Work

A Dual Sensor for pH and Hydrogen Peroxide Using Polymer-Coated Optical Fibre Tips

Year: 2015

Type: article

Abstract: This paper demonstrates the first single optical fibre tip probe for concurrent detection of both hydrogen peroxide (H₂O₂) concentration and pH of a solution. The sensor is constructed by embedding two fluorophores: carboxyperoxyfluor-1 (CPF1) and seminaphtharhodafluor-2 (SNARF2) within a polymer matrix located on the tip of the optical fibre. The functionalised fibre probe reproducibly measures pH, and is able to accurately detect H₂O₂ over a biologically relevant concentration range. This sensor offers potential for non-invasive detection of pH and H₂O₂ in biological environments using a single optical fibre.

Source: Sensors

DOI: 10.3390/s151229893

Authors: Malcolm Purdey, Jeremy Thompson, Tanya Monro, Andrew Abell, Erik Schartner

Institutions: ARC Centre for Nanoscale BioPhotonics, The University of Adelaide, University of South Australia

Language: English

Topic: Analytical Chemistry and Sensors

Subfield: Bioengineering

Field: Chemical Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,137

Funders: Australian National Fabrication Facility, Cook Medical, ARC Centre for Nanoscale BioPhotonics, Australian Research Council