This project focused on the development of microbubbles that will be used in medical imaging. In this project, experiment and numerical studies were carried out to investigate the microbubbles behaviours. The experiment focused on creation of polymer type of microbubbles. The size distribution of the microbubbles was measured and calculated by using hemocytometer. The microbubbles size obtained from the different concentration of PVA was 5μm to 70μm.Bachelor of Engineering (Mechanical Engineering