研究小组已经将纳米颗粒通过液体输送到了模型通道内，但还没有将他们和活体细胞在模型内层通道中移动。
The research team has already moved nanoparticles through the channels of the mold with fluid, but has not yet moved them through the model with living cells lining the finished product.
内层由乙烯基片组成，它被覆盖了光催化材料，这种基片可捕捉并中和空气中的有害颗粒。
The inner layer is made of vinyl strips coated in a photocatalyst material that captures and neutralises harmful particulates in the air.
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