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The ultrasound-triggered explosion of an endoskeletal antibubble yields a predictable fragment size distribution

Recently, the first high-speed video of a fragmenting antibubble was published. Nonetheless, this fragmentation process was not fully understood. Owing to a recent study on fragmenting glass, we can now conclude that an antibubble under tensile stress undergoes an exponential fragmentation process. This note gives a brief theoretical explanation and the first experimental data of a fragmenting antibubble. This is a highly relevant finding, as the fragmentation predictability of acoustically active antibubbles is required for their potential use in ultrasound-guided drug delivery.