Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 14, Issue 14, Pages 2460-2464Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201900277
Keywords
bubble growth; bubble propulsion; polymers; speed regulation; tubular micro-/nanomotors
Categories
Funding
- National Nature Science Foundation of China [21603047, 21573053, 51705108, 91648201, 51675140]
- China Postdoctoral Science Foundation [2017T100248]
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We report the bubble dragged microrocket consisting of functionalized multilayer polymer covered asymmetrically by platinum nanoparticles. The microrocket is pushed back during bubble growth over a small step and dragged forward over a big step during bubble explosion. Each bubble explosion induced a shock wave of gas which propagates in water at ultrafast speed. The bubble dragged microrocket can move along an approximate straight line instead of a fluctuating circle which is the trajectory of a bubble-pushed microrocket in most cases, which makes it a promising candidate for drug delivery and simulating rod-shaped bacteria.
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