Investigation of molecular probes sensitivity to the fenton reaction using fluorescence spectroscopy

Venkateshkumar Prabhakaran; Christopher G. Arges; Vijay K. Ramani

doi:10.1149/1.3484582

Investigation of molecular probes sensitivity to the fenton reaction using fluorescence spectroscopy

Venkateshkumar Prabhakaran, Christopher G. Arges, Vijay K. Ramani

Chemical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

A fluorescence spectroscopy system has been set up for studying the interaction of molecular probes (fluorescent dyes) with hydroxy and hydroperoxy radicals. From this work, a method will be developed for in-directly monitoring the chemical degradation of the Nafion® membrane in-situ during fuel cell operation. Different molecular probes (Fluorescein and 6-carboxy Fluorescein) have had their fluorescence signal assessed in solvent environments of varying pH. Stern-Volmer relationships have been observed and fitted to correlate hydrogen peroxide concentration to fluorescent signal quenching. Additionally, free radical scavengers were added to formulations and have shown to mitigate the free radical attack on the molecular probe.

Original language	English (US)
Title of host publication	Polymer Electrolyte Fuel Cells 10, PEFC 10
Pages	889-897
Number of pages	9
Edition	1 PART 1
DOIs	https://doi.org/10.1149/1.3484582
State	Published - 2010
Event	10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting - Las Vegas, NV, United States Duration: Oct 10 2010 → Oct 15 2010

Publication series

Name	ECS Transactions
Number	1 PART 1
Volume	33
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting
Country/Territory	United States
City	Las Vegas, NV
Period	10/10/10 → 10/15/10

All Science Journal Classification (ASJC) codes

Engineering(all)

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10.1149/1.3484582

Cite this

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title = "Investigation of molecular probes sensitivity to the fenton reaction using fluorescence spectroscopy",

abstract = "A fluorescence spectroscopy system has been set up for studying the interaction of molecular probes (fluorescent dyes) with hydroxy and hydroperoxy radicals. From this work, a method will be developed for in-directly monitoring the chemical degradation of the Nafion{\textregistered} membrane in-situ during fuel cell operation. Different molecular probes (Fluorescein and 6-carboxy Fluorescein) have had their fluorescence signal assessed in solvent environments of varying pH. Stern-Volmer relationships have been observed and fitted to correlate hydrogen peroxide concentration to fluorescent signal quenching. Additionally, free radical scavengers were added to formulations and have shown to mitigate the free radical attack on the molecular probe.",

author = "Venkateshkumar Prabhakaran and Arges, {Christopher G.} and Ramani, {Vijay K.}",

year = "2010",

doi = "10.1149/1.3484582",

language = "English (US)",

isbn = "9781566778206",

series = "ECS Transactions",

number = "1 PART 1",

pages = "889--897",

booktitle = "Polymer Electrolyte Fuel Cells 10, PEFC 10",

edition = "1 PART 1",

note = "10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting ; Conference date: 10-10-2010 Through 15-10-2010",

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Prabhakaran, V, Arges, CG & Ramani, VK 2010, Investigation of molecular probes sensitivity to the fenton reaction using fluorescence spectroscopy. in Polymer Electrolyte Fuel Cells 10, PEFC 10. 1 PART 1 edn, ECS Transactions, no. 1 PART 1, vol. 33, pp. 889-897, 10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting, Las Vegas, NV, United States, 10/10/10. https://doi.org/10.1149/1.3484582

Investigation of molecular probes sensitivity to the fenton reaction using fluorescence spectroscopy. / Prabhakaran, Venkateshkumar; Arges, Christopher G.; Ramani, Vijay K.

Polymer Electrolyte Fuel Cells 10, PEFC 10. 1 PART 1. ed. 2010. p. 889-897 (ECS Transactions; Vol. 33, No. 1 PART 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Investigation of molecular probes sensitivity to the fenton reaction using fluorescence spectroscopy

AU - Prabhakaran, Venkateshkumar

AU - Arges, Christopher G.

AU - Ramani, Vijay K.

PY - 2010

Y1 - 2010

N2 - A fluorescence spectroscopy system has been set up for studying the interaction of molecular probes (fluorescent dyes) with hydroxy and hydroperoxy radicals. From this work, a method will be developed for in-directly monitoring the chemical degradation of the Nafion® membrane in-situ during fuel cell operation. Different molecular probes (Fluorescein and 6-carboxy Fluorescein) have had their fluorescence signal assessed in solvent environments of varying pH. Stern-Volmer relationships have been observed and fitted to correlate hydrogen peroxide concentration to fluorescent signal quenching. Additionally, free radical scavengers were added to formulations and have shown to mitigate the free radical attack on the molecular probe.

AB - A fluorescence spectroscopy system has been set up for studying the interaction of molecular probes (fluorescent dyes) with hydroxy and hydroperoxy radicals. From this work, a method will be developed for in-directly monitoring the chemical degradation of the Nafion® membrane in-situ during fuel cell operation. Different molecular probes (Fluorescein and 6-carboxy Fluorescein) have had their fluorescence signal assessed in solvent environments of varying pH. Stern-Volmer relationships have been observed and fitted to correlate hydrogen peroxide concentration to fluorescent signal quenching. Additionally, free radical scavengers were added to formulations and have shown to mitigate the free radical attack on the molecular probe.

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BT - Polymer Electrolyte Fuel Cells 10, PEFC 10

T2 - 10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting

Y2 - 10 October 2010 through 15 October 2010

ER -

Investigation of molecular probes sensitivity to the fenton reaction using fluorescence spectroscopy

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