Carbon nano-onion composites: physicochemical characteristics and biological activity
PBN-AR
Instytucja
Wydział Biologiczno-Chemiczny (Uniwersytet w Białymstoku)
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
Fullerenes, Nanotubes and Carbon Nanostructures
ISSN
1536-4046
EISSN
Wydawca
Francis & Taylor
DOI
URL
Rok publikacji
2017
Numer zeszytu
3
Strony od-do
185-192
Numer tomu
25
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
1,22
Streszczenia
Język
angielski
Treść
Carbon nano-onion/surfactant (CNO/surfactant) composites offer the possibility to easily produce the soluble nanostructures. That approach combines the hydrophilicity of surfactants with the robustness of carbon structures to produce composites with superior and unusual physicochemical properties. We used the following surfactants: hexadecyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), sodium dodecyl benzene sulfonate (SDBS), 4-(1,1,3,3-tetramethylbutyl)phenyl-polyethylene glycol (Triton X-100), and polyethylene glycol sorbitan monolaurate (Tween 20) to non-covalently modify CNO surfaces. The existence of stable CNO composites are clearly evidenced by direct transmission electron microscopy observations, which are also supported by thermogravimetric analyses. Dynamic light scattering and zeta potential confirmed their dispersion and stability. Additionally, the biological activity of well-dispersed CNO/surfactant composites against a strain of Escherichia coli was assayed. In vitro antimicrobial assays for the composites revealed that only the CNO/CTAB composite decreased cell viability. This activity could be assigned to the simple composite dissociation in water solutions, however antimicrobial properties of the composite are slightly better when compared with pure CTAB. This indicate some synergic effect with respect to the properties of the pure surfactant.
Cechy publikacji
publikacja naukowa oryginalna
Inne
System-identifier
PX-59ad1c13d5de838031d4c90d
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