RT Journal Article T1 Minimal numerical ingredients describe chemical microswimmers’ 3-D motion A1 Bailey, Maximilian R. A1 Barriuso Gutiérrez, Carlos Miguel A1 Martín Roca, José A1 Niggel, Vincent A1 Carrasco-Fadanelli, Virginia A1 Buttinoni, Ivo A1 Pagonabarraga, Ignacio A1 Isa, Lucio A1 Valeriani, Chantal AB The underlying mechanisms and physics of catalytic Janus microswimmers is highly complex, requiring details of the associated phoretic fields and the physiochemical properties of catalyst, particle, boundaries, and the fuel used. Therefore, developing a minimal (and more general) model capable of capturing the overall dynamics of these autonomous particles is highly desirable. In the presented work, we demonstrate that a coarse-grained dissipative particle-hydrodynamics model is capable of describing the behaviour of various chemical microswimmer systems. Specifically, we show how a competing balance between hydrodynamic interactions experienced by a squirmer in the presence of a substrate, gravity, and mass and shape asymmetries can reproduce a range of dynamics seen in different experimental systems. We hope that our general model will inspire further synthetic work where various modes of swimmer motion can be encoded via shape and mass during fabrication, helping to realise the still outstanding goal of microswimmers capable of complex 3-D behaviour. PB Royal Society of Chemistry SN 2040-3364 YR 2024 FD 2024 LK https://hdl.handle.net/20.500.14352/134271 UL https://hdl.handle.net/20.500.14352/134271 LA eng NO Bailey, M. R., Gutiérrez, C. M. B., Martín-Roca, J., Niggel, V., Carrasco-Fadanelli, V., Buttinoni, I., ... & Valeriani, C. (2024). Minimal numerical ingredients describe chemical microswimmers’3-D motion. Nanoscale, 16(5), 2444-2451. NO Ministerio de Ciencia, Innovación y Universidades (España) NO Agencia Estatal de Investigación (España) NO European Commission NO Generalitat de Catalunya NO Ministerio de Economía, Comercio y Empresa (España) DS Docta Complutense RD 15 abr 2026