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Ag/ZnO納米復(fù)合抗菌劑解團(tuán)聚工藝及機(jī)制
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國(guó)家自然科學(xué)基金(50572041)；山東省自然科技學(xué)基金(Y2007F64)；山東省教育廳基金(J06A02)；山東省科技攻關(guān)項(xiàng)目(2006GG2203014)


Deaggregation Technology and Mechanism of Ag/ZnO Nano Composite Antibacterial Agent
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    摘要:

    采用沉降實(shí)驗(yàn)、激光粒度分布、透射電鏡等手段，研究PVPK17對(duì)Ag/ZnO納米復(fù)合抗菌劑的解團(tuán)聚的影響及機(jī)制，同時(shí)采用最小抑菌濃度對(duì)解團(tuán)聚前后的抗菌性能進(jìn)行表征。結(jié)果表明：經(jīng)PVPK17解團(tuán)聚后的Ag/ZnO納米復(fù)合抗菌劑可在異丙醇中穩(wěn)定懸浮6 d以上，分散后的Ag/ZnO納米復(fù)合抗菌劑的平均粒度可達(dá)51.3 nm，當(dāng)加入PVPK17的質(zhì)量百分?jǐn)?shù)為40％時(shí)達(dá)到最佳分散效果。用透射電鏡觀測(cè)表明，解團(tuán)聚的Ag/ZnO納米復(fù)合抗菌劑分散較好，在此基礎(chǔ)上建立了PVPk17對(duì)Ag/ZnO納米復(fù)合抗菌劑的解團(tuán)聚模型。抗菌實(shí)驗(yàn)表明，分散后的Ag/ZnO納米復(fù)合抗菌劑的MIC可達(dá)50 mg/L，抗菌性能良好

    Abstract:

    In this paper, a deaggregation technology and its mechanism were studied for the Ag/ZnO nanocomposite antibacterial agent added with PVPK17 by sedimentation experiment, laser scattering particle size analysis and transmission electron microscopy (TEM). The minimum inhibitory concentration of the fore-aft deaggregation Ag/ZnO nanocomposite antibacterial agent was tested. The results showed that the Ag/ZnO nanocomposite antibacterial agent in isopropanol could be stable suspension more than 6 days after deaggregation with PVPk17, the average particle size was smaller than 51.3 nm. The dispersion effect was the best when the mass % of PVPk17 was 40%. TEM results show that the Ag/ZnO nanocomposite antibacterial agent is kindly dispersed. Then, a model of deaggregation mechanism was built. The MIC of Ag/ZnO nanocomposite antibacterial agent was 50 mg/L after deaggregation, with good antibacterial property

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孟阿蘭,岑 偉,李鎮(zhèn)江,郭 鋒,耿在丹,張振華. Ag/ZnO納米復(fù)合抗菌劑解團(tuán)聚工藝及機(jī)制[J].稀有金屬材料與工程,2009,38(2):358~360.[Meng Alan, Cen Wei, Li Zhenjiang, Guo Feng, Geng Zaidan, Zhang Zhenhua. Deaggregation Technology and Mechanism of Ag/ZnO Nano Composite Antibacterial Agent[J]. Rare Metal Materials and Engineering,2009,38(2):358~360.]
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  • 收稿日期:2008-01-24
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