Evolution of concentration field in a membrane system

被引：22

作者：

Dworecki, K

Slezak, A

Ornal-Wasik, B

Wasik, S ^{[1
]}

机构：

[1] Jan Kochanowski Univ Humanities & Sci, Inst Phys, PL-25406 Kielce, Poland

[2] Czestochowa Tech Univ, Dept Biol & Biophys, PL-42200 Czestochowa, Poland

来源：

JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS | 2005年 / 62卷 / 02期

关键词：

diffusion process; concentration boundary layers; evolution of concentration field; laser interferometric technique;

D O I：

10.1016/j.jbbm.2004.10.007

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

This paper deals with the evolution of concentration field at a single membrane system. Concentration field evolution is described by concentration effect of stable boundary layers, which originate in this system. The concentration effect of boundary layers (CBLE) is studied experimentally on the basis concentration profiles obtained from computer analysis of interferometric pictures of near-membrane regions. Besides experimental results, we also report theoretical investigations and numerical calculations of this effect for two models of membranes (an infinite thin wall and the wall of thickness l). Evolution of concentration field at different distances from membrane surface describes accurately the spatio-temporal structure of the concentration boundary layers (CBLs). Results have shown that their spatial structure is fully established and these layers develop diffusively. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：153 / 162

页数：10

共 35 条

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[Anonymous], 1995, DIFFUSION MASS TRANS

[2]

BARRY CA, 1988, J MEMBRANE BIOL, V105, P33

[3] EFFECTS OF UNSTIRRED LAYERS ON MEMBRANE PHENOMENA [J].