- Investigation of Synthesis and Antibacterial Properties of a Magnetically Reusable Fe3O4-ACCS-Ag Nanocomposite
- Shim, Jaehong;Kim, Hea-Won;Kim, Jin-Won;Seo, Young-Seok;Oh, Sae-Gang;Cho, Min;Park, Junghee;Oh, Byung-Taek;
- School of Natural Resources, University of Nebraska-Lincoln;Division of Biotechnology, Collage of Environmental and Bioresource Science, Chonbuk National University;Division of Biotechnology, Collage of Environmental and Bioresource Science, Chonbuk National University;Division of Biotechnology, Collage of Environmental and Bioresource Science, Chonbuk National University;Mine Reclamation Corp.;Division of Biotechnology, Collage of Environmental and Bioresource Science, Chonbuk National University;Division of Biotechnology, Collage of Environmental and Bioresource Science, Chonbuk National University;Division of Biotechnology, Collage of Environmental and Bioresource Science, Chonbuk National University;
- 재사용이 가능한 나노복합재료 Fe3O4-ACCS-Ag의 제조 및 항균 특성 평가
- 심재홍;김해원;김진원;서영석;오세강;조민;박정희;오병택;
- 네브라스카 주립대학 천연자원학부;전북대학교 생명공학부;전북대학교 생명공학부;전북대학교 생명공학부;한국광해관리공단;전북대학교 생명공학부;전북대학교 생명공학부;전북대학교 생명공학부;
Abstract
In this study, Fe3O4-ACCS-Ag nanoparticles (NPs) were successfully synthesized using silica extracted from corn cob ash. The synthesized Fe3O4-ACCS-Ag NPs were characterized using X-ray diffraction (XRD), scanning electron microscopyenergy dispersive X-ray spectroscopy (SEM-EDX), transmission electron microscopy (TEM) and fourier transform infrared spectroscopy (FTIR). In addition, the potential application of Fe3O4-ACCS-Ag NPs as an antibacterial material in water disinfection was investigated using Escherichia coli ATCC 8739 as model bacteria. The antibacterial activity of synthesized composite material showed 99.9% antibacterial effect within 20 min for the tested bacteria. From this experiment, the synthesized Fe3O4-ACCS-Ag nanocomposites also hold magnetic properties and could be easily recovered from the water solution for its reuse. The reused nanocomposites presented the decreasing antibacterial efficiencies with the reuse cycle but the composite used three times still killed 90% of bacteria in 20 min.
Keywords: $Fe_3O_4$-ACCS-Ag nanoparticle;Antibacterial activity;Escherichia coli;Magnetic;
This Article