Open Access Repository

Micro-capillary coatings based on spiropyran polymeric brushes for metal ion binding, detection, and release in continuous flow

Downloads

Downloads per month over past year

Dunne, A, Delaney, C, McKeon, A, Nesterenko, PN ORCID: 0000-0002-9997-0650, Paull, B ORCID: 0000-0001-6373-6582, Benito-Lopez, F, Diamond, D and Florea, L 2018 , 'Micro-capillary coatings based on spiropyran polymeric brushes for metal ion binding, detection, and release in continuous flow' , Sensors, vol. 18, no. 4 , pp. 1-12 , doi: 10.3390/s18041083.

[img]
Preview
PDF
126236 - Micro-...pdf | Download (17MB)

| Preview

Abstract

Micro-capillaries, capable of light-regulated binding and qualitative detection of divalentmetal ions in continuous flow, have been realised through functionalisation with spiropyranphotochromic 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 Type: Article
Authors/Creators:Dunne, A and Delaney, C and McKeon, A and Nesterenko, PN and Paull, B and Benito-Lopez, F and Diamond, D and Florea, L
Keywords: spiropyrans, polymer brushes, sensors, ROMP, coatings, photochromism, metal ion uptake and release, self-indicating system, micro-capillary
Journal or Publication Title: Sensors
Publisher: Molecular Diversity Preservation International
ISSN: 1424-8220
DOI / ID Number: 10.3390/s18041083
Copyright Information:

Copyright 2018 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

Related URLs:
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP