Abstract This paper presents numerical studies of thermophoresis approach for separation of nanoparticles in liquid media. We simulated the thermophoresis process to test it as a method of separation of particles in suspension. At the same time, the specific software was appraised to establish whether it would meet the computational challenge. Then, a microfluidic device designed to separate different species of nanoparticles using thermal gradients was conceptualised. We used a theoretical nanoparticle species with diameters ranging between 40 and 250 nm. Different geometrical models, temperature gradients and entry flows were simulated to analyse their effect on the separation of nanoparticle species. On the basis of our results, we formulated a proposal for construction of efficient nanoparticle separation device.

中文翻译：

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热泳作为一种在微流体装置中分离纳米粒子的技术

摘要 本文介绍了热泳法在液体介质中分离纳米颗粒的数值研究。我们模拟了热泳过程，以将其作为一种分离悬浮液中颗粒的方法进行测试。同时，对特定软件进行了评估，以确定它是否能够满足计算挑战。然后，设计用于使用热梯度分离不同种类的纳米粒子的微流体装置被概念化。我们使用了直径在 40 到 250 nm 之间的理论纳米粒子种类。模拟了不同的几何模型、温度梯度和进入流，以分析它们对纳米颗粒物质分离的影响。基于我们的研究结果，我们制定了构建高效纳米颗粒分离装置的建议。