Oxygen permeability of surface-modified poly(dimethylsiloxane) characterized by scanning electrochemical microscopy

被引：92
|
作者：
Shiku, H
Saito, T
Wu, CC
Yasukawa, T
Yokoo, M
Abe, H
Matsue, T
Yamada, H
机构：
[1] Tohoku Univ, Grad Sch Environm Studies, Sendai, Miyagi 9808579, Japan
[2] Tohoku Univ, Biomed Engn Res Org, Sendai, Miyagi 9808579, Japan
[3] Natl Def Acad, Dept Appl Chem, Kanagawa 2398686, Japan
来源：
CHEMISTRY LETTERS | 2006年 / 35卷 / 02期
关键词：
D O I：
10.1246/cl.2006.234
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Scanning electrochemical microscopy (SECM) was employed to quantitatively characterize the oxygen permeation behaviors of poly(dimethylsiloxane) (PDMS) and surface-modified PDMS. The mass-transfer process of oxygen from the PDMS substrate to the tip electrode is diffusion limited, whereas the oxygen permeability of PDMS subjected to oxygen plasma treatment or albumin adsorption is critically restricted. Our results suggest that the oxygen permeability of PDMS is possibly affected by O-2 plasma irradiation and albumin adsorption at the PDMS surfaces.
引用
收藏
页码：234 / 235
页数：2
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