Photovoltaic Manipulation of Water Microdroplets on a Hydrophobic LiNbO3 Substrate

Wettability Alteration and Enhanced Oil Recovery Induced by Proximal Adsorption of Na+ , Cl− , Liu1, Wani2, Alhassan3 et al. 2018Phys. Rev. Applied485270View full textAdd to dashboardCite

“…Surface wettability impacts a variety of issues that pertain to applications [1][2][3][4]. One of the major challenges in the oil industry is the enhancement of oil recovery (EOR) by water flooding in carbonate reservoirs [5][6][7][8][9][10][11][12][13][14][15][16][17].…”

“…Despite its importance, there exists no consensus on the specific wettability alteration mechanism that causes EOR [8]. A satisfactory understanding of wettability alteration has been lacking, due to the complicated interplay between ions such as Ca 2+ , Mg 2+ , SO 4 2-, Na + and Clin saline water and the calcite (CaCO 3 ) surface.…”

Recent Achievements on Photovoltaic Optoelectronic Tweezers Based on Lithium Niobate

“…This is particularly relevant for the rapidly expanding field of biomedical applications. Although in principle, the theoretical description follows the same scheme as for solid particles, some new concepts have to be considered such as surface tension and electrowetting [32]. Finally, theoretical approaches have focused on the steady state situation to describe the final particle density profiles after particles are trapped on the crystal surface.…”

“…Finally, Fan et al [32] presented a remarkable work demonstrating water microdroplet manipulation by PVT. The innovation in this work is the coating of the LiNbO 3 :Fe substrate with a thin hydrophobic film.…”

Real‐Time Operation of Photovoltaic Optoelectronic Tweezers: New Strategies for Massive Nano‐object Manipulation and Reconfigurable Patterning

“…This property makes PVOT very well suited to produce micro‐ and nanoparticle stable patterns. In fact, the fabrication of patterns with a very large number of metallic or dielectric particles distributed over a relatively large area, more than 1000 × 1000 µm has been already reported and a variety of applications in different fields, such as photonics, nanotechnology, biotechnology, and optofluidics, have been recently proposed and tested. PVOT manipulation involves not only the electrical response of the particles but also the singular optoelectronic behavior of the ferroelectric substrate .…”