Abstract:
We explore the electromagnetic response of the pellicle of selected species of euglenoids. These microorganisms are bounded by a typical surface pellicle formed by S-shaped overlapping bands that resemble a corrugated film. We investigate the role played by this structure in the protection of the cell against UV radiation. By considering the pellicle as a periodically corrugated film of finite thickness, we applied the C-method to compute the reflectance spectra. The far-field results revealed reflectance peaks with a Q-factor larger than 103 in the UV region for all the illumination conditions investigated. The resonant behavior responsible for this enhancement has also been illustrated by near-field computations performed by a photonic simulation method. These results confirm that the corrugated pellicle of euglenoids shields the cell from harmful UV radiation and open up new possibilities for the design of highly UV-reflective surfaces. © 2017 Optical Society of America.
Registro:
Documento: |
Artículo
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Título: | Optical function of the finite-thickness corrugated pellicle of euglenoids |
Autor: | Inchaussandague, M.E.; Skigin, D.C.; Dolinko, A.E. |
Filiación: | Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Grupo de Electromagnetismo Aplicado, Buenos Aires, Argentina CONICET-Universidad de Buenos Aires, Instituto de Física de Buenos Aires (IFIBA), Buenos Aires, Argentina Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Laboratorio de Micología, Buenos Aires, Argentina CONICET-Universidad de Buenos Aires, Instituto de Micología y Botánica (INMIBO), Buenos Aires, Argentina
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Palabras clave: | Algae; Radiation protection; Reflection; Ultraviolet radiation; Corrugated films; Electromagnetic response; Illumination conditions; Overlapping bands; Reflectance peaks; Reflectance spectrum; Reflective surfaces; Resonant behavior; Protozoa; electromagnetic radiation; Euglena gracilis; Euglenida; radiation response; transmission electron microscopy; ultrastructure; Electromagnetic Radiation; Euglena gracilis; Euglenida; Microscopy, Electron, Transmission |
Año: | 2017
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Volumen: | 56
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Número: | 18
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Página de inicio: | 5112
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Página de fin: | 5120
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DOI: |
http://dx.doi.org/10.1364/AO.56.005112 |
Título revista: | Applied Optics
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Título revista abreviado: | Appl. Opt.
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ISSN: | 1559128X
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CODEN: | APOPA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1559128X_v56_n18_p5112_Inchaussandague |
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Citas:
---------- APA ----------
Inchaussandague, M.E., Skigin, D.C. & Dolinko, A.E.
(2017)
. Optical function of the finite-thickness corrugated pellicle of euglenoids. Applied Optics, 56(18), 5112-5120.
http://dx.doi.org/10.1364/AO.56.005112---------- CHICAGO ----------
Inchaussandague, M.E., Skigin, D.C., Dolinko, A.E.
"Optical function of the finite-thickness corrugated pellicle of euglenoids"
. Applied Optics 56, no. 18
(2017) : 5112-5120.
http://dx.doi.org/10.1364/AO.56.005112---------- MLA ----------
Inchaussandague, M.E., Skigin, D.C., Dolinko, A.E.
"Optical function of the finite-thickness corrugated pellicle of euglenoids"
. Applied Optics, vol. 56, no. 18, 2017, pp. 5112-5120.
http://dx.doi.org/10.1364/AO.56.005112---------- VANCOUVER ----------
Inchaussandague, M.E., Skigin, D.C., Dolinko, A.E. Optical function of the finite-thickness corrugated pellicle of euglenoids. Appl. Opt. 2017;56(18):5112-5120.
http://dx.doi.org/10.1364/AO.56.005112