报告题目: |
Stimuli-Induced Reversible Association in Surfactants, Polymers and Gels for Mediation of Thermodynamic and Transport Properties of Solutes |
报告人: |
T. Alan Hatton |
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美国麻省理工学院化学工程系教授
化工实习学院院长
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报告时间: |
2009-11-02 10:00 |
报告地点: |
化学工程系工物馆 324-东 会议室 |
主办单位: |
化学工程系 |
简介: |
The local environment within suitably tailored surfactant, polymer and gel systems can be regulated by the application of appropriate externally-applied stimuli such as temperature, pH, light, and redox conditions which can alter the state of association of components within the system. This modulation of the environment can be exploited to control the thermodynamic and transport properties of solutes within solutions and gels, to provide effective media for, among other applications, controlled drug release, selective separations by extraction and affinity adsorption processes, and dynamic mediation of protein mobilities in gel electrophoresis. In this presentation we will discuss the design, synthesis and characterization of stimuli-responsive materials in which the reversible self-association of functional groups can be used to control the extraction of polar organics from aqueous media, the selective separation of proteins within mixtures, the release of materials sequestered within the gels, and the folding and unfolding of proteins. |
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