Figure 4From: Evaluation of stability and size distribution of sunflower oil-coated micro bubbles for localized drug delivery Process of formation of micro bubbles to liquid flow rate Q L = 12 μl/s and air flow rate Q a = 216.84 nl/s (a) beginning of strangulation of the micro bubble. (b) time-of pinch (separation micro bubble) (c) and (d) generated micro bubbles moving through the channel.Back to article page