100Hz^100MHz蛙骨骼肌介电谱的椭圆壳理论解析  

DIELECTRIC SPECTROSCOPY (100Hz^100MHz) OF FROG SKELETAL MUSCLES:A THEORETICAL ANALYSIS WITH AN ELLIPSOIDAL-SHELL MODEL

作　　者：马青[1] 渡边牧夫 洲崎敏伸[3] 

机构地区：[1]宁波大学医学院生理学科,浙江宁波315211 [2]高知医科大学眼科学教室 [3]神户大学理学部生物学科

出　　处：《生物物理学报》2003年第3期309-316,共8页Acta Biophysica Sinica

基　　金：日本国文部省奖学金;日本国际教育交流协会奖学金

摘　　要：在100 Hz ~ 100 MHz频率范围内,应用浓厚系介电椭圆壳理论分析了蛙骨骼肌介电谱,提出了蛙骨骼肌细胞的椭圆壳模型参数。讨论了骨骼肌介电谱的高频段平行方向与垂直方向的电导率不相等的理论问题。明确了决定骨骼肌高频率段(106~108 Hz)介电数据的物质基础主要是骨骼肌细胞内部的肌原纤维,其次是胞浆内的微小颗粒(线粒体、肌质网)。The dielectric spectroscopy of the frog skeletal muscle fibers in the 100 Hz^100 MHz range was analyzed with a dense ellipsoidal-shell model, and the model's parameters were put forward. The difference between parallel conductivity(κ h,‖ )and perpendicular conductivity(κ h,⊥ )at high frequency was discussed. The analytical results clearly indicate that the dielectric data of the frog skeletal muscles at high frequencies(10 6 ~10 8 Hz)come primarily from the myofibrils, and secondarily from cytoplasmic vesicles, i.e. mitochondria and sarcoplasmic reticulum.

关 键 词：蛙 骨骼肌 介电谱 椭圆壳理论 电导率 介电常数 

分 类 号：Q64[生物学—生物物理学]