Acupuncture Injection Combined with Electrokinetic Injection for Polydimethylsiloxane Microfluidic Devices

Figure 3

Schematic diagram to show the AICEI technique. (a) Before injection: a homemade capillary needle position is adjusted in the horizontal plane. (b) After injection: a sample segment is injected by applying acupuncture on a channel and applying a high voltage (single potential, 1 kV).

(a)

(b)