@article{
 title = {Improving the engine power of a catalytic Janus-sphere micromotor by roughening its surface},
 type = {article},
 year = {2018},
 keywords = {Humanities and Social Sciences,Science,multidisciplinary},
 pages = {4622},
 volume = {8},
 websites = {http://www.nature.com/articles/s41598-018-22917-2},
 publisher = {Nature Publishing Group},
 id = {22473da5-ba8d-3da7-85af-e01e81ffda97},
 created = {2024-01-02T14:09:31.788Z},
 accessed = {2018-03-15},
 file_attached = {true},
 profile_id = {36921318-7a81-32e6-acca-75b835acd8f1},
 group_id = {f2d52f92-0a5a-3712-a53b-a4492da8da5f},
 last_modified = {2024-01-02T14:09:51.488Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 private_publication = {false},
 abstract = {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 of polymer microspheres were deformed prior to depositing a layer of platinum which resulted in the formation of nanoscopic pillars of catalyst. Self-propulsion was induced upon exposure of the micromotors to hydrogen peroxide, whilst they were dispersed in water. The topological surface features were shown to boost speed (~2×) when the underlying 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.},
 bibtype = {article},
 author = {Longbottom, Brooke W. and Bon, Stefan A. F.},
 doi = {10.1038/s41598-018-22917-2},
 journal = {Scientific Reports},
 number = {1}
}

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