Hot Brownian Motion

热布朗运动

• 批准号: 58079228
• 负责人: Professor Dr. Frank Cichos
• 金额: --
• 依托单位: Institut für Theoretische Physik
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/58079228?language=en
• 关键词: Hot; Brownian; Motion

We plan to study the Brownian motion of laser-heated micro- and nanoparticles and to develop and test an effective Markov theory for such “hot Brownian motion”. We aim to establish these thermally isotropic particles as an efficient new quantitative tracer and spectroscopy tool, complementary to widely applied fluorescence techniques. Extending the concept of thermally manipulated Brownian motion we will consider heated particles with anisotropic temperature profiles to explore relations to the phenomenology and theory of self-propelled particles and active hydrodynamics, and options for applications in nanoscience and nanotechnology. The project integrates challenging tasks in sample preparation (surface functionalization, self-assembly of particle chains and 3D DNA construction), experiment (optics, single-molecule detection and manipulation, polymer physics and physics of nanoparticles), and theory (non-equilibrium statistical mechanics and fluctuating hydrodynamics), to be addressed by three closely collaborating groups from Leipzig and Dresden. The results of this project shall pave the way for applications of nanoscale heat sources to control nanoscale transport by optical means. We plan to study the Brownian motion of laser-heated micro- and nanoparticles and to develop and test an effective Markov theory for such “hot Brownian motion”. We aim to establish these thermally isotropic particles as an efficient new quantitative tracer and spectroscopy tool, complementary to widely applied fluorescence techniques. Extending the concept of thermally manipulated Brownian motion we will consider heated particles with anisotropic temperature profiles to explore relations to the phenomenology and theory of self-propelled particles and active hydrodynamics, and options for applications in nanoscience and nanotechnology. The project integrates challenging tasks in sample preparation (surface functionalization, self-assembly of particle chains and 3D DNA construction), experiment (optics, single-molecule detection and manipulation, polymer physics and physics of nanoparticles), and theory (non-equilibrium statistical mechanics and fluctuating hydrodynamics), to be addressed by three closely collaborating groups from Leipzig and Dresden. The results of this project shall pave the way for applications of nanoscale heat sources to control nanoscale transport by optical means.

我们计划研究激光加热的微颗粒和纳米颗粒的布朗运动，并为这种“热布朗运动”进行有效的马尔可夫理论。我们旨在将这些热介质颗粒建立为有效的新定量示踪剂和光谱工具，并完工到广泛施加的荧光技术。扩展了热操纵的布朗运动的概念，我们将考虑具有各向异性温度谱的加热颗粒，以探索与自propelled颗粒和主动流体动力学的现象学和理论的关系，以及用于纳米科学和纳米技术的应用。该项目将挑战任务集成到样品制备（表面功能化，粒子链和3D DNA构造的自组装），实验（光学，单分子检测和操纵，纳米颗粒的聚合物物理和物理学）以及理论（非平衡统计学机制和波动流体动力学），从三个封闭的组合中。该项目的结果应为纳米级热源的应用铺平道路，以通过光手段控制纳米级传输。我们计划研究激光加热的微颗粒和纳米颗粒的布朗运动，并为这种“热布朗运动”进行有效的马尔可夫理论。我们旨在将这些热介质颗粒建立为有效的新定量示踪剂和光谱工具，并完工到广泛施加的荧光技术。扩展了热操纵的布朗运动的概念，我们将考虑具有各向异性温度谱的加热颗粒，以探索与自propelled颗粒和主动流体动力学的现象学和理论的关系，以及用于纳米科学和纳米技术的应用。该项目将挑战任务集成到样品制备（表面功能化，粒子链和3D DNA构造的自组装），实验（光学，单分子检测和操纵，纳米颗粒的聚合物物理和物理学）以及理论（非平衡统计学机制和波动流体动力学），从三个封闭的组合中。该项目的结果应为纳米级热源的应用铺平道路，以通过光手段控制纳米级传输。