Back to Search
Start Over
Stimuli-Sensitive Pyrenylated Hydrogels as Optical Sensing Platform for Multiple Metal Ions.
- Source :
- Organics; Sep2023, Vol. 4 Issue 3, p447-458, 12p
- Publication Year :
- 2023
-
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 Cu<superscript>2+</superscript>, Fe<superscript>3+</superscript>, and Hg<superscript>2+</superscript>, whereas the hydrogel of 2 showed a change in the optical signal, specifically upon adding Cu<superscript>2+</superscript> and Hg<superscript>2+</superscript>. Mechanistically, adding metal ions to the hydrogel resulted in the formation of a (1:1) complex with Fe<superscript>3+</superscript> and Hg<superscript>2+</superscript> and (2:1) with Cu<superscript>2+</superscript>. 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- HYDROGELS
OPTICAL sensors
METAL ions
ATOMIC force microscopy
MICROSTRUCTURE
Subjects
Details
- Language :
- English
- ISSN :
- 2673401X
- Volume :
- 4
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Organics
- Publication Type :
- Academic Journal
- Accession number :
- 172394615
- Full Text :
- https://doi.org/10.3390/org4030032