Orientational microrheology (B05)

示踪剂粒子的运动提供了洞察复杂物质的局部性质，具有特殊的空间和时间分辨率，使用特制的核壳胶体探针与光学镊子，并结合分子动力学模拟。在第一个资助期内发现的导致液态玻璃形成的机制，其在相空间中的区域，以及其机械和传输特性将通过实验和理论来确定。这包括实验装置的开发，以施加外部扭矩和力到椭球体颗粒上，以研究液体玻璃的稳定性极限和理论发展，以确定在原位和外部驱动下的颗粒运动。这也将扩展到纳米颗粒的组装。

The motion of tracer particles provides insights into the local properties of complex matter with exceptional spatial and temporal resolution using tailor-made core-shell colloidal probes together with optical tweezing, and combined with molecular dynamics simulations. The mechanisms leading to the formation of liquid glass discovered in the first funding period, its region in phase space, and its mechanical and transport properties will be determined experimentally and by theory. This includes the development of experimental set-ups to apply external torques and forces onto the ellipsoidal particles, to investigate the limits of stability of liquid glass and theoretical developments to determine the particle motions in situ and under external driving. This will also extend to assemblies of nanoparticles.