Surface functionalization of multi-walled carbon nanotubes (MWCNTs), with amino groups via chemical modification of carboxyl groups introduced on the nanotube surface, using O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (N-HATU) and N,N-diisopropylethylamine (DIEA) is reported. The N-HATU coupling agent provides faster reaction rate and the reaction occurs at lower temperature compared to amidation and acylation-amidation chemistry. The amines, 1,6-hexanediamine (HDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and 1,4-phenylenediamine (PDA) were used. The resulting materials were characterized with different techniques such as FTIR, XRD, elemental analysis, TGA, TEM, UV-vis spectroscopy and cyclic voltammetry. MWCNTs functionalized with PDA posses the best dispersibility and electron transfer properties in comparison to the others amines. Functionalized MWCNTs, at the concentrations between 1 and 50 μg ml-1, were not cytotoxic for the fibrobla...st L929 cell line. However, the concentrations of MWCNTs higher of 10 μg ml-1 reduced cell growth and this effect correlated positively with the degree of their uptake by L929 cells.
TY - JOUR
AU - Vuković, G.
AU - Marinković, Aleksandar D.
AU - Obradović, Maja
AU - Radmilović, V.
AU - Čolić, M.
AU - Aleksić, Radoslav
AU - Uskoković, Petar S.
PY - 2009
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/584
AB - Surface functionalization of multi-walled carbon nanotubes (MWCNTs), with amino groups via chemical modification of carboxyl groups introduced on the nanotube surface, using O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (N-HATU) and N,N-diisopropylethylamine (DIEA) is reported. The N-HATU coupling agent provides faster reaction rate and the reaction occurs at lower temperature compared to amidation and acylation-amidation chemistry. The amines, 1,6-hexanediamine (HDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and 1,4-phenylenediamine (PDA) were used. The resulting materials were characterized with different techniques such as FTIR, XRD, elemental analysis, TGA, TEM, UV-vis spectroscopy and cyclic voltammetry. MWCNTs functionalized with PDA posses the best dispersibility and electron transfer properties in comparison to the others amines. Functionalized MWCNTs, at the concentrations between 1 and 50 μg ml-1, were not cytotoxic for the fibroblast L929 cell line. However, the concentrations of MWCNTs higher of 10 μg ml-1 reduced cell growth and this effect correlated positively with the degree of their uptake by L929 cells.
PB - Elsevier
T2 - Applied Surface Science
T1 - Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes
VL - 255
IS - 18
SP - 8067
EP - 8075
DO - 10.1016/j.apsusc.2009.05.016
ER -
@article{
author = "Vuković, G. and Marinković, Aleksandar D. and Obradović, Maja and Radmilović, V. and Čolić, M. and Aleksić, Radoslav and Uskoković, Petar S.",
year = "2009",
abstract = "Surface functionalization of multi-walled carbon nanotubes (MWCNTs), with amino groups via chemical modification of carboxyl groups introduced on the nanotube surface, using O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (N-HATU) and N,N-diisopropylethylamine (DIEA) is reported. The N-HATU coupling agent provides faster reaction rate and the reaction occurs at lower temperature compared to amidation and acylation-amidation chemistry. The amines, 1,6-hexanediamine (HDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and 1,4-phenylenediamine (PDA) were used. The resulting materials were characterized with different techniques such as FTIR, XRD, elemental analysis, TGA, TEM, UV-vis spectroscopy and cyclic voltammetry. MWCNTs functionalized with PDA posses the best dispersibility and electron transfer properties in comparison to the others amines. Functionalized MWCNTs, at the concentrations between 1 and 50 μg ml-1, were not cytotoxic for the fibroblast L929 cell line. However, the concentrations of MWCNTs higher of 10 μg ml-1 reduced cell growth and this effect correlated positively with the degree of their uptake by L929 cells.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes",
volume = "255",
number = "18",
pages = "8067-8075",
doi = "10.1016/j.apsusc.2009.05.016"
}
Vuković, G., Marinković, A. D., Obradović, M., Radmilović, V., Čolić, M., Aleksić, R.,& Uskoković, P. S.. (2009). Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes. in Applied Surface Science
Elsevier., 255(18), 8067-8075.
https://doi.org/10.1016/j.apsusc.2009.05.016
Vuković G, Marinković AD, Obradović M, Radmilović V, Čolić M, Aleksić R, Uskoković PS. Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes. in Applied Surface Science. 2009;255(18):8067-8075.
doi:10.1016/j.apsusc.2009.05.016 .
Vuković, G., Marinković, Aleksandar D., Obradović, Maja, Radmilović, V., Čolić, M., Aleksić, Radoslav, Uskoković, Petar S., "Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes" in Applied Surface Science, 255, no. 18 (2009):8067-8075,
https://doi.org/10.1016/j.apsusc.2009.05.016 . .
