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dc.creatorVuković, G.
dc.creatorMarinković, Aleksandar D.
dc.creatorObradović, Maja
dc.creatorRadmilović, V.
dc.creatorČolić, M.
dc.creatorAleksić, Radoslav
dc.creatorUskoković, Petar S.
dc.date.accessioned2019-01-30T17:21:19Z
dc.date.available2019-01-30T17:21:19Z
dc.date.issued2009
dc.identifier.issn0169-4332
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/584
dc.description.abstractSurface 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.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142006/RS//
dc.rightsrestrictedAccess
dc.sourceApplied Surface Science
dc.subjectAmino-functionalizationen
dc.subjectCarbon nanotubesen
dc.subjectCyclic voltammetryen
dc.subjectcytotoxicityen
dc.titleSynthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubesen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractВуковић, Г.; Чолић, М.; Обрадовић, Маја; Маринковић, A.; Радмиловић, В.; Ускоковић, Петар С.; Aлексић, Радослав Р.;
dc.citation.volume255
dc.citation.issue18
dc.citation.spage8067
dc.citation.epage8075
dc.citation.other255(18): 8067-8075
dc.citation.rankM22
dc.identifier.doi10.1016/j.apsusc.2009.05.016
dc.identifier.rcubConv_4202
dc.identifier.scopus2-s2.0-67649097074
dc.identifier.wos000267469500039
dc.type.versionpublishedVersion


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