fig9

Figure 9. The illustration of the preparation and different applications of MOFs-based hydrogel. (A) The illustration of the fabrication procedure of the P(AA/PEG)-Zn-MOF@WO₃-3. And illustration of the patterning process of P(AA/PEG)-Zn-MOF@WO₃-3 hydrogel by irradiation with UV light through a mask. Reproduced with permission from ref^[119]. Copyright 2023 Elsever; (B) The illustration of the fabrication procedure and the information storage of the OFM + NMOF/gelatin/pHEAA hydrogel. Reprinted (adapted) with permission from ref^[122]. Copyright 2022 American Chemical Society; (C) The illustration of the fabrication procedure and the fertilizer release of MOF MIL-100(Fe)@CNFs hydrogel. Reproduced with permission from ref^[124]. Copyright 2021 Elsevier; (D) The illustration of the internal structure and application of the Ru@UiO-OH. The SEM image (1 μm) of Ru@UiO-OH hydrogel. And sensory hydrogel images for monitoring the freshness of shrimp stored under different conditions in different periods. Reproduced with permission from ref^[127]. Copyright 2023 Elsevier. MOFs: Metal-organic frameworks; UV: ultraviolet; OFM: organic fluorescent molecular; NMOF: nano metal−organic frameworks; SEM: scanning eletron microscope.