Long-Term Effect of Low-Frequency Electromagnetic Irradiation in Water and Isotonic Aqueous Solutions as Studied by Photoluminescence from Polymer Membrane

Polymers

PolinaN. Bolotskova¹  ValeriyA. Kozlov¹  MariaA. Okuneva¹  NikolaiF. Bunkin¹  SergeyV. Gudkov²  ElenaV. Bondarchuk³  ValeryG. Gryaznov³  OlegP. Smoliy³  OlegV. Ovchinnikov³  IgorF. Turkanov³ 

[1] Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia;Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia;“Concern GRANIT”, Gogolevsky Blvd., 31, Bldg. 2, 119019 Moscow, Russia;

关键词: swelling of polymers;    photoluminescence spectroscopy;    low-frequency electromagnetic treatment;    isotonic solution;    long-term effects of electromagnetic treatment;    cell membrane;   

DOI  :  10.3390/polym13091443

来源: DOAJ

【 摘 要 】

The swelling of a polymer membrane Nafion^TM in deionized water and isotonic NaCl and Ringer’s solutions was studied by photoluminescent spectroscopy. According to our previous studies, the surface of this membrane could be considered as a model for a cellular surface. Liquid samples, in which the membrane was soaked, were subjected to preliminary electromagnetic treatment, which consisted of irradiating these samples with electric rectangular pulses of 1 µs duration using platinum electrodes immersed in the liquid. We used a series of pulses with a repetition rate of 11–125 Hz; the pulse amplitudes were equal to 100 and 500 mV. It turned out that at certain pulse repetition rates and their amplitudes, the characteristic swelling time of the polymer membrane significantly differs from the swelling time in untreated (reference) samples. At the same time, there is no effect for certain frequencies/pulse amplitudes. The time interval between electromagnetic treatment and measurements was about 20 min. Thus, in our experiments the effects associated with the long-term relaxation of liquids on the electromagnetic processing are manifested. The effect of long-term relaxation could be associated with a slight change in the geometric characteristics of bubston clusters during electromagnetic treatment.

【 授权许可】

Unknown