Method for controlled tissue theranostics using a single tunable laser source
| Autor: | Jaka Petelin, Rok Podlipec, Jaka Mur, Rok Petkovšek, Janez Štrancar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
theranostics
Materials science tkivo mrežnice multimodal imaging Article law.invention chemistry.chemical_compound udc:535 law Fiber laser medicine prilagodljivi vlakenski laserji adaptable fiber lasers Retinal pigment epithelium Tissue ablation business.industry Retinal teranostika multimodalno slikanje Laser Atomic and Molecular Physics and Optics fluorescence lifetime imaging Autofluorescence medicine.anatomical_structure chemistry življenjski čas fluorescence Personalized medicine retinal tissue business Tunable laser Biotechnology Biomedical engineering |
| Zdroj: | Biomedical Optics Express 12(2021)9, 5881-5893 Biomed Opt Express Biomedical optics express, vol. 12, no. 9, 428467, pp. 5881-5893, 2021. |
| ISSN: | 2156-7085 |
| Popis: | Tissue diseases and related disorders need to be first recognized using diagnostic methods and then later treated by therapeutic methods–a joint procedure called theranostics. One of the main challenges in the field of retinal therapies remains in the success of the treatment, typically improving the local metabolism, by sparing the surrounding tissue and with the immediate information of the laser effect. In our study, we present a concept for real-time controlled tissue theranostics on a proof-of-concept study capable of using a single tunable ps laser source (in terms of irradiance, fluence, and repetition rate), done on ex-vivo human retinal pigment epithelium. We have found autofluorescence intensity and lifetime imaging diagnostics very promising for the recognition and quantification of laser effects ranging from selective non-destructive molecular tissue modification to complete tissue ablation. The main novelty of our work presents the developed algorithm for optimized theranostics based on the model function used to quantify laser-induced tissue changes through the diagnostics descriptors, fluorescence lifetime and fluorescence intensity parameters. This approach, together with the operation of the single adaptable laser source, can serve as a new theranostics method in personalized medicine in the future not only limited to treat retinal diseases. |
| Databáze: | OpenAIRE |
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