Experimental study reveals entropy-driven long-ranged forces govern microgel self-assembly at the air/water interface, clarifying structural interactions during two-dimensional phase transitions.
We experimentally investigate the contribution of the interchain interaction to the interfacial stress and self-assembly of microgels at the air/water interface. Our results suggest that the intercorona penetrations contribute to an entropy-driven long-ranged force. The structural parameter and binding energy between neighboring microgels are given by using the radial distribution function, which further clarifies the intercorona and intercore interactions during the 2D phase transition.
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Liu et al. (2025) studied this question.
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