Open AccessFunctionalization, characterization, and antibacterial activity of single wall and multi wall carbon nanotubes
Author(s) -
Mustafa K. A. Mohammed,
M. R. Mohammad,
Majed S. Jabir,
Duha S. Ahmed
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/757/1/012028
Subject(s) - carbon nanotube , scanning electron microscope , sulfuric acid , antibacterial activity , fluorescence , materials science , fluorescence microscope , nuclear chemistry , surface modification , nitric acid , escherichia coli , chemical engineering , bacteria , nanotechnology , chemistry , composite material , biochemistry , optics , physics , engineering , biology , metallurgy , genetics , gene
The raw-SWNTs and raw-MWNTs were chemically oxidized with a mixture of sulfuric acid and nitric acid under ultrasonic vibration. The functionalized-SWNTs (F-SWNTs) and functionalized-MWNTs (F-MWNTs) were characterized by using ultra violet-visible spectrophotometer, X-ray diffraction, and field emission scanning electron microscopy (FESEM). The antibacterial efficiency of SWNTs and MWNTs towards Escherichia coli (E. coli) as gram-negative bacteria was evaluated via viable count method and fluorescence microscopy. The results of viable count method showed that the SWNTs and MWNTs have higher inhibitory effect after being treated with H 2 SO 4 /HNO 3 .The E. coli images under fluorescence microscopy exhibited that almost red color for dead cells, which confirms the efficient lethal ability of F-SWNTs and F-MWNTs.