静电纺Ag@MOF-5/β-CD抗菌纤维膜的制备及性能

doi:10.11896/cldb.18100098

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Abstract The metal-organic frameworks materials MOF-5 and silver-loaded MOF-5 (Ag@MOF-5) were prepared by hydrothermal method. Electrostatic spinning beta-Cyclodextrin(β-CD),MOF-5/β-CD,Ag@MOF-5/β-CD fiber membranes with three dimensional crosslinking network structure were prepared by electrostatic spinning and in situ thermal crosslinking methods. The morphology, structure characterization and properties of electrostatic spun fiber membranes were tested by scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM&EDS), thermal weightlessness (TG), universal material testing machine and bacteriostatic method. The results show that Ag@MOF-5 nanocrystals are uniformly loaded with a large number of globular silver nanoparticles which is about 3—5 nm in diameter. The diameter of electrostatic spinning β-CD fiber is about 500 nm which is uniformly distributed and has smooth surface. When MOF-5 and Ag@MOF-5 were added into the spinning solution, the diameter of the fibers is not evenly distributed, and a large number of filaments appeared. Most of Ag@MOF-5 is a fibrous arrangement and wrapped by the fiber forming material. The heat resistance temperature of fiber membrane is 250 ℃. Ag@MOF-5 does not affect the crosslinking process, water absorption properties of thermal decomposition temperature of β-CD fiber membrane. The addition amount of Ag@MOF-5 can be up to 1wt%, and the mechanical properties of electrostatic spinning Ag@MOF-5/β-CD fiber membrane is not reduced. Electrostatic spinning MOF-5/β-CD has limited antibacterial properties against both bacteria, while 0.5wt% Ag@MOF-5/β-CD has achieved good 24 h antibacterial effect.

Key words： metal-organic frameworks silver nanoparticles electrostatic spinning beta-cyclodextrin (β-CD) antibacterial materials

Published: 16 September 2019

CLC number:

O646

Fund:This work was financially supported by the National Natural Science Foundation of China (11802197,115020158, 11632013).

About author:: Yinchun Hureceived her Ph.D. degree in materials from China University of Petroleum (Beijing) (CUPB) in 2013. She is currently an associate professor in Taiyuan University of Technology (TYUT) and participates in the researches of biomedical materials. Her research interests are preparation of electrostatic spinning fiber membranes and polymer hydrogel.

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	HU Yinchun
	CHENG Yizhu
	WANG Renhu
	YIN Meng
	WEI Yan
	DU Jingjing
	HUANG Di
	CHEN Weiyi

Cite this article:

HU Yinchun,CHENG Yizhu,WANG Renhu, et al. Fabrication and Properties of Electrostatic Spinning Ag@MOF-5/β-CD Antibacterial Fiber Membrane[J]. Materials Reports, 2019, 33(22): 3825-3828.

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http://www.mater-rep.com/EN/10.11896/cldb.18100098 OR http://www.mater-rep.com/EN/Y2019/V33/I22/3825

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