...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Studies of Adsorption and Viscoelastic Properties of Proteins onto Liquid Crystal Phthalocyanine Surface Using Quartz Crystal Microbalance with Dissipation Technique
【24h】

Studies of Adsorption and Viscoelastic Properties of Proteins onto Liquid Crystal Phthalocyanine Surface Using Quartz Crystal Microbalance with Dissipation Technique

机译：利用耗散技术的石英晶体微天平研究蛋白质在液晶酞菁表面的吸附和粘弹性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents time-resolved adsorption behavior of lysozyme, bovine serum albumin (BSA), and immunogamma globulin (IgG) onto a liquid crystal phthalocyanine surface and concentrates on the kinetic, viscoelastic variation, interfacial hydration, and structural details obtained by quartz crystal microbalance dissipating monitoring (QCM-D) technique with the Voigt model. The rate of adsorption for lysozyme is faster than that of BSA and IgG. The Freundlich model can explain the adsorption isotherm of lysozyme, whereas an exponential growth model can describe that of BSA and IgG. Layer surface coverage has been found to increase for all three proteins with significant variation in surface packing density and viscoelastic parameters within the investigated concentration range. The adsorbed IgG and BSA form soft, water-rich multilayers with large energy dissipation. The layer viscosity and shear modulus have been found to decrease as the protein hydration increases with concentration in these cases. On the other hand, lysozyme forms a rigid, negligibly hydrated multilayer with higher values of viscosity, shear modulus. Among three proteins, IgG is found to be a good adsorbent for liquid crystal surface comparing their theoretical monolayer surface coverage.
机译：本文介绍了溶菌酶，牛血清白蛋白（BSA）和免疫丙种球蛋白（IgG）在液晶酞菁表面上的时间分辨吸附行为，并着重于动力学，粘弹性变化，界面水化和石英晶体微量天平获得的结构细节Voigt模型的耗散监控（QCM-D）技术。溶菌酶的吸附速率比BSA和IgG快。 Freundlich模型可以解释溶菌酶的吸附等温线，而指数增长模型可以描述BSA和IgG的等温线。已经发现，在所研究的浓度范围内，所有三种蛋白质的表面堆积密度和粘弹性参数都有显着变化，层表面覆盖率均增加。吸附的IgG和BSA形成具有大量能量耗散的柔软，富水的多层。在这些情况下，发现随着蛋白质水合度的增加，层的粘度和剪切模量会降低。另一方面，溶菌酶形成具有较高粘度和剪切模量值的刚性，可忽略的水合多层。与理论上的单层表面覆盖率相比，发现在三种蛋白质中，IgG是液晶表面的良好吸附剂。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号