山羊眼晶状体在不同直流电压下的阻抗。

Impedance of goat eye lens at different DC voltages.

作者信息

Kohli K S, Rai D V, Jindal V K, Goyal N

机构信息

Department of Biophysics, Panjab University, Chandigarh, India.

出版信息

Med Biol Eng Comput. 1998 Sep;36(5):604-7. doi: 10.1007/BF02524431.

DOI:10.1007/BF02524431

PMID:10367445

Abstract

A computer assisted AC impedance system is used to measure the DC voltage-current (V-I) characteristics and AC impedance of a goat eye lens using a two-probe Ag-AgCl electrode system. The measurement of the V-I characteristics shows that when a DC voltage from 0 mV to 30 mV is applied, the resultant current decreases from an initial value of 0.58 microA to 0.006 microA. However, when the voltage is increases beyond 30 mV, the current increases and reaches a value of 0.9 microA at 100 mV. The data on the frequency response (0.01-10 Hz) of the impedance of lens tissue show an inverse relationship with frequency. The effect of various DC voltages, namely 0, 30, 50, 100 and 200 mV, on the impedance of the eye lens is also investigated over a frequency range of 0.01-10 Hz. The measurement results for both V-I characteristics and AC impedance further suggest the presence of a 30 mV voltage compartment in the goat eye lens.

摘要

使用计算机辅助交流阻抗系统，通过双探针银 - 氯化银电极系统测量山羊眼晶状体的直流电压 - 电流（V - I）特性和交流阻抗。V - I特性的测量表明，当施加0 mV至30 mV的直流电压时，产生的电流从初始值0.58微安降至0.006微安。然而，当电压增加超过30 mV时，电流增加，在100 mV时达到0.9微安的值。晶状体组织阻抗的频率响应（0.01 - 10 Hz）数据显示与频率呈反比关系。还在0.01 - 10 Hz的频率范围内研究了各种直流电压（即0、30、50、100和200 mV）对眼晶状体阻抗的影响。V - I特性和交流阻抗的测量结果进一步表明山羊眼晶状体中存在30 mV的电压区间。