Gradients in the concentration of a solute can drive particle transport by inducing interfacial flows via imbalances in the osmotic pressure near surfaces. Now it seems that this mechanism is directing traffic on the cell membrane.

中文翻译：

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渗透坡上的生活

溶质浓度的梯度可通过表面附近渗透压的不平衡诱导界面流动，从而驱动颗粒传输。现在看来，这种机制正在引导细胞膜上的运输。