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A Microfluidic Platform with Nanoparticle-Based Metal-Enhanced Fluorescence for pH Mapping Acidified Aqueous Solutions by CO2 Microbubbles

Published online by Cambridge University Press:  28 April 2016

Jérémie Asselin,
Mazeyar Parvinzadeh Gashti,
Denis Boudreau and
Jesse Greener
Jérémie Asselin
Affiliation:
Département de Chimie, Université Laval, Québec (QC), Canada G1V 0A6Centre d’optique, photonique et laser (COPL), Québec (QC), Canada G1V 0A6
Mazeyar Parvinzadeh Gashti
Affiliation:
Département de Chimie, Université Laval, Québec (QC), Canada G1V 0A6
Denis Boudreau
Affiliation:
Département de Chimie, Université Laval, Québec (QC), Canada G1V 0A6Centre d’optique, photonique et laser (COPL), Québec (QC), Canada G1V 0A6
Jesse Greener*
Affiliation:
Département de Chimie, Université Laval, Québec (QC), Canada G1V 0A6
*
*Corresponding email: jesse.greener@chm.ulaval.ca
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Abstract

A method for creating pH maps in microchannels containing liquid/liquid and liquid/gas phases comprised of water and CO2 is demonstrated. It is based on a glass slide coated with nanoparticles exhibiting metal-enhanced fluorescence. The time resolution is better than 500 ms, limited by the fluidic control. This work opens the way for new in situ measurements of physical dissolution and chemical reactions in dynamic CO2 gas-liquid systems.

Keywords

core/shellfluidicslithography (removal)

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Type
Articles
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MRS Advances , Volume 1 , Issue 28: Nanotechnology , 2016, pp. 2037 - 2043
Copyright
Copyright © Materials Research Society 2016 

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