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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Adv Mater. 2021 Apr 30;33(23):e2006582. doi: 10.1002/adma.202006582

Figure 7: Multi-Responsive Hydrogel Photonics:

Figure 7:

a| The conjugation of hydrogel magnetic responsiveness and optical structuring allows to modulate incident light wavelength by changing the structure via the changing magnetic field. Adapted with permission from ref. [152]. Copyright 2017, Wiley. b| Thermo-responsive PNIPAAm (Poly(N-isopropyl acrylamide) hydrogel films with cellulose nanocrystals can change their structure and shift their interaction with the light on temperatures above or below the critical value. Adapted with permission from ref. [158]. Copyright 2019, Elsevier. c| Electro-responsive hydrogels can change their shape and light interactions with varying voltage. Adapted under the terms of CC-BY license from ref. [159]. Copyright 2018, the authors. d| Electro-responsive hydrogels in devices capable of optical sensing electric field variations such as those in cardiac muscle contraction. Adapted with permission from ref. [160]. Copyright 2010, Elsevier.