Patchy capsules are challenging to produce and the research on such capsules is therefore limited. This research project has developed a novel method for fabricating patchy particle capsules based on microfluidic equipment and electric fields. The method combined with our investigations on capsules in electric field will lay solid foundations for further development and applications within the field, and ultimately, for commercialization and products within biology, food, medicine, environmental science and material science. By employing external electric field, we have also developed new methods for propelling capsules. The propulsion methods differ from previous methods by using an electric field as the driving mechanism. Propelling capsules can perform a multitude task, for example cargo transport, driving nanomachines, removing toxic materials from water or human bodies, or actively controlling material behavior. Capsules with increased functionalities such as propulsion allow for improved products and processes through their impact on areas such as: material safety; reducing production costs; increasing material versatility and complexity; reducing system weight, power consumption and size. These impacts may in turn lead to great financial profit due to direct and positive impact on life quality, the environment, economic growth and sustainability. The results from this project will encourage more experimental research on particle capsules and move the field forward towards the ultimate goal of tailoring advanced microrobots that possess multiple functions, patent and economic market potential, as well as applications with social significance within soft-matter physics, medicine science, biotechnology, food science, materials science and applied sciences. The research project has also had an impact on my scientific career. Through various interdisciplinary experiments and scientific discussions with collaborators I have broadened my scientific expertise and increased my competitiveness among researchers within soft-matter physics, but also within other fields, e.g. chemical physics, biophysics, spectroscopy and scattering techniques. The project allowed me to develop my own ideas, gain versatile research experience, and to build a solid publication record and international reputation that will ultimately help me to set up an international research team. Through supervising MSc and PhD students, I have also developed my teaching, supervising and leadership skills. Morover, by attending special courses and workshops, I have developed my communication, networking and project management skills.