Academic Journal
Photo-responsive hydrogel-based re-programmable metamaterials
| Title: | Photo-responsive hydrogel-based re-programmable metamaterials |
|---|---|
| Authors: | Herit Patel, Jiehao Chen, Yuhang Hu, Alper Erturk |
| Source: | Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022) |
| Publisher Information: | Nature Portfolio, 2022. |
| Publication Year: | 2022 |
| Collection: | LCC:Medicine LCC:Science |
| Subject Terms: | Medicine, Science |
| More Details: | Abstract This paper explores a novel programmable metamaterial using stimuli-responsive hydrogels with a demonstration of bandgap formation and tuning. Specifically, a photo-responsive hydrogel beam that can achieve re-programmable periodicity in geometric and material properties through patterned light irradiation is designed. Hydrogels consist of polymeric networks and water molecules. Many unique properties of hydrogels, including bio-compatibility, stimuli-responsiveness, and low dissipation make them ideal for enabling re-programmable metamaterials for manipulating structural dynamic response and wave propagation characteristics. Bandgap generation and tunability in photo-responsive hydrogel-based metamaterial (in the form of a diatomic phononic chain) as well as the effects of system parameters such as light exposure pattern and photo-sensitive group concentration on the bandgap width and center frequency are systematically studied. In agreement with finite-element model simulations, it is observed that an increase in light exposure region size reduces both the bandgap width and center frequency, while an increase in the concentration of photo-sensitive group increases bandgap width, attenuation and reduces its center frequency. This work unveils the potential of stimuli-response hydrogels as a new class of low-loss soft metamaterials, unlike most other soft materials that are too lossy to sustain and exploit wave phenomena. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-022-15453-7 |
| Access URL: | https://doaj.org/article/7c9942768fa54ad6b4de35eb53a58157 |
| Accession Number: | edsdoj.7c9942768fa54ad6b4de35eb53a58157 |
| Database: | Directory of Open Access Journals |
| Full text is not displayed to guests. | Login for full access. |
| ISSN: | 20452322 |
|---|---|
| DOI: | 10.1038/s41598-022-15453-7 |
| Published in: | Scientific Reports |
| Language: | English |