The UV filtering potential of drop-casted layers of frustules of three diatom species

Yanyan Su*, Torben Anker Lenau, Emil Gundersen, Jacob J. K. Kirkensgaard, Christian Maibohm, Jerome Pierre Alexandre Pinti, Marianne Ellegaard

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

277 Downloads (Pure)

Abstract

Diatoms are in focus as biological materials for a range of photonic applications. Many of theseapplications would require embedding a multitude of diatoms in a matrix (e.g. paint, crème or lacquer); however, most studies on the photonic and spectral properties of diatoms frustules (silica walls) havebeen carried out on single cells. In this study, for the first time, we test the spectral properties of layersof frustules of three diatom species (Coscinodiscus granii, Thalassiosira punctifera and Thalassiosira pseudonana), with special focus on transmission and reflectance in the UV range. The transmittance efficiency in the UV A and B range was: T. pseudonana (56–59%) >C. granii (53–54%) >T. punctifera (18–21%) for the rinsed frustules. To investigate the underlying cause of these differences, we performed X-ray scattering analysis, measurement of layer thickness and microscopic determination of frustule nanostructures. We further tested dried intact cells in the same experimental setup. Based on the sedata we discuss the relative importance of crystal structure properties, nanostructure and quantity of material on the spectral properties of diatom layers. Characterization of the UV protection performance of layers of diatom frustules is of central relevance for their potential use as innovative bio-based UV filters.
Original languageEnglish
Article number959
JournalScientific Reports
Volume8
Number of pages10
ISSN2045-2322
DOIs
Publication statusPublished - 2018

Cite this

Su, Yanyan ; Lenau, Torben Anker ; Gundersen, Emil ; Kirkensgaard, Jacob J. K. ; Maibohm, Christian ; Pinti, Jerome Pierre Alexandre ; Ellegaard, Marianne. / The UV filtering potential of drop-casted layers of frustules of three diatom species. In: Scientific Reports. 2018 ; Vol. 8.
@article{7437d39aa9304239be04eb4f8c63b8cc,
title = "The UV filtering potential of drop-casted layers of frustules of three diatom species",
abstract = "Diatoms are in focus as biological materials for a range of photonic applications. Many of theseapplications would require embedding a multitude of diatoms in a matrix (e.g. paint, cr{\`e}me or lacquer); however, most studies on the photonic and spectral properties of diatoms frustules (silica walls) havebeen carried out on single cells. In this study, for the first time, we test the spectral properties of layersof frustules of three diatom species (Coscinodiscus granii, Thalassiosira punctifera and Thalassiosira pseudonana), with special focus on transmission and reflectance in the UV range. The transmittance efficiency in the UV A and B range was: T. pseudonana (56–59{\%}) >C. granii (53–54{\%}) >T. punctifera (18–21{\%}) for the rinsed frustules. To investigate the underlying cause of these differences, we performed X-ray scattering analysis, measurement of layer thickness and microscopic determination of frustule nanostructures. We further tested dried intact cells in the same experimental setup. Based on the sedata we discuss the relative importance of crystal structure properties, nanostructure and quantity of material on the spectral properties of diatom layers. Characterization of the UV protection performance of layers of diatom frustules is of central relevance for their potential use as innovative bio-based UV filters.",
author = "Yanyan Su and Lenau, {Torben Anker} and Emil Gundersen and Kirkensgaard, {Jacob J. K.} and Christian Maibohm and Pinti, {Jerome Pierre Alexandre} and Marianne Ellegaard",
year = "2018",
doi = "10.1038/s41598-018-19596-4",
language = "English",
volume = "8",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

The UV filtering potential of drop-casted layers of frustules of three diatom species. / Su, Yanyan; Lenau, Torben Anker; Gundersen, Emil ; Kirkensgaard, Jacob J. K.; Maibohm, Christian ; Pinti, Jerome Pierre Alexandre; Ellegaard, Marianne.

In: Scientific Reports, Vol. 8, 959, 2018.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - The UV filtering potential of drop-casted layers of frustules of three diatom species

AU - Su, Yanyan

AU - Lenau, Torben Anker

AU - Gundersen, Emil

AU - Kirkensgaard, Jacob J. K.

AU - Maibohm, Christian

AU - Pinti, Jerome Pierre Alexandre

AU - Ellegaard, Marianne

PY - 2018

Y1 - 2018

N2 - Diatoms are in focus as biological materials for a range of photonic applications. Many of theseapplications would require embedding a multitude of diatoms in a matrix (e.g. paint, crème or lacquer); however, most studies on the photonic and spectral properties of diatoms frustules (silica walls) havebeen carried out on single cells. In this study, for the first time, we test the spectral properties of layersof frustules of three diatom species (Coscinodiscus granii, Thalassiosira punctifera and Thalassiosira pseudonana), with special focus on transmission and reflectance in the UV range. The transmittance efficiency in the UV A and B range was: T. pseudonana (56–59%) >C. granii (53–54%) >T. punctifera (18–21%) for the rinsed frustules. To investigate the underlying cause of these differences, we performed X-ray scattering analysis, measurement of layer thickness and microscopic determination of frustule nanostructures. We further tested dried intact cells in the same experimental setup. Based on the sedata we discuss the relative importance of crystal structure properties, nanostructure and quantity of material on the spectral properties of diatom layers. Characterization of the UV protection performance of layers of diatom frustules is of central relevance for their potential use as innovative bio-based UV filters.

AB - Diatoms are in focus as biological materials for a range of photonic applications. Many of theseapplications would require embedding a multitude of diatoms in a matrix (e.g. paint, crème or lacquer); however, most studies on the photonic and spectral properties of diatoms frustules (silica walls) havebeen carried out on single cells. In this study, for the first time, we test the spectral properties of layersof frustules of three diatom species (Coscinodiscus granii, Thalassiosira punctifera and Thalassiosira pseudonana), with special focus on transmission and reflectance in the UV range. The transmittance efficiency in the UV A and B range was: T. pseudonana (56–59%) >C. granii (53–54%) >T. punctifera (18–21%) for the rinsed frustules. To investigate the underlying cause of these differences, we performed X-ray scattering analysis, measurement of layer thickness and microscopic determination of frustule nanostructures. We further tested dried intact cells in the same experimental setup. Based on the sedata we discuss the relative importance of crystal structure properties, nanostructure and quantity of material on the spectral properties of diatom layers. Characterization of the UV protection performance of layers of diatom frustules is of central relevance for their potential use as innovative bio-based UV filters.

U2 - 10.1038/s41598-018-19596-4

DO - 10.1038/s41598-018-19596-4

M3 - Journal article

C2 - 29343724

VL - 8

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 959

ER -