Nanorheology of complex fluids and Development of the Virtual FM-AFM machine for studies of highly dissipating systems

复杂流体的纳米流变学和用于研究高耗散系统的虚拟 FM-AFM 机器的开发

• 批准号: 5411925
• 负责人: Dr. Dirk Dietzel
• 金额: --
• 依托单位: Centre de Physique Moléculaire Optique et Hertzienne (CPMOH)
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2005-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5411925?language=en
• 关键词: Nanorheology; complex; fluids; Development; Virtual

Beside the analysis of solids, where scanning probe microscopy is very well established, scanning probe techniques also offer unique analytical capabilities for the investigation of supported organic biological nanosystems. Here, dynamic scanning force microscopy (SFM), which uses an oscillating cantilever tip, is especially appropriate for the investigation of the topography of soft biological and organic materials, which often have to be analyzed in solution. Additionally, measurements of the minute interaction forces (picoNewton range) can yield a better understanding of biological activity and also shed light on dynamic properties of biological systems. Main goal of this work will be the analysis of nanorheology of complex fluids by dynamical SFM, which can be analyzed by variation of the interaction forces on different length scales. Another important part of the work will be the theoretical analysis of the signal generation process by use and development of a virtual dynamic SFM machine, which can help to eliminate artifical signal contributions and thus can make a reliable interpretation of the measured signals possible.

除了扫描探针显微镜非常成熟的固体分析之外，扫描探针技术还为支持的有机生物纳米系统的研究提供了独特的分析能力。在这里，动态扫描力显微镜（SFM），它使用一个振荡的悬臂梁尖端，是特别适合的软生物和有机材料，这往往要在溶液中进行分析的地形调查。此外，微小相互作用力（皮牛顿范围）的测量可以更好地了解生物活性，并揭示生物系统的动态特性。本论文的主要目标是利用动态SFM分析复杂流体的纳米流变性，通过分析不同长度尺度上相互作用力的变化来分析流体的纳米流变性。工作的另一个重要部分将是通过使用和开发虚拟动态SFM机器对信号生成过程进行理论分析，这可以帮助消除人为信号贡献，从而可以对测量信号进行可靠的解释。