Poly(butyl cyanoacrylate) nanoparticles stabilised with poloxamer 188: particle size control and cytotoxic effects in cervical carcinoma (HeLa) cells
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Georgi Yordanov
,
Ralica Skrobanska
Abstract
In this study, the preparation of poloxamer 188-coated poly(butyl cyanoacrylate) colloidal nanospheres of controlled size distribution and their physicochemical characterisation were investigated and their cytotoxic effects in cervical carcinoma (HeLa) cells evaluated. The nanoparticles were prepared by controlled emulsion polymerisation of butyl cyanoacrylate in an aqueous medium containing poloxamer 188 as an amphiphilic non-ionic colloidal stabiliser. The colloids thus obtained were characterised by scanning electron microscopy, dynamic and electrophoretic light-scattering, Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy. The average size of the particles could be finely controlled within an interval between 220 nm and 290 nm by varying the concentration of the precursor and citric acid in the polymerisation medium. The particle zeta-potentials in phosphate-buffered saline were approximately -4.5 mV. FTIR and NMR data confirmed the expected composition of nanoparticles and the complete precursor polymerisation. In-vitro studies with cervical carcinoma (HeLa) cells demonstrated the dose-dependent cytotoxicity of nanoparticles (IC50 ≈ 30 μg mL-1). Observations by phase contrast and fluorescence microscopy revealed that at cytotoxic concentrations (40 μg mL-1) nanoparticles induced changes in cell morphology and chromatin fragmentation. The colloidal stabiliser (poloxamer 188) alone was not cytotoxic at the applied concentrations.
References
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Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- Synthesis and properties of new N,N′-phenyltetrazole podand
- Molecular diagnosis of Pompe disease using MALDI TOF/TOF and 1H NMR
- Erythritol biosynthesis from glycerol by Yarrowia lipolytica yeast: effect of osmotic pressure
- Cloning and expression of two genes coding endo-β-1,4-glucanases from Trichoderma asperellum PQ34 in Pichia pastoris
- Adsorption desulphurisation of dimethyl sulphide using nickel-based Y zeolites pretreated by hydrogen reduction
- Equilibrium and kinetics of wetting hydrophobic microporous membrane in sodium dodecyl benzene sulphonate and diethanolamine aqueous solutions
- Separation of urea adducts in the analysis of complex mineral fertilisers
- Cheese whey tangential filtration using tubular mineral membranes
- Characterization of the quality of novel rye-buckwheat ginger cakes by chemical markers and antioxidant capacity
- A new high-temperature inorganic–organic proton conductor: lanthanum sulfophenyl phosphate
- Membranes with a plasma deposited titanium isopropoxide layer
- Effect of fuel content on formation of zinc aluminate nano and micro-particles synthesised by high rate sol–gel autoignition of glycine-nitrates
- Poly(butyl cyanoacrylate) nanoparticles stabilised with poloxamer 188: particle size control and cytotoxic effects in cervical carcinoma (HeLa) cells
- Solubility enhancement of phenanthrene using novel chelating surfactant
- Physicochemical and excess properties of binary mixtures of (1-alkyl-3-methylimidazoliumchloride/bromide + ethylene glycol) at T = (288.15 to 333.15) K
