Moreover, an overview of conventional and more recent microfluidic methods for the generation of core–shell microparticles is presented. This paper also systematically reviews the different classes of core–shell microparticles based on their respective materials. The novel properties of the core–shell microparticles make them extremely suitable for pharmaceutical and biomedical applications, including cell encapsulation, cell study, targeted drug delivery, controlled drug release, food industry, catalysis, and environmental monitoring. The present review focuses on the core–shell microparticles, which have found practical applications in various fields. In the past few years, the research community has paid increasing attention to the generation and application of core–shell structures. Core-shell particles combine the features of both the core and shell materials, while exhibiting smart properties resulting from their materials. On-demand size controllable generation of non-Newtonian droplets is subsequently demonstrated following the same trend of the Newtonian counterparts.read more read lessĪbstract: Micro-nanoscale core–shell particles are distinguishable from other particle types because of their unique composition. The results reveal the negligible influence of viscoelasticity on the droplet formation process. Furthermore, experiments were repeated with 0.5 g/L and 1 g/L xanthan gum solutions as non-Newtonian fluids. An accurate prediction of the breakdown voltage for the walls also proved robustness of our model. The relative response time of the fluidic system to the applied AC voltage is characterised by the relative response time that is proportional to the ratio of the AC frequency to the conductivity of the dispersed phase. The response of the droplet formation process to AC excitation is characterised by the relative area of the formed droplet. At constant flow rates of both continuous and dispersed phases, the critical parameters for the droplet formation process are the magnitude, the frequency of the applied voltage and the conductivity of the dispersed phase. We used sodium chloride solution with various conductivities to adjust the response time of the fluidic system. Abstract: We investigated the influence of an alternate current (AC) electric field on droplet generation in a T-junction device.
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