Nondeterministic Wetting of Janus Microspheres at the Oil/Water Interface.

Autor: Lee HM; Department of Chemical Engineering (BK21 Four Integrated Engineering Program), College of Engineering, Kyung Hee University, Yongin, Gyeonggi-do 17104, Republic of Korea., Jeong HW; Department of Chemical Engineering (BK21 Four Integrated Engineering Program), College of Engineering, Kyung Hee University, Yongin, Gyeonggi-do 17104, Republic of Korea., Revadekar C; Department of Chemical Engineering (BK21 Four Integrated Engineering Program), College of Engineering, Kyung Hee University, Yongin, Gyeonggi-do 17104, Republic of Korea., Lee SJ; Department of Polymer Engineering, The University of Suwon, Hwaseong, Gyeonggi-do 18323, Republic of Korea., Bae J; Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California San Diego, La Jolla, California 92093, United States., Im SH; Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea., Park BJ; Department of Chemical Engineering (BK21 Four Integrated Engineering Program), College of Engineering, Kyung Hee University, Yongin, Gyeonggi-do 17104, Republic of Korea.
Jazyk: angličtina
Zdroj: The journal of physical chemistry letters [J Phys Chem Lett] 2024 Nov 28; Vol. 15 (47), pp. 11815-11822. Date of Electronic Publication: 2024 Nov 19.
DOI: 10.1021/acs.jpclett.4c02919
Abstrakt: We investigate the nondeterministic wetting behaviors of Janus particles at the n -decane/water interface. Upon adsorption at the interface, only some particles reach their thermodynamically stable configuration, while many remain in random nonequilibrium states likely due to contact line pinning. Experimental data and Monte Carlo simulations show that particles in nonequilibrium states with lower three-phase contact angles exhibit reduced attractive forces due to a smaller radius of the three-phase contact line. We also find that vertical translation more easily leads to equilibrium than rotational motion. This work motivates further exploration into the effects of surface tension and surface roughness on identifying the pinning energy barrier, as well as the pinning behavior of biological materials.
Databáze: MEDLINE
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