Bacteria capture and inactivation with multi-walled carbon nanotubes (MWCNTs) was investigated in this study. Raw MWCNTs (r-MWCNTs) was oxidized in mixed acid, yielding functionalized MWCNTs (f-MWCNTs) with carboxyl and hydroxyl group. UV-Vis absorption spectra and transmission electron
microscope (TEM) shown that surface modifications led to elevated dispersity and stability of f-MWCNTs. The antimicrobial activities of f-MWCNTs to bacterial pathogen Vibrio parahaemolyticus were further explored. Both the colony forming count method and OD growth assay demonstrated
that individually dispersed f-MWCNTs showed a higher antibacterial activity compared to r-MWCNT aggregates, suggesting that dispersity of MWCNTs play an important role to antibacterial effect of CNTs. In addition, viability of bacterial cells treated with f-MWCNTs was found to be incubation
time-dependent, however no correlation between incubation shaking speed and antibacterial activity of f-MWCNTs was observed. SEM and TEM prove that f-MWCNTs mostly wound around surfaces of V. parahaemolyticus cells instead of piecing into the bacterial cells. This is a convincing proof
of physical sorption other than physical punctures, contributing to the possible antimicrobial mechanism of f-MWCNTs to bacterial cells.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
School of Food Science & Engineering, South China University of Technology, Guangzhou 510640, Guangdong, PR China
Publication date: April 1, 2020
More about this publication?
Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites