Orientational microrheology (B05)

示踪粒子的运动通过使用定制的核壳胶体探针和光学镊子，并结合分子动力学模拟，提供了对复杂物质具有特殊空间和时间分辨率的局部特性的见解。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，其力学和输运性质将通过实验和理论来确定。这包括在椭球粒子上施加外部扭矩和力的实验装置的发展，研究液态玻璃的稳定性极限，以及确定粒子在原位和外部驱动下运动的理论发展。这也将扩展到纳米粒子的组装。

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.