APPARATUS FOR MEASUREMENT OF VERY SMALL MEMBRANE RELAXATION CURRENTS

被引：4

作者：

SARGENT, DF ^{[1
]}

机构：

[1] ETH HONGGERBERG, INST MOLEK BIOL & BIOPHYS, CH-8049 ZURICH, SWITZERLAND

来源：

ANALYTICAL BIOCHEMISTRY | 1976年 / 70卷 / 01期

关键词：

D O I：

10.1016/S0003-2697(76)80052-8

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

An instrument for the measurement of small relaxation currents in lipid bilayers is presented, and a method whereby the initial charging peak can be compensated is discussed. By using the techniques described relaxation phenomena of time constant, .tau., down to 1 .mu.s and amplitude greater than 3 .cntdot. 10-14 amp.cntdot.s/.tau. can be resolved. Such measurements are useful elucidating carrier transport kinetics, in studying physical properties of membranes (viscosity, compressibility) and in determining the effect of external conditions on such properties.

引用

页码：100 / 109

页数：10

共 6 条

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[5] RATE CONSTANTS OF VALINOMYCIN-MEDIATED ION TRANSPORT THROUGH THIN LIPID MEMBRANES [J].

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