Keep 'em separated: A curved surface resembling the peristome, that is, the fringe of small projections around the opening of a capsule of a tropical pitcher plant is prepared. It enables the spontaneous separation of water and oil from micro-scale water-in-oil drops without energy input. The separation occurs within milliseconds and the separated liquids are spontaneously and uni-directionally transported in different directions.

中文翻译：

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蠕动模拟曲面，用于油包水微滴的自发性和方向性分离

保持它们的分离：准备一个类似Peristome的曲面，即准备一个热带投手植物的胶囊开口周围的小突起边缘。它可以自发地从微小的油包水液滴中分离出水和油，而无需输入能量。分离发生在几毫秒内，并且分离出的液体在不同方向上自发单向传输。