Biswakarma, D and Dey, N and Bhattacharya, S (2023) Stimuli-Sensitive Pyrenylated Hydrogels as Optical Sensing Platform for Multiple Metal Ions. In: Organics, 4 (3). pp. 447-458.
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Abstract
In the present work, we report a thermoresponsive hydrogel formed by the self-assembly of compounds 1 and 2 Milli Q water. Both hydrogels showed thixotropic behavior. Atomic force microscopy (AFM) studies confirm the fiber-like microstructure of compounds 1 and 2, but denser fibers were observed in the case of compound 1. The hydrogel formed by compound 1 detected Cu2+, Fe3+, and Hg2+, whereas the hydrogel of 2 showed a change in the optical signal, specifically upon adding Cu2+ and Hg2+. Mechanistically, adding metal ions to the hydrogel resulted in the formation of a (1:1) complex with Fe3+ and Hg2+ and (2:1) with Cu2+. The detection of metal ions has also been achieved in real-life samples, such as in tap water. Low-cost portable gel-coated paper strips have also been developed for the onsite detection of these metal ions. © 2023 by the authors.
| Item Type: | Journal Article |
|---|---|
| Publication: | Organics |
| Publisher: | Multidisciplinary Digital Publishing Institute (MDPI) |
| Additional Information: | The copyright for this article belongs to authors. |
| Department/Centre: | Division of Chemical Sciences > Organic Chemistry Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 15 May 2024 11:13 |
| Last Modified: | 15 May 2024 11:13 |
| URI: | https://eprints.iisc.ac.in/id/eprint/84498 |
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