Photonic porous silicon as a pH sensor

Chronic wounds do not heal within 3 months, and during the lengthy healing process, the wound is invariably exposed to bacteria, which can colonize the wound bed and form biofilms. This alters the wound metabolism and brings about a change of pH. In this work, porous silicon photonic films were coat...

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Detalles Bibliográficos
Autores principales: Pace, Stephanie, Vasani, Roshan B, Zhao, Wei, Perrier, Sébastien, Voelcker, Nicolas H
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2014
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4147967/
https://www.ncbi.nlm.nih.gov/pubmed/25177227
http://dx.doi.org/10.1186/1556-276X-9-420
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author Pace, Stephanie
Vasani, Roshan B
Zhao, Wei
Perrier, Sébastien
Voelcker, Nicolas H
author_facet Pace, Stephanie
Vasani, Roshan B
Zhao, Wei
Perrier, Sébastien
Voelcker, Nicolas H
author_sort Pace, Stephanie
collection PubMed
description Chronic wounds do not heal within 3 months, and during the lengthy healing process, the wound is invariably exposed to bacteria, which can colonize the wound bed and form biofilms. This alters the wound metabolism and brings about a change of pH. In this work, porous silicon photonic films were coated with the pH-responsive polymer poly(2-diethylaminoethyl acrylate). We demonstrated that the pH-responsive polymer deposited on the surface of the photonic film acts as a barrier to prevent water from penetrating inside the porous matrix at neutral pH. Moreover, the device demonstrated optical pH sensing capability visible by the unaided eye.
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spelling pubmed-41479672014-08-29 Photonic porous silicon as a pH sensor Pace, Stephanie Vasani, Roshan B Zhao, Wei Perrier, Sébastien Voelcker, Nicolas H Nanoscale Res Lett Nano Express Chronic wounds do not heal within 3 months, and during the lengthy healing process, the wound is invariably exposed to bacteria, which can colonize the wound bed and form biofilms. This alters the wound metabolism and brings about a change of pH. In this work, porous silicon photonic films were coated with the pH-responsive polymer poly(2-diethylaminoethyl acrylate). We demonstrated that the pH-responsive polymer deposited on the surface of the photonic film acts as a barrier to prevent water from penetrating inside the porous matrix at neutral pH. Moreover, the device demonstrated optical pH sensing capability visible by the unaided eye. Springer 2014-08-21 /pmc/articles/PMC4147967/ /pubmed/25177227 http://dx.doi.org/10.1186/1556-276X-9-420 Text en Copyright © 2014 Pace et al.; licensee Springer. http://creativecommons.org/licenses/by/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
spellingShingle Nano Express
Pace, Stephanie
Vasani, Roshan B
Zhao, Wei
Perrier, Sébastien
Voelcker, Nicolas H
Photonic porous silicon as a pH sensor
title Photonic porous silicon as a pH sensor
title_full Photonic porous silicon as a pH sensor
title_fullStr Photonic porous silicon as a pH sensor
title_full_unstemmed Photonic porous silicon as a pH sensor
title_short Photonic porous silicon as a pH sensor
title_sort photonic porous silicon as a ph sensor
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4147967/
https://www.ncbi.nlm.nih.gov/pubmed/25177227
http://dx.doi.org/10.1186/1556-276X-9-420
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AT vasaniroshanb photonicporoussiliconasaphsensor
AT zhaowei photonicporoussiliconasaphsensor
AT perriersebastien photonicporoussiliconasaphsensor
AT voelckernicolash photonicporoussiliconasaphsensor

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