New research conducted by engineers at the Massachusetts Institute of Technology and the University
With the help of new videos, the teamThe Massachusetts Institute of Technology has recorded the dynamics of the impact for use in further research. Since the droplets in their experiments were transparent, the researchers were also able to trace what happens inside the droplet as the jet passes.
Based on these experiments, the researchersdeveloped a model that predicts how a liquid stream will affect a droplet of a certain viscosity and elasticity. Since human skin is also a viscoelastic material, they say the model can be tuned to predict how fluids can be delivered through the skin without using needles.
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This study will help develop modernneedleless injection systems that use a variety of means to rapidly deliver a drug through the natural pores of the skin. For example, Portal Instruments is working on a development that uses an electromagnetic actuator to eject a thin stream of drug at a rapid rate to penetrate the skin into muscle. The team is developing a needleless injection system to inject smaller amounts of drug into thinner layers of the skin - to the depth at which tattoos are applied.
«Мы хотим изучить, как можно сделать инъекцию без иглы таким образом, чтобы минимизировать повреждение кожи. Благодаря этим экспериментам мы получаем все эти знания, которые позволят нам понять, как создать струи с нужной скоростью и формой для введения в кожу», — отметили исследователи.
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