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

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

Biological hydrogen peroxide detection with aryl boronate and benzil BODIPY-based fluorescent probes

Abstract not availableMalcolm S. Purdey, Hanna J. McLennan, Melanie L. Sutton-McDowall, Daniel W. Drumm, Xiaozhou Zhang, Patrick K. Capon, Sabrina Heng, Jeremy G. Thompson, Andrew D. Abel