Lithography-Free Technology for the Preparation of Digital Microfluidic (DMF) Lab-Chips with Droplet Actuation by Optoelectrowetting (OEW)

Figure 3

Drawing of the analytical set-up. On the left is a microscope plate with the chip holder to be described in Figure 4. A fiber of a spectrometer is attached underneath. The OEW light from a laser diode at a wavelength of 520 nm is regulated with a neutral density filter to a power of 150 nW and enters the set-up from the bottom directed via moveable mirrors.