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Self-sensing of temperature rises on light emitting diode based optrodes
Objective. This work presents a method to determine the surface temperature of microphotonic medical implants like LEDs. Our inventive step is to use the photonic emitter (LED) employed in an implantable device as its own sensor and develop readout circuitry to accurately determine the surface tempe...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
IOP Publishing
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5802339/ https://www.ncbi.nlm.nih.gov/pubmed/29303113 http://dx.doi.org/10.1088/1741-2552/aaa56d |
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author | Dehkhoda, Fahimeh Soltan, Ahmed Ponon, Nikhil Jackson, Andrew O’Neill, Anthony Degenaar, Patrick |
author_facet | Dehkhoda, Fahimeh Soltan, Ahmed Ponon, Nikhil Jackson, Andrew O’Neill, Anthony Degenaar, Patrick |
author_sort | Dehkhoda, Fahimeh |
collection | PubMed |
description | Objective. This work presents a method to determine the surface temperature of microphotonic medical implants like LEDs. Our inventive step is to use the photonic emitter (LED) employed in an implantable device as its own sensor and develop readout circuitry to accurately determine the surface temperature of the device. Approach. There are two primary classes of applications where microphotonics could be used in implantable devices; opto-electrophysiology and fluorescence sensing. In such scenarios, intense light needs to be delivered to the target. As blue wavelengths are scattered strongly in tissue, such delivery needs to be either via optic fibres, two-photon approaches or through local emitters. In the latter case, as light emitters generate heat, there is a potential for probe surfaces to exceed the 2 °C regulatory. However, currently, there are no convenient mechanisms to monitor this in situ. Main results. We present the electronic control circuit and calibration method to monitor the surface temperature change of implantable optrode. The efficacy is demonstrated in air, saline, and brain. Significance. This paper, therefore, presents a method to utilize the light emitting diode as its own temperature sensor. |
format | Online Article Text |
id | pubmed-5802339 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | IOP Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-58023392018-02-13 Self-sensing of temperature rises on light emitting diode based optrodes Dehkhoda, Fahimeh Soltan, Ahmed Ponon, Nikhil Jackson, Andrew O’Neill, Anthony Degenaar, Patrick J Neural Eng Paper Objective. This work presents a method to determine the surface temperature of microphotonic medical implants like LEDs. Our inventive step is to use the photonic emitter (LED) employed in an implantable device as its own sensor and develop readout circuitry to accurately determine the surface temperature of the device. Approach. There are two primary classes of applications where microphotonics could be used in implantable devices; opto-electrophysiology and fluorescence sensing. In such scenarios, intense light needs to be delivered to the target. As blue wavelengths are scattered strongly in tissue, such delivery needs to be either via optic fibres, two-photon approaches or through local emitters. In the latter case, as light emitters generate heat, there is a potential for probe surfaces to exceed the 2 °C regulatory. However, currently, there are no convenient mechanisms to monitor this in situ. Main results. We present the electronic control circuit and calibration method to monitor the surface temperature change of implantable optrode. The efficacy is demonstrated in air, saline, and brain. Significance. This paper, therefore, presents a method to utilize the light emitting diode as its own temperature sensor. IOP Publishing 2018-04 2018-01-25 /pmc/articles/PMC5802339/ /pubmed/29303113 http://dx.doi.org/10.1088/1741-2552/aaa56d Text en © 2018 IOP Publishing Ltd http://creativecommons.org/licenses/by/3.0/ Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0) . Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
spellingShingle | Paper Dehkhoda, Fahimeh Soltan, Ahmed Ponon, Nikhil Jackson, Andrew O’Neill, Anthony Degenaar, Patrick Self-sensing of temperature rises on light emitting diode based optrodes |
title | Self-sensing of temperature rises on light emitting diode based optrodes |
title_full | Self-sensing of temperature rises on light emitting diode based optrodes |
title_fullStr | Self-sensing of temperature rises on light emitting diode based optrodes |
title_full_unstemmed | Self-sensing of temperature rises on light emitting diode based optrodes |
title_short | Self-sensing of temperature rises on light emitting diode based optrodes |
title_sort | self-sensing of temperature rises on light emitting diode based optrodes |
topic | Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5802339/ https://www.ncbi.nlm.nih.gov/pubmed/29303113 http://dx.doi.org/10.1088/1741-2552/aaa56d |
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