Optical particle manipulation using an LC device with eight-divided circularly hole-patterned electrodes

Liquid Crystal Display Device Having Patterned Electrodes for Repetitive Divided Horizontal Electric Field and Fringing Electric Field

Flexible acoustic particle manipulation device with integrated optical waveguide for enhanced microbead assays.

Realisation of a device intended for the manipulation and detection of bead-tagged DNA and other bio-molecules is presented. Acoustic radiation forces are used to manipulate polystyrene micro-beads into an optical evanescent field generated by a laser pumped ion-exchanged waveguide. The evanescent field only excites fluorophores brought within approximately 100 nm of the waveguide, allowing the...

Miniaturized Optical Particle Manipulation with Integrated VCSEL Arrays

In recent years, optical manipulation has gained increasing interest, especially in combination with microfluidics. The contamination-free handling of micrometer-sized particles without any mechanical contact is an attractive tool for biology and medicine. VCSELs (vertical-cavity surface-emitting lasers) are an excellent choice for the trapping lasers, offering the opportunity of miniaturizatio...

Optical Multiple-Particle Manipulation With a Rectangular-Shaped VCSEL

Optical manipulation of cells and particles is an efficient non-destructive technique for isolation and sorting in the field of biophotonics. For several years, vertical-cavity surfaceemitting lasers (VCSELs) have been investigated as light sources for particle manipulation inside microfluidic channels, where their small dimension and low power consumption enable direct integration with the cha...

Development of a new contactless dielectrophoresis system for active particle manipulation using movable liquid electrodes.

This study presents a new DEP manipulation technique using a movable liquid electrode, which allows manipulation of particles by actively controlling the locations of electrodes and applying on-off electric input signals. This DEP system consists of mercury as a movable liquid electrode, indium tin oxide (ITO)-coated glass, SU-8-based microchannels for electrode passages, and a PDMS medium cham...