近期，复旦大学材料科学系的梅永丰教授等在Nature Communications上发表题为Microdroplet-guided intercalation and deterministic delamination towards intelligent rolling origami的文章中，利用微液滴触发的薄膜剥离与卷曲行为提出了一种简便的卷曲三维微纳结构的制备方法，并证实了这一方法广泛的材料兼容性、规模化制备能力和对卷曲行为的精确控制能力。
摘要：Three-dimensional microstructures fabricated by origami, including folding, rolling and buckling, gain great interests in mechanics, optics and electronics. We propose a general strategy on on-demand and spontaneous rolling origami for artificial microstructures aiming at massive and intelligent production. Deposited nanomembranes are rolled-up in great amount triggered by the intercalation of tiny droplet, taking advantage of a creative design of van der Waals interaction with substrate. The rolling of nanomembranes delaminated by liquid permits a wide choice in materials as well as precise manipulation in rolling direction by controlling the motion of microdroplet, resulting in intelligent construction of rolling microstructures with designable geometries. Moreover, this liquid-triggered delamination phenomenon and constructed microstructures are demonstrated in the applications among vapor sensing, microresonators, micromotors, and microactuators. This investigation offers a simple, massive, low-cost, versatile and designable construction of rolling microstructures for fundamental research and practical applications.
