Determination of force-free wet adhesion of mussel-inspired polymers to spin labeled surface

被引：5
|
作者：
Kirpat, Iklima [1 ]
Goksel, Yaman [1 ,2 ]
Karakus, Erman [2 ]
Emrullahoglu, Mustafa
Akdogan, Yasar [1 ]
机构：
[1] Izmir Inst Technol, Mat Sci & Engn Dept, TR-35430 Izmir, Turkey
[2] Izmir Inst Technol, Dept Chem, TR-35430 Izmir, Turkey
来源：
MATERIALS LETTERS | 2017年 / 205卷
关键词：
Adhesion; Biomimetic; EPR spectroscopy; Hydration layers; DOPA; PROTEINS; BINDING; EPR;
D O I：
10.1016/j.matlet.2017.06.060
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hydration repulsive forces oppose the adhesive interactions, especially in the force-free conditions. Here, we studied spontaneous wet adhesion of 3,4-dihydroxyphenylalanine (DOPA) functionalized poly(ethylene glycol) (PEG) polymers inspired by marine mussels. Using electron paramagnetic resonance (EPR) spectroscopy, we can monitor spontaneous adhesion of DOPA containing polymer to suspended spin labeled hydrophobic polystyrene nanobeads at molecular level. The surface coverage up to 82% is obtained from EPR measurements. However, in the force-free condition, EPR measurements do not show any detectable DOPA based adhesion to hydrophilic silica nanobead. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：48 / 51
页数：4
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