Influence of temperature on the synthesis of block copolypeptide templated silica
Journal Title: Science Paper Online - Year 2009, Vol 4, Issue 6
Abstract
By using synthetic block copolypeptide Phe20-b-PBLG50 with the phenyl groups in both segments as a template, anilino-methyl triethoxy silane (AMTS) as an intermedium and benzyl ammine as catalyst, nanoporous silica with novel structure was synthesized at different aged temperature with the aid of π-π interaction. Under ambient condition, silica with unusual interior composite cells was obtained, which was the immobilization and transcription of self-assembly complex vesicles from block copolypeptide; Microporous silica rods were fabricated at 5 ℃, which may result from the rod-like a-helical aggregates of polypeptide; Microporous silica spheres were observed at 50 ℃, which was ascribed to the spherical self-organized structure curled from flexible chains of polypeptide at higher temperature. A new avenue to control nanoporous silica materials with novel interior structures according to the temperature-sensitivity of conformation and self-assembly of copolypeptide scaffolds was proposed.
Authors and Affiliations
Yuping Liu, Xin Tong, Zhurui Shen
Keywords
Related Articles
- EP ID EP96868
- DOI -
- Views 117
- Downloads 0
异构网络中基于网络选择CPC广播内容研究
本文基于欧盟E2R项目已提出的异构网络中CPC（感知导频信道）广播信道，对CPC可以广播的内容进行了研究。通过CPC广播终端能够使用的无线接入技术的功能和性能参数，终端可以实时评估网络的负载情况和所能提供的QoS保证，选择合适的网络接...
企业项目管理及其混沌特征分析
简要介绍了企业项目管理的基本内容。根据企业项目管理的特点，从混沌数学角度对其进行了分析。企业项目管理是一个复杂的非线性系统，它具有混沌特征，产生混沌的原因是企业项目管理的不确定性。并对其不确定性的原因进行了分析，对企业项...
钕掺杂对铈锆复合氧化物储氧性能的影响
通过共沉淀法合成了不同钕(Nd)掺杂量的铈锆复合氧化物。利用XRD、BET、EPR等手段研究了Nd对铈锆复合氧化物结构影响，并评价了样品在500 ℃的动态和静态储放氧特性。结果表明，Nd3+离子能够进入铈锆固溶体，导致晶格扭曲，促进四方富锆相向...
Research on load shedding for aggregation queries over data streams in the QoS adaptation framework
This paper studies the load shedding for aggregation queries over the data streams, which is based on the control-based QoS adaptation framework. In the case of that the CPU capacity is limited and the memory is over loa...
Analysis of surface stress in the thin bodies by <br /> natural boundary element method<br />
At the evaluation of surface stress in thin bodies by natural boundary element method, the nearly strongly singular integrals occurred in natural boundary integral equations when the boundary source points were close to...