Light transmission of the marine diatom Coscinodiscus wailesii

Hsu, Shun-Chieh; Paoletti, C; Torres, M. J. Gonzalez; Ritchie, Raymond J.; Larkum, Anthony W. D.; Grillet, Christian

doi:10.1117/12.915044

Cited by 12 publications

(6 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As most studies aimed at characterizing the photonic properties of diatom frustules and elucidating their industrial potential are done on rinsed frustules, the organic material in the cell content is taken into account in neither measurements nor simulations. Further, most of these studies are performed or simulated in air, contrary to the aquatic natural habitat of the diatoms (although there are exceptions, e.g., De Tommasi et al 2010;Di Caprio et al 2014;Hsu et al 2012;LeDuff et al 2016). Therefore, the calculated effects of these experiments and simulations apply to the frustule, and for use in applications of rinsed frustules, but cannot give full biological answers as to how the living diatoms benefit by the interactions between the frustule and light.…”

Section: Photonic Experimentsmentioning

confidence: 94%

The fascinating diatom frustule—can it play a role for attenuation of UV radiation?

et al. 2016

View full text Add to dashboard Cite

Diatoms are ubiquitous organisms in aquatic environments and are estimated to be responsible for 20-25 % of the total global primary production. A unique feature of diatoms is the silica wall, called the frustule. The frustule is characterized by species-specific intricate nanopatterning in the same size range as wavelengths of visible and ultraviolet (UV) light. This has prompted research into the possible role of the frustule in mediating light for the diatoms' photosynthesis as well as into possible photonic applications of the diatom frustule. One of the possible biological roles, as well as area of potential application, is UV protection. In this review, we explore the possible adaptive value of the silica frustule with focus on research on the effect of UV radiation on diatoms. We also explore the possible effect of the frustules on UV radiation, from a theoretical, biological, and applied perspective, including recent experimental data on UV transmission of diatom frustules.

show abstract

Section: Photonic Experimentsmentioning

confidence: 94%

The fascinating diatom frustule—can it play a role for attenuation of UV radiation?

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Since diatoms interact with sunlight, the confinement of optical radiation transmitted by a single valve and its dependence by wavelength have been studied also starting from incoherent sources, for example, for C. wailesii [32][33][34], C. centralis [35], and Arachnoidiscus sp. valves [36].…”

Section: Light Collection and Confinement By A Single Diatom Valvementioning

confidence: 99%

Light Manipulation by Single Cells: The Case of Diatoms

Tommasi¹

2016

Journal of Spectroscopy

View full text Add to dashboard Cite

Diatoms are ubiquitous monocellular microalgae, responsible for about 20–25% of the global oxygen produced by photosynthesis. Living in environments where sunlight is not so easily accessible, evolution shaped diatoms in order to exploit light with high efficiency. In particular, diatoms are provided with an external, micro- and nanopatterned silica shell, the frustule, surprisingly similar to artificial photonic crystals and able to manipulate light in many different ways. The present paper reviews the most relevant studies on optical and photonic properties of diatoms that have been performed throughout the last years making use of SEM characterizations, transmittance measurements at different wavelengths, holographic microscopy, Raman spectroscopy and imaging, photoluminescence spectroscopy, and the predictive support of different numerical simulation algorithms.

show abstract

“…Alternatively, light can be transmitted through the valve with diffraction from the foramen (holes) as the important effect. We are interested in developing a simple description of the multiple interference points described in simulations at a distance corresponding to outside the frustule when light interacts with the valve of the centric species Coscinodiscus granii (C. granii) [10,[12][13][14][15]. These interference points have been discussed on a theoretical basis and a few have been showed experimentally [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%