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Information × Registration Number 0211U002955, 0109U006247 , R & D reports Title Studies and control fulleren C60 nanoclasters in polar solvents for biomedical application popup.stage_title Head Pokrovskiy V.O., Registration Date 11-03-2011 Organization Institute of Surface Chemistry of the National Academy of Sciences of Ukraine popup.description2 During implementation of scientific works the features of fullerene C60 ions formation in the polar sovlents were studied. The character of C60 aggregates stabilization was defined based on the dependence of dimers formation for solvents with different polarity. Under mass spectrometric investigation was defined that process of fullerene oxidation prevents to clusters formation of analyte in polar solvent. Also was shown that creation of analyte thin films on steel targets leads to disappearance of fullerene dimer peaks in N-methyl pyrrolidone and is a limitation stage for ion-molecular reactions in gas phase. Clear signal dependence on C60 aggregation and on solvents indicates that there is relation between solution properties (solvent polarity) and properties of cristal-amorphous system C60/solvent under mass spectrometric experiment. Therefore use of matrix-free laser desorption/ionization approach for fullerene containing system is possible. Thus, the mass spectrometric technique for fullerene investigation in solvents with different dielectric permeability was developed. Also was shown that LDI method can be effectively used for the control of extraction C60 process by hexane. It should note that quantity of clusters groups in mass spectrum is in strong dependence on film thickness and fullerene concentration. Such observation opens possibilities of semiquantitative investigation of fullerene containing systems in different polarity solvents with different analyte concentration. Product Description popup.authors Орел І.Л. Покровський В.О. popup.nrat_date 2020-04-02 Close