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Synthesis and characterization of antibacterial compounds using montmorillonite and chlorhexidine acetate

文献类型:期刊论文

作者Yang, D.; Yuan, P.; Zhu, J. X.; He, H.-P.
刊名Journal of thermal analysis and calorimetry
出版日期2007-09-01
卷号89期号:3页码:847-852
关键词Antibacterial materials Chlorhexidine acetate High-resolution thermogravimetric analysis Interlayer structure Montmorillonite
ISSN号1388-6150
DOI10.1007/s10973-006-8318-3
通讯作者He, h.-p.(hehp@gig.ac.cn)
英文摘要Two series of antibacterial compounds were synthesized using montmorillonite and chlorhexidine acetate (ca) by ion-exchange reaction. the resulting samples were characterized by high-resolution thermogravimetric analysis (hrtg), fourier transform infrared (ftir) spectroscopy, x-ray diffraction (xrd) and their antibacterial activity was assayed by halo method. in this study, the loaded amounts of ca in the resultant compounds were evaluated by the hrtg curves. ca adopts a lateral monolayer arrangement in the resulting samples with low ca loading, while a special state with partial overlapping of organic molecules is supposed for the resulting samples prepared at 1.0-4.0 cec. after the intercalation with ca, the hydrophilic surfaces of montmorillonite are changed to hydrophobic ones, reflected by the frequency shift of the symmetric v(1(o-h)) stretching vibration from low to high. this study shows that the interlayer cations in raw montmorillonite have little influence on the structure of the resulting samples. antibacterial activity test against e. coli demonstrates that the antibacterial activity of the resulting samples strongly depends on the content of the loaded ca and these resulting materials show a long-term antibacterial activity that can last for at least one year.
WOS关键词CU(II)-EXCHANGED MONTMORILLONITE ; EXCHANGED MONTMORILLONITE ; CLAY-MINERALS ; ADSORPTION ; INTERLAYER ; MECHANISM ; CATIONS
WOS研究方向Chemistry
WOS类目Chemistry, Analytical ; Chemistry, Physical
语种英语
WOS记录号WOS:000249206300028
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2383829
专题中国科学院大学
通讯作者He, H.-P.
作者单位1.Chinese Acad Sci, Inst Geochem, Guangzhou 510640, Peoples R China
2.Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Yang, D.,Yuan, P.,Zhu, J. X.,et al. Synthesis and characterization of antibacterial compounds using montmorillonite and chlorhexidine acetate[J]. Journal of thermal analysis and calorimetry,2007,89(3):847-852.
APA Yang, D.,Yuan, P.,Zhu, J. X.,&He, H.-P..(2007).Synthesis and characterization of antibacterial compounds using montmorillonite and chlorhexidine acetate.Journal of thermal analysis and calorimetry,89(3),847-852.
MLA Yang, D.,et al."Synthesis and characterization of antibacterial compounds using montmorillonite and chlorhexidine acetate".Journal of thermal analysis and calorimetry 89.3(2007):847-852.

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来源:中国科学院大学

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