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

ABSTRACT: This paper demonstrates the first single optical fibre tip probe for concurrent detection of both hydrogen peroxide (H?O?) 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 H?O? over a biologically relevant concentration range. This sensor offers potential for non-invasive detection of pH and H?O? in biological environments using a single optical fibre.

SUBMITTER: Purdey MS 

PROVIDER: S-EPMC4721812 | biostudies-other | 2015 Dec

REPOSITORIES: biostudies-other

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

Purdey Malcolm S MS   Thompson Jeremy G JG   Monro Tanya M TM   Abell Andrew D AD   Schartner Erik P EP  

Sensors (Basel, Switzerland) 20151217 12

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 sens  ...[more]