Adipose Fin as a Natural “Optical Window” for Implantation of Fluorescent Sensors into Salmonid Fish
Implantable optical sensors are emerging tools that have the potential to enable constant real-time monitoring of various internal physiological parameters. Such a possibility will open new horizons for health control not only in medicine, but also in animal husbandry, including aquaculture. In this...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/12/21/3042 |
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| author | Yaroslav Rzhechitskiy Anton Gurkov Nadezhda Bolbat Ekaterina Shchapova Anna Nazarova Maxim Timofeyev Ekaterina Borvinskaya |
| author_facet | Yaroslav Rzhechitskiy Anton Gurkov Nadezhda Bolbat Ekaterina Shchapova Anna Nazarova Maxim Timofeyev Ekaterina Borvinskaya |
| author_sort | Yaroslav Rzhechitskiy |
| collection | DOAJ |
| description | Implantable optical sensors are emerging tools that have the potential to enable constant real-time monitoring of various internal physiological parameters. Such a possibility will open new horizons for health control not only in medicine, but also in animal husbandry, including aquaculture. In this study, we analyze different organs of commonly farmed rainbow trout (<i>Oncorhynchus mykiss</i>) as implantation sites for fluorescent sensors and propose the adipose fin, lacking an endoskeleton, as the optimal choice. The fin is highly translucent due to significantly thinner dermis, which makes the detectable fluorescence of an implanted sensor operating at the visible light range by more than an order of magnitude higher relative to the skin. Compared to the proximal parts of ray fins, the adipose fin provides easy implantation and visualization of the sensor. Finally, we tested fluorescent pH sensors inside the adipose fin and demonstrated the possibility of acquiring their signal with a simple hand-held device and without fish anesthesia. All these features will most likely make the adipose fin the main “window” into the internal physiological processes of salmonid fish with the help of implantable optical sensors. |
| first_indexed | 2024-03-09T19:19:41Z |
| format | Article |
| id | doaj.art-08b987832f2348c9a64f809e4bf20147 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-09T19:19:41Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-08b987832f2348c9a64f809e4bf201472023-11-24T03:26:11ZengMDPI AGAnimals2076-26152022-11-011221304210.3390/ani12213042Adipose Fin as a Natural “Optical Window” for Implantation of Fluorescent Sensors into Salmonid FishYaroslav Rzhechitskiy0Anton Gurkov1Nadezhda Bolbat2Ekaterina Shchapova3Anna Nazarova4Maxim Timofeyev5Ekaterina Borvinskaya6Institute of Biology, Irkutsk State University, 664025 Irkutsk, RussiaInstitute of Biology, Irkutsk State University, 664025 Irkutsk, RussiaInstitute of Biology, Irkutsk State University, 664025 Irkutsk, RussiaInstitute of Biology, Irkutsk State University, 664025 Irkutsk, RussiaInstitute of Biology, Irkutsk State University, 664025 Irkutsk, RussiaInstitute of Biology, Irkutsk State University, 664025 Irkutsk, RussiaInstitute of Biology, Irkutsk State University, 664025 Irkutsk, RussiaImplantable optical sensors are emerging tools that have the potential to enable constant real-time monitoring of various internal physiological parameters. Such a possibility will open new horizons for health control not only in medicine, but also in animal husbandry, including aquaculture. In this study, we analyze different organs of commonly farmed rainbow trout (<i>Oncorhynchus mykiss</i>) as implantation sites for fluorescent sensors and propose the adipose fin, lacking an endoskeleton, as the optimal choice. The fin is highly translucent due to significantly thinner dermis, which makes the detectable fluorescence of an implanted sensor operating at the visible light range by more than an order of magnitude higher relative to the skin. Compared to the proximal parts of ray fins, the adipose fin provides easy implantation and visualization of the sensor. Finally, we tested fluorescent pH sensors inside the adipose fin and demonstrated the possibility of acquiring their signal with a simple hand-held device and without fish anesthesia. All these features will most likely make the adipose fin the main “window” into the internal physiological processes of salmonid fish with the help of implantable optical sensors.https://www.mdpi.com/2076-2615/12/21/3042implantable sensorsoptical sensorsrainbow troutskin transparencytissue pH |
| spellingShingle | Yaroslav Rzhechitskiy Anton Gurkov Nadezhda Bolbat Ekaterina Shchapova Anna Nazarova Maxim Timofeyev Ekaterina Borvinskaya Adipose Fin as a Natural “Optical Window” for Implantation of Fluorescent Sensors into Salmonid Fish Animals implantable sensors optical sensors rainbow trout skin transparency tissue pH |
| title | Adipose Fin as a Natural “Optical Window” for Implantation of Fluorescent Sensors into Salmonid Fish |
| title_full | Adipose Fin as a Natural “Optical Window” for Implantation of Fluorescent Sensors into Salmonid Fish |
| title_fullStr | Adipose Fin as a Natural “Optical Window” for Implantation of Fluorescent Sensors into Salmonid Fish |
| title_full_unstemmed | Adipose Fin as a Natural “Optical Window” for Implantation of Fluorescent Sensors into Salmonid Fish |
| title_short | Adipose Fin as a Natural “Optical Window” for Implantation of Fluorescent Sensors into Salmonid Fish |
| title_sort | adipose fin as a natural optical window for implantation of fluorescent sensors into salmonid fish |
| topic | implantable sensors optical sensors rainbow trout skin transparency tissue pH |
| url | https://www.mdpi.com/2076-2615/12/21/3042 |
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