赤血球の沈降速度への磁場配向および電場配向の影響

概要

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To clarify the effects of the magnetic and electric orientations of human red blood cells (RBCs) on blood rheology, the behaviors and sedimentation rates of RBCs in an 8-T magnetic field and 1-5 kV/m ac electric fields (l-200 kHz, sine wave) were investigated. When a mutually perpendicular horizontal 8-T magnetic field and larger than 2 kV/m ac electric field (higher than 100 kHz) were applied to RBCs suspended in a phosphate buffer solution, it was observed that all RBCs were oriented in the same direction so that their disk planes were parallel to both the electric and the magnetic fields. The sedimentation rate of RBCs was obtained by measuring their falling velocities, using recorded microscopic images. When the concentration of RBCs (hematocrit value) was 0.1-l%, the sedimentation rate was decreased by applying a mutually perpendicular horizontal 8-T magnetic field and 4 kV/m ac electric field. The change in the sedimentation rate reached 23% when the concentration of RBCs was 0.5%.
社団法人日本磁気学会の論文
1999-04-01