Informationen zu Lehrveranstaltungen in Opal / Information about lectures can be found in Opal

Skip to content.


search  |  internal  |  deutsch
Personal tools
TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

» presentations   » 2014.04.01

Investigation of the antimicrobial activity of well-dispersed multiwalled carbon nanotubes (MWCNT)

Maryam Khazaee, Dan Ye, Anindya Majumder, Larysa Baraban, Jörg Opitz, Gianaurelio Cuniberti

DPG Frühjahrstagung der Sektion Kondensierte Materie (SKM)

2014.04.01; Dresden, Germany

Antimicrobial activity of well-dispersed MWCNTs with an average diameter of 10 nm was investigated by analyzing the growth curves of Escherichia coli (E.coli) population in surfactant-modified MWCNTs and polymer-modified MWCNTs in Luria Bertani (LB) broth. MWCNTs can be dispersed in ionic surfactants like sodium dodecyl sulfate (SDS), sodium dodecylbenzenesulfonate (SDDBS), sodium cholate (SC), dodecyltrimethylammonium bromide (DTAB) and decyltrimethylammonium bromide (CTAB), as well as in a non-ionic polymer-polyvinylpyrrolidone (PVP). Good dispersion of surface functionalized MWCNTs was observed by UV-Vis spectroscopy and microscopic techniques. Biocompatibility of these surfactants was estimated by analyzing the growth curves of E. coli population in both surfactant-LB broth and polymer-LB broth. SDDBS and PVP, which showed the least toxicity towards the E. coli cells, were selected to study the interaction of well-dispersed MWCNTs by these materials with bacteria. Observation of the deformed E.coli cell membranes using SEM confirms the antimicrobial activity of MWCNTs.

conference announcement (html)

people| research | teaching | links | internal | home

last modified: 2020.12.01 Tue
author: webadmin

Prof. Dr. Gianaurelio Cuniberti
Ms Sylvi Katzarow
phone: +49 (0)351 463-31420
fax: +49 (0)351 463-31422
postal address:
Institute for Materials Science
TU Dresden
01062 Dresden, Germany
visitors and courier address:
HAL building
TU Dresden
Hallwachsstr. 3
01069 Dresden, Germany
Max Bergmann Center
TU Dresden
Budapester Str. 27
01069 Dresden, Germany