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Information × Registration Number 0211U002954, 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 extraction process from С60/NMP and С60/NMP/water by hexane were investigated. Extraction process was controlled by UV-spectroscopy method. In our work was shown that extraction depends on aggregates formation. Was found that fullerene is extracted in hexane phase as monomer. It strongly evidences that the disaggregation in the system C60/NMP/water is a result of detachment of individual fullerene molecules from large aggregates, which initiates the extraction. Its reasonable explanation is that fullerene molecules form donor-acceptor complexes with NMP, which are soluble in the mixture NMP/water. Such complexes are stable in water. It should be mentioned that the formation of donor-acceptor complexes was previously assumed to be responsible for the temporal solvatochromism in C60/NMP (change in the solution color from mauve to brownish yellow), namely the interaction of C60 with NMP changes in time, thus resulting in variation of UV-Vis spectra. Product Description popup.authors Орел І.Л. Покровський В.О. popup.nrat_date 2020-04-02 Close