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Experimental-Numerical Design and Evaluation of a Vibration Bioreactor Using Piezoelectric Patches

机译:使用压电贴片的振动生物反应器的实验数值设计与评价

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摘要

In this present study, we propose a method for exposing biological cells to mechanical vibration. The motive for our research was to design a bioreactor prototype in which in-depth in vitro studies about the influence of vibration on cells and their metabolism can be performed. The therapy of cancer or antibacterial measures are applications of interest. In addition, questions about the reaction of neurons to vibration are still largely unanswered. In our methodology, we used a piezoelectric patch (PZTp) for inducing mechanical vibration to the structure. To control the vibration amplitude, the structure could be excited at different frequency ranges, including resonance and non-resonance conditions. Experimental results show the vibration amplitudes expected for every frequency range tested, as well as the vibration pattern of those excitations. These are essential parameters to quantify the effect of vibration on cell behavior. Furthermore, a numerical model was validated with the experimental results presenting accurate results for the prediction of those parameters. With the calibrated numerical model, we will study in greater depth the effects of different vibration patterns for the abovementioned cell types.
机译:在本研究中,我们提出了一种将生物细胞暴露于机械振动的方法。我们研究的动机是设计一种生物反应器原型,其中可以进行关于振动对细胞的影响的深入研究及其代谢的研究。癌症或抗菌措施的治疗是感兴趣的应用。此外,关于神经元反应到振动的问题仍然很大程度上是未答复的问题。在我们的方法中,我们使用了一种压电贴片(PZTP)来诱导机械振动到该结构。为了控制振动幅度,可以在不同的频率范围内激发结构,包括谐振和非共振条件。实验结果表明,每个频率范围预期的振动幅度,以及那些激励的振动模式。这些是量化振动对细胞行为的影响的重要参数。此外,使用实验结果验证了数值模型,其提出了预测这些参数的准确结果。通过校准数值模型,我们将更深入地研究不同振动模式对上述细胞类型的影响。

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