Zhi-Gang Feng

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An analytical model is proposed to calculate the initial infusion of a microneedle array driven by a micropump. By assuming the initial infusion of each microneedle undergoes a spherical expansion, the model is able to calculate the time-varying expansion radius, as well as the flow rate and infusion pressure, provided that the material properties and the(More)
BACKGROUND Micro-needles were proposed as one of the alternatives to deliver drugs painlessly passing through stratum corneum in recent years. In this work, a mathematical model is presented to characterize the in fusion flow of a hollow micro-needle array driven by a micro-pump. METHODS By assuming the injection of each micro-needle undergoes a spherical(More)
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