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Micro-capillary coatings based on spiropyran polymeric brushes for metal ion binding, detection, and release in continuous flow
Citation
Dunne, A and Delaney, C and McKeon, A and Nesterenko, PN and Paull, B and Benito-Lopez, F and Diamond, D and Florea, L, Micro-capillary coatings based on spiropyran polymeric brushes for metal ion binding, detection, and release in continuous flow, Sensors, 18, (4) Article 1083. ISSN 1424-8220 (2018) [Refereed Article]
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Copyright Statement
Copyright 2018 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
Abstract
Micro-capillaries, capable of light-regulated binding and qualitative detection of divalent
metal ions in continuous flow, have been realised through functionalisation with spiropyran
photochromic brush-type coatings. Upon irradiation with UV light, the coating switches from the passive non-binding spiropyran form to the active merocyanine form, which binds different divalent metal ions (Zn2+, Co2+, Cu2+, Ni2+, Cd2+), as they pass through the micro-capillary. Furthermore, the merocyanine visible absorbance spectrum changes upon metal ion binding, enabling the ion uptake to be detected optically. Irradiation with white light causes reversion of the merocyanine to the passive spiropyran form, with simultaneous release of the bound metal ion from the micro-capillary coating.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | spiropyrans, polymer brushes, sensors, ROMP, coatings, photochromism, metal ion uptake and release, self-indicating system, micro-capillary |
| Research Division: | Chemical Sciences |
| Research Group: | Analytical chemistry |
| Research Field: | Separation science |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the chemical sciences |
| UTAS Author: | Nesterenko, PN (Professor Pavel Nesterenko) |
| UTAS Author: | Paull, B (Professor Brett Paull) |
| ID Code: | 126236 |
| Year Published: | 2018 |
| Web of Science® Times Cited: | 8 |
| Deposited By: | Austn Centre for Research in Separation Science |
| Deposited On: | 2018-05-30 |
| Last Modified: | 2019-03-08 |
| Downloads: | 23 View Download Statistics |
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