In recent years, nanoparticles have high importance in various areas such as biomedical, environmental or pharmaceutical applications due to their chemical and physical properties. In all these applications, maintaining control over the particle size and shape is of high significance due to their size and shape-dependent properties. The most abundant method of synthesis of nanoparticles is a batch process because of its fast and easy reaction setup. However, many types of nanoparticles are very sensitive to reaction parameters which directly affect the size and shape of the final particles and the process is hardly reproducible.In this work, we present nanoparticle synthesis using microfluidic devices. Compared to a batch process, microfluidics offers a high control over the reaction process by easy control of the system parameters (e.g. mixing and flow rates of reactants and reaction time) with the ability to make an operative change of parameters during the synthesis. Specifically, the synthesis of silica and silver nanoparticles using a droplet generation microfluidic device will be presented. The size and morphology of final nanoparticles will be analyzed and compared to a traditional batch method.Keywords: Nanoparticles, microfluidics, silver, flow-focusing
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