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첨단연성물질 연구단
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Micromotor That Carries Its Own Fuel Internally

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Title
Micromotor That Carries Its Own Fuel Internally
Author(s)
Ruo Yu Dong; Yifan Zhang; Kai Lou; Steve Granick
Subject
MICRO/NANOMOTORS
Publication Date
2020-07
Journal
LANGMUIR, v.36, no.26, pp.7701 - 7705
Publisher
AMER CHEMICAL SOC
Abstract
© 2020 American Chemical Society. Micromotors enjoy burgeoning interest but a limitation of their design is to require continuous supply of new fuel. The preponderance of extant micromotors depend, for their motion, on irradiation by light or exposure to acid in their environment. Here we demonstrate a motor that carries its own fuel internally, in this sense representing an analogue, in micron-sized objects, of the internal combustion engine. The fuel is DPCP (diphenylcyclopropenone) microcrystal, a solid-state chemical that after ignition by UV light requires no further irradiation to sustain a chemical reaction that emits carbon monoxide gas that can be used to propel the particle on which this chemical resides. It is loaded asymmetrically onto inexpensive microparticles to produce internally fueled propulsion with speed up to ∼20 μm/s over distances up to 15 times the capsule length in water. Once ignited, the motors maintain their direction of motion and move without need for light to follow their path. Possible strategies to extend the idea beyond the current proof of concept are discussed
URI
https://pr.ibs.re.kr/handle/8788114/7785
DOI
10.1021/acs.langmuir.0c01486
ISSN
0743-7463
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > 1. Journal Papers (저널논문)
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