@article { , title = {Inducing drop to bubble transformation via resonance in ultrasound}, abstract = {Bubble formation plays an important role in industries concerned with mineral flotation, food, cosmetics, and materials, which requires additional energy to produce the liquid–gas interfaces. A naturally observed fact is, owing to the effect of surface tension, a bubble film tends to retract to reduce its surface area. Here we show a “reverse” phenomenon whereby a drop is transformed into a bubble using acoustic levitation via acoustic resonance. Once the volume of the cavity encapsulated by the buckled film reaches a critical value V*, resonance occurs and an abrupt inflation is triggered, leading to the formation of a closed bubble. Experiments and simulations both reveal that V* decreases with increasing acoustic frequency, which agrees well with acoustic resonance theory. The results afford enlightening insights into acoustic resonance and highlight its role in manipulating buckled fluid–fluid interfaces, providing a reference for fabricating unique core–shell-like materials.}, doi = {10.1038/s41467-018-05949-0}, eissn = {2041-1723}, issue = {1}, journal = {Nature Communications}, publicationstatus = {Published}, publisher = {Nature Publishing Group}, url = {https://hull-repository.worktribe.com/output/1056067}, volume = {9}, keyword = {Specialist Research - Other, General Biochemistry, Genetics and Molecular Biology, General Physics and Astronomy, General Chemistry}, year = {2018}, author = {Zang, Duyang and Li, Lin and Di, Wenli and Zhang, Zehui and Ding, Changlin and Chen, Zhen and Shen, Wei and Binks, Bernard P. and Geng, Xingguo} }