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Development and antibacterial performance of silver nanoparticles-lecithin modified montmorillonite nanoparticle hybrid
Abstract It is advisable to develop novel and more effective biocompatible antimicrobial materials to reduce the threats of bacterial infection. To study this problem, silver nanoparticles (AgNPs) are studied for their excellent performance against bacteria. In this work, montmorillonite (Mt) was modified with lecithin (LEC). Then, silver ion (Ag+) was loaded on the LEC-Mt. Finally, Ag+ was reduced to Ag nanoparticles (AgNPs) by good biocompatible reducing agent ascorbic acid. X-ray diffraction and X-ray photoelectron spectroscopy identified that AgNPs were successfully reduced. Scanning electron microscope and transmission electron microscope proved the presence and formation mechanism of AgNPs. Antimicrobial activity of the AgNPs@ LEC-Mt showed a significant improvement on Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) compared with bare Mt. and LEC modified Mt. The cytotoxicity effects of AgNPs@LEC-Mt were examined in L-929 cells line with a survival rate over 80%.
Highlights Nanoparticle Hybrid were design with Ag NPs loading onto Mt. modified by lecithin. The Ag NPs@LEC-Mt had inhibition zone of 13.2 mm for E.coli and 14 mm for S. aureus. Cell viability reached above 80% at the concentration of antibacterial application.
Development and antibacterial performance of silver nanoparticles-lecithin modified montmorillonite nanoparticle hybrid
Abstract It is advisable to develop novel and more effective biocompatible antimicrobial materials to reduce the threats of bacterial infection. To study this problem, silver nanoparticles (AgNPs) are studied for their excellent performance against bacteria. In this work, montmorillonite (Mt) was modified with lecithin (LEC). Then, silver ion (Ag+) was loaded on the LEC-Mt. Finally, Ag+ was reduced to Ag nanoparticles (AgNPs) by good biocompatible reducing agent ascorbic acid. X-ray diffraction and X-ray photoelectron spectroscopy identified that AgNPs were successfully reduced. Scanning electron microscope and transmission electron microscope proved the presence and formation mechanism of AgNPs. Antimicrobial activity of the AgNPs@ LEC-Mt showed a significant improvement on Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) compared with bare Mt. and LEC modified Mt. The cytotoxicity effects of AgNPs@LEC-Mt were examined in L-929 cells line with a survival rate over 80%.
Highlights Nanoparticle Hybrid were design with Ag NPs loading onto Mt. modified by lecithin. The Ag NPs@LEC-Mt had inhibition zone of 13.2 mm for E.coli and 14 mm for S. aureus. Cell viability reached above 80% at the concentration of antibacterial application.
Development and antibacterial performance of silver nanoparticles-lecithin modified montmorillonite nanoparticle hybrid
Ge, Manqing (author) / Li, Jie (author) / Song, Saijie (author) / Meng, Na (author) / Zhou, Ninglin (author)
Applied Clay Science ; 183
2019-10-15
Article (Journal)
Electronic Resource
English
Sutures modified by silver-loaded montmorillonite with antibacterial properties
| Online Contents | 2014