Front Cover: The cover image of the article 2300407 by Jaime C. Grunlan and co-workers features a superimposed apple onto a micrograph of a 200 nm nanobrick wall created by layer-by-layer assembly. Oxygen molecules are unable to breach the barrier to spoil the apple. This film has one of the best oxygen permeability at low and high humidity, showing promise for protecting consumer goods.

中文翻译：

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高湿度下具有高阻氧性的双粘土纳米砖壁薄膜

封面：Jaime C. Grunlan 及其同事撰写的文章 2300407 的封面图片是将苹果叠加在通过逐层组装创建的 200 nm 纳米砖墙的显微照片上。氧分子无法突破屏障而损坏苹果。该薄膜在低湿度和高湿度下具有最佳的透氧性之一，显示出保护消费品的前景。