mechanical properties improved by ZnO nanospheres |
| 作者: | Nguyen, TMT (Thi Minh Thu Nguyen)
Wang, PW (Wang, Pei-Wen)
Hsu, HM (Hsu, Hsiu-Ming)
Cheng, FY (Cheng, Fong-Yu)
Shieh, DB (Shieh, Dar-Bin)
Wong, TY (Wong, Tung-Yiu)
Chang, HJ (Chang, Hsin-Ju) |
| 贡献者: | 化學系 |
| 关键词: | ZINC-OXIDE NANOPARTICLES
ANTIBACTERIAL ACTIVITY
LUTING CEMENT
SOLUBILITY
TOXICITY
SUSPENSIONS
STRENGTH
CONCRETE
BEHAVIOR |
| 日期: | 2019-04 |
| 上传时间: | 2019-06-25 11:53:49 (UTC+8) |
| 摘要: | Metal oxide nanoparticles are a new class of important materials used in a wide variety of biomedical applications. Bulk zinc oxide (ZnO) particles have been used for temporal or permanent luting cement because of their excellent mechanical strength and biocompatibility. ZnO nanoparticles have distinct optical and antibacterial properties and a high surface-to-volume ratio. We investigated the mechanical and antibacterial properties of luting cement with different ratios of ZnO nanospheres. We showed that luting cement with 5% and 10% ZnO nanospheres was less soluble in low-pH (pH 3) artificial saliva. Antibacterial activity was 40% higher for Streptococcus mutans and 90% higher for Porphyromonas gingivalis when > 10% (w/v) of the bulk particles were replaced with ZnO nanospheres in ZnO polycarboxylate cement. ZnO nanospheres were also biocompatible with mammalian cells. Additionally, the compressive strength was 1.2 times greater and the diametral tensile strength was 1.5 times greater for cements with 10% ZnO nanospheres than for conventional ZnO polycarboxylate cement. We propose a new method for improving dental luting cement by integrating it with ZnO nanospheres. This method simultaneously adds their greater antibacterial, mechanical, and acid resistance properties and retains an outstanding degree of biocompatibility. |
| 關聯: | Materials Science and Engineering: C
Volume 97, April 2019, Pages 116-123 |
| 显示于类别: | [化學系所] 期刊論文
|
文件中的档案:
| 档案 |
描述 |
大小 | 格式 | 浏览次数 |
|---|
| index.html | | 0Kb | HTML | 167 | 检视/开启 |
|
在CCUR中所有的数据项都受到原著作权保护.
|
