1. Colloid is an interesting material because it's big enough that its position can be accurately tracked but small enough that it is still under Brownian motion. With MOON particles(half metal capped florescent particles), we can detect the position and angle of particles and study hydrodynamics in terms of translational motion and rotational motion at the same time. I am focused to following three topics.

1) Rotational properties of colloids in highly concentrated colloidal suspension (glass states)

2) Rotational hydrodynamic interaction between particles

3) Effect of surface chemistry on dynamics of colloidal particles.

2. Friction is fundamental phenomenon and has been of interest for many years. But the research has been limited to measuring mechanical responses. In this group, we have a novel technique, SFA which enables us to confine fluid to nanometer scale and by combining Raman spectroscopy with SFA, we study molecular dynamics under confinement and under shear. We learned that surface properties of substrates can induce molecular alignment and shear can enhance or disrupt the alignment depending on substrate properties.

Myself

Apart from work, I love traveling. I can talk about new places and new experiences for hours and hours without getting sick of it. I like outdoor activities too like, running, tennis and my favorite, skiing.