Fig. 2
From: Self-organized structures at polymer gel surfaces: Mechanisms, controlled design, and perspectives

Self-organized structures formed at gel surfaces across different spatial scales. Reproduced from Ref. [26] under Creative Commons CC BY-NC-ND 4.0 License. Reproduced from Ref. [28] with permission from the Royal Society of Chemistry. Reprinted with permission from Matsukawa K et al.: Thermoresponsive surface-grafted gels: controlling the bulk volume change properties by surface-localized polymer grafting with various densities. Langmuir 2017, 33:13828-13833 (Ref. [27]). Copyright 2025 American Chemical Society