中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (25): 4609-4615.doi: 10.3969/j.issn.2095-4344.2013.25.007

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

纳米载银抗菌剂与四针状氧化锌抗白色念珠菌的性能

肖  月,康  梁,吕  庆,于博文,马英君   

  1. 佳木斯大学附属口腔医院,黑龙江省佳木斯市  154002
  • 收稿日期:2013-01-06 修回日期:2013-01-22 出版日期:2013-06-18 发布日期:2013-06-18
  • 通讯作者: 马英君,副主任护师,佳木斯大学附属口腔医院,黑龙江省佳木斯市 154002
  • 作者简介:肖月,男,1962年生,吉林省永吉市人,汉族,1985年佳木斯医学院口腔系毕业,主任医师,教授,主要从事口腔修复学研究。 kangliang008@sina.com

Properties of nanometer silver antibacterial agent and tetrapod-like zinc oxide antibacterial agent against Candida albicans 

Xiao Yue, Kang Liang, Lü Qing, Yu Bo-wen, Ma Ying-jun   

  1. Stomatology Hospital, Jiamusi University, Jiamusi  154002, Heilongjiang Province, China
  • Received:2013-01-06 Revised:2013-01-22 Online:2013-06-18 Published:2013-06-18
  • Contact: Ma Ying-jun, Associate chief nurse, Stomatology Hospital, Jiamusi University, Jiamusi 154002, Heilongjiang Province, China
  • About author:Xiao Yue, Chief physician, Professor, Stomatology Hospital, Jiamusi University, Jiamusi 154002, Heilongjiang Province, China kangliang008@sina.com

摘要:

背景:口腔修复材料室温固化甲基丙烯酸甲酯的表面结构疏松多孔,极易附着各种细菌、微生物导致患者义齿性口炎的发生,所以在甲基丙烯酸甲酯中加入抗菌剂成为国内外学者研究的热点。
目的:比较加入纳米载银抗菌剂与四针状氧化锌抗菌剂后,室温固化甲基丙烯酸甲酯对白色念珠菌的抗菌活性。
方法:采用对倍稀释法测定纳米载银抗菌剂与四针状氧化锌抗菌剂对白色念珠菌的最小杀菌浓度。将纳米磷酸锆载银抗菌粉体与四针状氧化锌抗菌剂分别以0%,1%,2%,3%的质量比加入到室温固化甲基丙烯酸甲酯粉剂中,检测各组试件对白色念珠菌的抗菌率。
结果与结论:纳米载银抗菌剂对白色念珠菌的最小杀菌浓度为 40 g/L,四针状氧化锌抗菌剂对白色念珠菌的最小杀菌浓度为25 g/L。未加入纳米载银抗菌剂或四针状氧化锌抗菌剂的甲基丙烯酸甲酯几乎无抗菌活性,加入两种抗菌剂后其抗菌活性明显增加,随着加入抗菌剂质量比的增加,抗菌活性逐渐增强;当抗菌剂质量比增加到3%时,加入纳米载银抗菌剂的甲基丙烯酸甲酯抗菌率为92.23%,加入四针状氧化锌抗菌剂的甲基丙烯酸甲酯抗菌率为98.23%。表明纳米载银抗菌剂与四针状氧化锌抗菌剂对白色念珠菌均有抗菌效果,且四针状氧化锌抗菌剂比纳米载银系抗菌剂抗菌效果好。

关键词: 生物材料, 组织工程口腔材料, 甲基丙烯酸甲酯, 纳米载银, 四针状, 氧化锌, 白色念珠菌, 抗菌剂, 最小杀菌浓度

Abstract:

BACKGROUND: Surface structure of room temperature curing methyl methacrylate is loose and porous, easy to be attached to a variety of bacteria, microbes, leading to the occurrence of denture stomatitis. Thus, antibacterial agent added in methyl methacrylate has been a hot focus in the study.
OBJECTIVE: To compare the antibacterial activity of room temperature curing methyl methacrylate against Candida albicans after addition of the nanometer silver antibacterial agent and tetrapod-like zinc oxide antibacterial agent.
METHODS: Minimum bactericidal concentration of nanometer silver antibacterial agent and tetrapod-like zinc oxide antibacterial agents against Candida albicans was determined by dilution method. The nanometer silver antibacterial agent loaded nanometer zirconium phosphate or tetrapod-like zinc oxide antibacterial agent with 0%, 1%, 2%, 3% mass fraction were added to the room temperature curing methyl methacrylate to detect the antibacterial property against Candida albicans.
RESULTS AND CONCLUSION: The minimum bactericidal concentration of nanometer silver antibacterial agent was 40 g/L. The minimum bactericidal concentration of tetrapod-like zinc oxide agent against Candida albicans was 25 g/L. Methyl methacrylate without addition of nanometer silver antibacterial agent or tetrapod-like zinc oxide antibacterial agent did not have antibacterial activity, and the antibacterial activity significantly increased after addition of the two antibacterial agents. With the increased mass fraction of nanometer silver antibacterial agent or tetrapod-like zinc oxide antibacterial agent, the antibacterial properties of room temperature curing methyl methacrylate increased gradually. At 3% mass fraction, antibacterial rate of methyl methacrylate with nanometer silver antibacterial agent was 92.23%, and the antibacterial rate of methyl methacrylate with the tetrapod-like zinc oxide antibacterial agent was 98.23%. These results indicated that the nanometer silver antibacterial agent and tetrapod-like zinc oxide antibacterial agent have antibacterial effects against Candida albicans, and the tetrapod-like zinc oxide antibacterial agent has a good antibacterial effect compared with the nanometer silver antibacterial agent.

Key words: biomaterials, tissue-engineered oral materials, methyl methacrylate, nanometer silver, tetrapod-like, zinc oxide, Candida albicans, antibacterial agent, minimum bactericidal concentration

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