UV protection of Euglenoids: Computation of the electromagnetic response

Dolinko, A.; Valencia, C.; Skigin, D.C.; Inchaussandague, M.E.; Tolivia, A.; Conforti, V.; Svanberg K.; Kurachi C.; Bagnato V.S.; Tromberg B.J.; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; International Photodynamic Association; The Sao Paulo Research Foundation (FAPESP); The Society of Photo-Optical Instrumentation Engineers (SPIE)

doi:10.1117/12.2180935

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Dolinko, A.; Valencia, C.; Skigin, D.C.; Inchaussandague, M.E.; Tolivia, A.; Conforti, V.; Svanberg K.; Kurachi C.; Bagnato V.S.; Tromberg B.J.; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; International Photodynamic Association; The Sao Paulo Research Foundation (FAPESP); The Society of Photo-Optical Instrumentation Engineers (SPIE) "UV protection of Euglenoids: Computation of the electromagnetic response" (2015) Biophotonics South America. 9531

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Abstract:

Euglenoids are a group of predominantly free-living unicellular microorganisms that mostly live in freshwater bodies but can also be found in marine and brackish waters. These organisms have a characteristic that distinguishes them form the other protists: they are covered by a surface pellicle formed by S-shaped overlapping bands which resemble a diffraction grating. These microorganisms have developed numerous protection mechanisms intended to avoid or reduce the damage produced by UV radiation, such as the production of pigments and the repair mechanisms in hours of darkness and during daylight. In a recent paper we have investigated the role played by the pellicle of Euglenoids in the protection of the cell against UV radiation, by means of an electromagnetic approach based on the approximation of the pellicle profile by a one-dimensional diffraction grating. This simplified model allowed us to confirm that under certain incidence conditions, the corrugation of the pellicle helps increase the UV reflection, and consequently, diminish the UV radiation that enters the cell. In order to analyze the electromagnetic response of the whole cell, we extend two different approaches to calculate the reflected response: a simulation method especially developed to deal with complex biological structures that permits the introduction of the scattering object via an electron microscopy image, and the integral method, which has been widely used to compute the electromagnetic response of finite structures. Numerical results of near and far fields are shown. © 2015 Copyright SPIE.

Registro:

Documento:	Conferencia
Título:	UV protection of Euglenoids: Computation of the electromagnetic response
Autor:	Dolinko, A.; Valencia, C.; Skigin, D.C.; Inchaussandague, M.E.; Tolivia, A.; Conforti, V.; Svanberg K.; Kurachi C.; Bagnato V.S.; Tromberg B.J.; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; International Photodynamic Association; The Sao Paulo Research Foundation (FAPESP); The Society of Photo-Optical Instrumentation Engineers (SPIE)
Filiación:	Departamento de Biodiversidad y Biología Experimental, FCEN, Universidad de Buenos Aires, Buenos Aires, C1428EHA, Argentina Facultad de Ciencias, Universidad Autónoma de Baja California, Km. 107 Carretera Tijuana-Ensenada, Ensenada, Baja California 22860, Mexico Grupo de Electromagnetismo Aplicado, Departamento de Física, Universidad de Buenos Aires, Buenos Aires, C1428EHA, Argentina IFIBA-CONICET, Pabellón I, Ciudad Universitaria, Buenos Aires, C1428EHA, Argentina Laboratorio de Biología Comparada de Protistas, Departamento de Biodiversidad y Biología Experimental, Universidad de Buenos Aires, Buenos Aires, C1428EHA, Argentina IBBEA-CONICET, Pabellón II, Ciudad Universitaria, Buenos Aires, C1428EHA, Argentina
Palabras clave:	microalgae; natural photonic structures; photonic simulation method; UV protection; Algae; Bioinformatics; Diffraction; Diffraction gratings; Microbiology; Microorganisms; Photonics; Protozoa; Ultraviolet radiation; Biological structures; Electromagnetic response; Electron microscopy images; Micro-algae; Photonic structure; Protection mechanisms; Unicellular microorganisms; UV protection; Radiation protection
Año:	2015
Volumen:	9531
DOI:	http://dx.doi.org/10.1117/12.2180935
Título revista:	Biophotonics South America
Título revista abreviado:	Progr. Biomed. Opt. Imaging Proc. SPIE
ISSN:	16057422
Registro:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16057422_v9531_n_p_Dolinko

Referencias:

Parker, A., 515 Million years of structural colour (2000) J. Opt. A, Pure Appl. Opt, 2, pp. R15-R28
Srinivasarao, M., Nano-optics in the biological world: Beetles, butterflies, birds, and moths (1999) Chem. Rev., 99, pp. 1935-1961
Vukusic, P., Sambles, J.R., Photonic structures in biology (2003) Nature, 424, pp. 852-855
Kinoshita, S., (2008) Structural Colors in the Realm of Nature, , World Scientific Publishing Co., Singapore
Berthier, S., (2007) Iridescences, the Physical Colours of Insects, , Springer Science+Business Media, LLC, France
Vigneron, J.-P., Rassart, M., Vértesy, Z., Kertész, K., Sarrazin, M., Biro, L.P., Ertz, D., Lousse, V., Optical structure and function of the white filamentary hair covering the edelweiss bracts (2005) Phys. Rev. E, 71
Kertész, K., Bálint, Z., Vértesy, Z., Márk, G.I., Lousse, V., Vigneron, J.-P., Biro, L.P., Photonic crystal type structures of biological origin: Structural and spectral characterization (2006) Current Applied Physics, 6, pp. 252-258
Skerratt, J.H., Davidson, A.D., Nichols, P.D., McMeekin, T.A., Effect of UV-B on lipid content of three Antarctic marine phytoplankton (1998) Phytochemistry, 49, pp. 999-1007
Bischof, K., Hanelt, D., Wiencke, C., Effects of ultraviolet radiation on photosynthesis and related enzyme reactions of marine macroalgae (2000) Planta, 211, pp. 555-562
Jokiel, P.L., York, R.H., Jr., Importance of ultraviolet radiation in photoinhibition of microalgal growth (1984) Limnol. Oceanogr., 29, pp. 192-199
Franklin, L., Forster, R., The changing irradiance environment: Consequences for marine macrophyte physiology, productivity and ecology (1997) European Journal of Phycology, 32, pp. 207-232
Ekelund, G.A., Interactions between photosynthesis and light-enhanced dark respiration(LEDR) in the flagellate Euglena gracilis after irradiation with ultraviolet radiation (2000) Journal of Photochemistry and Photobiology B: Biology, 55, pp. 63-69
Karentz, D., McEuen, F.S., Land, M.C., Dunlap, W.C., Survey of mycosporine-like amino acid compounds in Antarctic marine organisms: Potential protection from ultraviolet exposure (1991) Marine Biology, 108, pp. 157-166
Inchaussandague, M.E., Skigin, D.C., Tolivia, A., Fuertes Vila, I., Conforti, V., Electromagnetic response of the protective pellicle of different unicellular microalgae (2014) Proc. of SPIE, 9055. , Bioinspiration, Biomimetics, and Bioreplication 2014
Inchaussandague, M.E., Gigli, M.L., Skigin, D.C., Tolivia, A., Conforti, V., Electromagnetic response of the protective pellicle of Euglenoids: Influence of the surface profile (2015) Proc. of SPIE, 9429. , Bioinspiration, Biomimetics, and Bioreplication 2015
Dolinko, A.E., Skigin, D.C., Enhanced method for determining the optical response of highly complex biological photonic structures (2013) J. Opt. Soc. Am. A, 30, pp. 1746-1759
Valencia, C.I., Méndez, E.R., Mendoza, B.S., Second harmonic generation in the scattering of light by two-dimensional particles (2003) J. Opt. Soc. Am. B, 20, pp. 2150-2161
Bohren, C.F., Huffman, D.R., (2008) Absorption and Scattering of Light by Small Particles, , Wiley, New York
Dolinko, A.E., From Newton's second law to Huygens's principle: Visualizing waves in a large array of masses joined by springs (2009) Eur. J. Phys., 30, pp. 1217-1228A4 - Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; International Photodynamic Association; The Sao Paulo Research Foundation (FAPESP); The Society of Photo-Optical Instrumentation Engineers (SPIE)

Citas:

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Dolinko, A., Valencia, C., Skigin, D.C., Inchaussandague, M.E., Tolivia, A., Conforti, V., Svanberg K.,..., Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; International Photodynamic Association; The Sao Paulo Research Foundation (FAPESP); The Society of Photo-Optical Instrumentation Engineers (SPIE) (2015) . UV protection of Euglenoids: Computation of the electromagnetic response. Biophotonics South America, 9531.
http://dx.doi.org/10.1117/12.2180935

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Dolinko, A., Valencia, C., Skigin, D.C., Inchaussandague, M.E., Tolivia, A., Conforti, V., et al. "UV protection of Euglenoids: Computation of the electromagnetic response" . Biophotonics South America 9531 (2015).
http://dx.doi.org/10.1117/12.2180935

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---------- VANCOUVER ----------

Dolinko, A., Valencia, C., Skigin, D.C., Inchaussandague, M.E., Tolivia, A., Conforti, V., et al. UV protection of Euglenoids: Computation of the electromagnetic response. Progr. Biomed. Opt. Imaging Proc. SPIE. 2015;9531.
http://dx.doi.org/10.1117/12.2180935