Film formation of ω-aminoalkylcellulose carbamates - A quartz crystal microbalance (QCM) study
Film formation of ω-aminoalkylcellulose carbamates - A quartz crystal microbalance (QCM) study
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DOI：
10.1016/j.carbpol.2014.04.101
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发表时间：
2015-02-13
影响因子：
11.2
通讯作者：
Heinze, Thomas
中科院分区：
文献类型：
--
作者：
Elschner, Thomas;Doliska, Ales;Heinze, Thomas
利用石英晶体微天平和原子力显微镜研究了新型ω-氨基烷基纤维素氨基甲酸酯在金表面的成膜过程。考察了缓冲溶液的pH值、聚合物的浓度、聚合度和聚合物的结构（间隔基长度）对涂层的影响。基于通过电位滴定法测定的ω-氨基烷基纤维素氨基甲酸酯的pK（a）值和取代度来解释层形成。本工作为生物分子的固定化提供了新的载体材料。(C)2014爱思唯尔有限公司版权所有。
The film formation of novel omega-aminoalkylcellulose carbamates on gold surface was studied by means of quartz crystal microbalance with dissipation monitoring (QCM-D) and atomic force microscopy (AFM). The influence of the pH value of the buffer solution, the concentration, the degree of polymerization, and the structure (spacer length) of the polymers on the coating was investigated. The layer formation was explained based on the pK(a) value and the degree of substitution of the omega-aminoalkylcellulose carbamates determined by potentiometric titration. This work provides novel supporting materials that might be applied in field of immobilization of biomolecules. (C) 2014 Elsevier Ltd. All rights reserved.