Journal
ULTRASONICS SONOCHEMISTRY
Volume 19, Issue 4, Pages 846-852Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2011.11.016
Keywords
Metal-Organic Framework (MOF); Silk fiber; Nanoparticle; CuBTC; Ultrasound irradiation; Antibacterial properties
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Funding
- Tarbiat Modares University
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The growth of Cu-3(BTC)(2) (BTC = 1,3,5-benzenetricarboxylate), also known as CuBTC and HKUST-1, Metal-Organic Framework (MOF) nanostructures on silk fibers were achieved by layer-by-layer technique in alternating bath of Cu(OAc)(2)center dot 2H(2)O and H3BTC solutions under ultrasound irradiation. The effect of pH, reaction time, ultrasound irradiation and sequential dipping steps in growth of the CuBTC Metal-Organic Framework nanostructures has been studied. These systems depicted a decrease in the size accompanying a decrease in the sequential dipping steps. In addition, dense coating of silk fibers with CuBTC MOF results in decrease the emission intensity of silk fibers. The silk fibers containing CuBTC Metal-Organic Framework exhibited high antibacterial activity against Escherichia coli and Staphylococcus aureus. The samples were characterized with powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) spectra and scanning electron microscopy (SEM). XRD analyses indicated that the prepared CuBTC MOF nanostructures on silk fibers were crystalline. (C) 2011 Elsevier B.V. All rights reserved.
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