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- W4238776908 abstract "<div> <div> <div> <p>Microspheres with catalytic caps have become a popular model system for studying self- propelled colloids. Existing experimental studies involve predominantly “smooth” particle surfaces. In this study we determine the effect of irregular surface deformations on the propulsive mechanism with a particular focus on speed. The particle surfaces were deformed prior to depositing a catalytic layer which resulted in the formation of nanoscopic pillars of catalyst. These features were shown to boost speed (~2×) when the underlying surface deformations are small (nanoscale), whilst large deformations afforded little difference despite a substantial apparent catalytic surface area. Colloids with deformed surfaces were more likely to display a mixture of rotational and translational propulsion than their “smooth” counterparts. </p> </div> </div> </div>" @default.
- W4238776908 created "2022-05-12" @default.
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- W4238776908 date "2017-12-15" @default.
- W4238776908 modified "2023-09-29" @default.
- W4238776908 title "Improving the engine power of a catalytic Janus-sphere micromotor by roughening its surface" @default.
- W4238776908 doi "https://doi.org/10.26434/chemrxiv.5702659" @default.
- W4238776908 hasPublicationYear "2017" @default.
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