Front Cover: In article number 1900425, Hyun Jeong Oh, Seok Chung and co‐workers reconstituted the 3D brain endothelial barrier in a microfluidic device with a hydrogel scaffold. The developed platform provides quantitative evaluation of the efficacy of cell‐penetrating peptide (CPP) utilizing receptor‐mediated transcytosis by various assays. The specific/non‐specific transcytosis of CPP in the microfluidic platform is demonstrated and evaluated.

中文翻译：

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使用微流体体外3D脑血管内皮屏障评估细胞穿透肽

封面：在第1900425号文章中，许贞正，徐重and及其同事在带有水凝胶支架的微流体装置中重建了3D脑内皮屏障。开发的平台通过各种测定方法，利用受体介导的胞吞作用，定量评估细胞穿透肽（CPP）的功效。证明和评估了CPP在微流体平台上的特异性/非特异性胞吞作用。