干旱区生态环境知识资源中心(Arid): Fabrication and characterization of an eco-friendly antibacterial nanocomposite of galactomannan/ZnO by in situ chemical co-precipitation method

Arid

DOI	10.1080/09276440.2018.1472457
	Fabrication and characterization of an eco-friendly antibacterial nanocomposite of galactomannan/ZnO by in situ chemical co-precipitation method
	Bouttier-Figueroa, D. C.; Sotelo-Lerma, M.
通讯作者	Sotelo-Lerma, M.
来源期刊	COMPOSITE INTERFACES
ISSN	0927-6440
EISSN	1568-5543
出版年	2019
卷号	26 期号:2 页码:83-95
英文摘要	The present study concerns the methodology for the successful synthesis of galactomannan/ZnO (GM/ZnO) nanocomposite using an in situ chemical co-precipitation route utilizing galactomannan as a nanoreactor. The galactomannan was isolated using a hydrothermal extraction from mezquite (Prosopis spp.) seeds, in which the tree represents a valuable resource for the habitants of arid and semiarid zones of Mexico. The GM/ZnO was synthesized at room temperature. The effects of changing the galactomannan concentration in the nanocomposite over the antibacterial activity against Escherichia coli and Staphylococcus aureus were investigated by microdilution broth method. The GM/ZnO with greatest antibacterial activity was the one with the lowest amount of galactomannan and it was characterized. The ZnO nanoparticles that were observed by SEM and TEM, showed the formation of ZnO nanoparticles, with flake/petal shape and wurtzite structure. The synthesis of nanocomposite was confirmed by FTIR, with strong interactions between the primary alcohol of the galactomannan and ZnO. The thermal stability and decomposition was determined by TGA and DSC, finding a greater thermal stability and an increase of the degradation temperature. A mechanism for the synthesis of GM/ZnO, as well as the formation model of the ZnO with the assistance of the galactomannan are proposed. [GRAPHICS] .
英文关键词	Galactomannan zinc oxide antibacterial nanocomposite polysaccharide
类型	Article
语种	英语
国家	Mexico
收录类别	SCI-E
WOS记录号	WOS:000450564500001
WOS关键词	NANOPARTICLES ; ZNO ; IR
WOS类目	Materials Science, Composites
WOS研究方向	Materials Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214953
作者单位	Univ Sonora, Dept Invest Polimeros & Mat, Hermosillo, Sonora, Mexico
推荐引用方式 GB/T 7714	Bouttier-Figueroa, D. C.,Sotelo-Lerma, M.. Fabrication and characterization of an eco-friendly antibacterial nanocomposite of galactomannan/ZnO by in situ chemical co-precipitation method[J],2019,26(2):83-95.
APA	Bouttier-Figueroa, D. C.,&Sotelo-Lerma, M..(2019).Fabrication and characterization of an eco-friendly antibacterial nanocomposite of galactomannan/ZnO by in situ chemical co-precipitation method.COMPOSITE INTERFACES,26(2),83-95.
MLA	Bouttier-Figueroa, D. C.,et al."Fabrication and characterization of an eco-friendly antibacterial nanocomposite of galactomannan/ZnO by in situ chemical co-precipitation method".COMPOSITE INTERFACES 26.2(2019):83-95.