Gallery

Representative figures and videos from my published research.

Microfluidic stenosis assay and thrombus profiling
Multi-parametric thrombus profiling microfluidics detects intensified biomechanical thrombogenesis associated with hypertension and aging
Din, M., et al., including Xu, R. G., Nature Communications 15, 9067 (2024). Nature Communications paper
Video for n = 5 → 4 liquidlike-to-solidlike phase transition
Supplementary video for Xu, R. G. and Leng, Y. S., Squeezing and Stick-Slip Friction Behaviors of Lubricants in Boundary Lubrication, Proceedings of the National Academy of Sciences 115, 6560-6565 (2018). PNAS paper
Visual abstract showing friction duality for an amorphous silica tip sliding on a gold surface
On the Friction Behavior of SiO2 Tip Sliding on the Au(111) Surface: How Does an Amorphous SiO2 Tip Produce Regular Stick-Slip Friction and Friction Duality?
Xu, R. G., Zhang, G., Xiang, Y., and Leng, Y. S., Langmuir 39, 6425-6432 (2023). Langmuir paper
Figure 3: liquid-vapor molecular dynamics simulation system for a confined polycrystalline lubricant filmFigure 5: stick-slip friction, dilation, crystalline populations, and dislocation lengthFigure 6: layer-resolved structural evolution during the first slip transitionFigure 7: Shockley partial dislocation formation, glide, and annihilation
On the shear dilation of polycrystalline lubricant films in boundary lubricated contacts
Xu, R. G., Xiang, Y., Papanikolaou, S., and Leng, Y. S., The Journal of Chemical Physics 152, 104708 (2020). JCP paper
Molecular simulation model of a dynamically oscillating AFM tip immersed in liquidAmplitude, phase, contact damping, and stiffness as functions of tip-surface separation
Contact stiffness and damping of liquid films in dynamic atomic force microscope
Xu, R. G. and Leng, Y. S., The Journal of Chemical Physics 144, 154702 (2016). JCP paper