article published yes Carla Fernández-Rico author 492def71-6250-11f0-b278-d41dbd241b62 Jeffrey S. Urbach author Roel P. A. Dullens author Surface roughness plays an important role in determining the mechanical properties, wettability, and self-assembly in colloidal systems. In this work, we develop a simple and fast method to produce rough colloidal SU-8 rods, bananas, and spheres, via the nanoprecipitation of SU-8 in water. During this process, SU-8 nanospheres are absorbed onto the surface of the colloidal SU-8 particles and then cross-linked using UV-light. The size of the spherical asperities and the asperity density are controlled by the concentration of SU-8 used during the nanoprecipitation reaction. Fluorescent labeling of the rough SU-8 colloidal particles allows for their confocal imaging, which demonstrates their stability at high packing fractions. With these newly developed rough particles, we provide a colloidal model system that allows for studies addressing the impact of surface roughness on materials composed of anisotropic particles. American Chemical Society2021 eng 0743-7463 1520-5827 3363567110.1021/acs.langmuir.0c03361 3792900-2906 yes Fernández-Rico, Carla, et al. “Synthesis of Rough Colloidal SU-8 Rods and Bananas via Nanoprecipitation.” <i>Langmuir</i>, vol. 37, no. 9, American Chemical Society, 2021, pp. 2900–06, doi:<a href="https://doi.org/10.1021/acs.langmuir.0c03361">10.1021/acs.langmuir.0c03361</a>. C. Fernández-Rico, J. S. Urbach, and R. P. A. Dullens, “Synthesis of rough colloidal SU-8 rods and bananas via nanoprecipitation,” <i>Langmuir</i>, vol. 37, no. 9. American Chemical Society, pp. 2900–2906, 2021. Fernández-Rico, Carla, Jeffrey S. Urbach, and Roel P. A. Dullens. “Synthesis of Rough Colloidal SU-8 Rods and Bananas via Nanoprecipitation.” <i>Langmuir</i>. American Chemical Society, 2021. <a href="https://doi.org/10.1021/acs.langmuir.0c03361">https://doi.org/10.1021/acs.langmuir.0c03361</a>. Fernández-Rico, C., Urbach, J. S., &#38; Dullens, R. P. A. (2021). Synthesis of rough colloidal SU-8 rods and bananas via nanoprecipitation. <i>Langmuir</i>. American Chemical Society. <a href="https://doi.org/10.1021/acs.langmuir.0c03361">https://doi.org/10.1021/acs.langmuir.0c03361</a> Fernández-Rico C, Urbach JS, Dullens RPA. 2021. Synthesis of rough colloidal SU-8 rods and bananas via nanoprecipitation. Langmuir. 37(9), 2900–2906. C. Fernández-Rico, J.S. Urbach, R.P.A. Dullens, Langmuir 37 (2021) 2900–2906. Fernández-Rico C, Urbach JS, Dullens RPA. Synthesis of rough colloidal SU-8 rods and bananas via nanoprecipitation. <i>Langmuir</i>. 2021;37(9):2900-2906. doi:<a href="https://doi.org/10.1021/acs.langmuir.0c03361">10.1021/acs.langmuir.0c03361</a> 222172026-06-30T06:36:01Z2026-07-15T07:48:42Z