A composed material in the form of polymer matrix (polyvinyl alcohol) with imbedded nanoparticles of polyhydroxylated fullerene (fullerenol) was studied by optical methods. The host material was selected as a convenient media with such properties as flexibility, optical transparency and water solubility, which was utilized for films fabrication. The samples obtained were investigated by visible and infrared spectroscopy, and also the light scattering was examined at different wavelengths. It was shown that at high concentration of filler it forms clusters with sizes of about tens of nanometers, which is consistent with the data of other works.
В статье приводятся результаты измерений импульсных параметров (проводимости, сопротивления потерь, диэлектрической проницаемости и др.) проводящих жидкостей (дистиллированной воды, буферного раствора TrisH 2 SO 4 pH 7.5 и физиологического раствора 0.154 M NaCl) при действии быстрозатухающего почти гармонического сигнала (всплеск, или wavelet) длительности 5-10 мкс и амплитуды (без нагрузки) до 30 кВ. Показано, что высокая электропроводность для буферного и физиологического растворов сильно уменьшает амплитуду импульса, но приводит к уменьшению тепловыделения, что позволяет исключать термические эффекты при изучении импульсного электрического воздействия на биологические системы.
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