Data for: Solvent mixing generating air bubbles as a template for polydopamine nanobowl fabrication: underlying mechanism, nanomotor assembly and application in cancer treatment

Fabrication of hollow or bowl-like materials using gas bubbles as templates is an attractive technique. However, it is challenging to develop simple and mild methods that produce nanosized and homogeneous gas bubble templates. Herein, excess air could outgas in the form of bubbles by mixing water and water-soluble solvents in the proper proportion. And polydopamine (PDA) nanobowls are fabricated using these bubble templates.