4 papers
Observation of contact angle hysteresis due to inhomogeneous electric fields
Wei Wang, Qi Wang, Jia Zhou +1
Static contact angle hysteresis (CAH) is widely attributed to surface roughness and chemical contamination. In the latter case, chemical defects create free-energy barriers that pr…
Mechanical characterization of cells and microspheres sorted by acoustophoresis with in-line resistive pulse sensing
Antoine Riaud, Anh L. P. Thai, Wei Wang +1
Resistive Pulse Sensing (RPS) is a key label-free technology to measure particles and single-cell size distribution. As a growing corpus of evidence supports that cancer cells exhi…
On-demand contact line pinning during droplet evaporation
Wei Wang, Qi Wang, Kaidi Zhang +3
Depending on the contact line motion, colloid-rich drolets evaporation can leave a ring-like or a spot-like residue. Herein, we determine this outcome by controlling the contact li…
Trajectory of particles exposed to a tilted-angle washboard potential: application to high-throughput acoustophoresis in microchannels
Wei Wang, Jia Zhou, Antoine Riaud
A wide variety of tilted washboard potentials based on acoustic waves, electric fields, optical patterns and so on have been applied to sort particles in microchannels. In this pap…