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Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes
dc.creator | Vuković, G. | |
dc.creator | Marinković, Aleksandar D. | |
dc.creator | Obradović, Maja | |
dc.creator | Radmilović, V. | |
dc.creator | Čolić, M. | |
dc.creator | Aleksić, Radoslav | |
dc.creator | Uskoković, Petar S. | |
dc.date.accessioned | 2019-01-30T17:21:19Z | |
dc.date.available | 2019-01-30T17:21:19Z | |
dc.date.issued | 2009 | |
dc.identifier.issn | 0169-4332 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/584 | |
dc.description.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. | en |
dc.publisher | Elsevier | |
dc.relation | info:eu-repo/grantAgreement/MESTD/MPN2006-2010/142006/RS// | |
dc.rights | restrictedAccess | |
dc.source | Applied Surface Science | |
dc.subject | Amino-functionalization | en |
dc.subject | Carbon nanotubes | en |
dc.subject | Cyclic voltammetry | en |
dc.subject | cytotoxicity | en |
dc.title | Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes | en |
dc.type | article | |
dc.rights.license | ARR | |
dcterms.abstract | Вуковић, Г.; Чолић, М.; Обрадовић, Маја; Маринковић, A.; Радмиловић, В.; Ускоковић, Петар С.; Aлексић, Радослав Р.; | |
dc.citation.volume | 255 | |
dc.citation.issue | 18 | |
dc.citation.spage | 8067 | |
dc.citation.epage | 8075 | |
dc.citation.other | 255(18): 8067-8075 | |
dc.citation.rank | M22 | |
dc.identifier.doi | 10.1016/j.apsusc.2009.05.016 | |
dc.identifier.scopus | 2-s2.0-67649097074 | |
dc.identifier.wos | 000267469500039 | |
dc.type.version | publishedVersion |