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Photonic porous silicon as a pH sensor
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Pace, Stéphanie, Vasani, Roshan B., Zhao, Wei, Perrier, Sébastien and Voelcker, Nicolas H. (2014) Photonic porous silicon as a pH sensor. Nanoscale Research Letters, Volume 9 (Number 1). 420. doi:10.1186/1556-276X-9-420 ISSN 1556-276X.
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Official URL: http://dx.doi.org/10.1186/1556-276X-9-420
Abstract
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.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | R Medicine > RA Public aspects of medicine | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||
| Library of Congress Subject Headings (LCSH): | Porous silicon, Wounds and injuries -- Treatment, Optical detectors, Polymers in medicine | ||||||||
| Journal or Publication Title: | Nanoscale Research Letters | ||||||||
| Publisher: | Springer | ||||||||
| ISSN: | 1556-276X | ||||||||
| Official Date: | 21 August 2014 | ||||||||
| Dates: |
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| Volume: | Volume 9 | ||||||||
| Number: | Number 1 | ||||||||
| Number of Pages: | 7 | ||||||||
| Article Number: | 420 | ||||||||
| DOI: | 10.1186/1556-276X-9-420 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||
| Date of first compliant deposit: | 28 December 2015 | ||||||||
| Date of first compliant Open Access: | 28 December 2015 | ||||||||
| Funder: | Wound Management Innovation CRC, Australian Research Council. Nanotechnology Network (ARC NN) |
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