Falko Schmidt is sharing a novel optofluidic toolbox for the precise manipulation of local fluid flows and particle movement with the BPPB community. It's a reconfigurable way of controlling the motion of soft matter objects from colloids to cells that imitates the presence of physical barriers solely via local heating of a surface. Presented are different manipulation modes from steering, trapping, collection and splitting. This might have particular use for the sorting and channeling of microscopic objects in microfluidic channels.
See the recording of the talk below.
Title of Talk: Dynamic 3D Optofluidic Control - A multifunctional platform for microfluidic applications
See the recording of the talk below.
Title of Talk: Dynamic 3D Optofluidic Control - A multifunctional platform for microfluidic applications
Time/Date: 14.03.2025
Place: Online, Biological Physics and Physical Biology (BPPB) Seminar
Abstract:
Optothermal and optofluidic manipulation have been proven successful tools to precisely steer the motion of particles, cells and biomolecules using a combination of optical, thermal and hydrodynamic forces. Here, we show that a proper 3D engineering of thermal landscapes induces short- and long-range microfluidic flows to guide, trap and sort microparticles. By alternating between different patterns of illumination over time, various types of microfluidic actuators are created such as pumps, traps, and vales, all within a single chip environment.
Optothermal and optofluidic manipulation have been proven successful tools to precisely steer the motion of particles, cells and biomolecules using a combination of optical, thermal and hydrodynamic forces. Here, we show that a proper 3D engineering of thermal landscapes induces short- and long-range microfluidic flows to guide, trap and sort microparticles. By alternating between different patterns of illumination over time, various types of microfluidic actuators are created such as pumps, traps, and vales, all within a single chip environment.