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Integration of TiO2 into the diatom Thalassiosira weissflogii during frustule synthesis
Date Issued
2013-11-13
Date Available
2013-11-29T10:14:08Z
Abstract
Nature has inspired the design of complex hierarchical structures in the field of material
science. Diatoms, unicellular algae with a hallmark intricate siliceous cell wall, have provided such a stimulus. Altering the chemistry of the diatom frustule has been explored to expand on the potential application of diatoms. The ability to modify the diatom in vivo opens the possibility to tailor the diatom to the end application. Herein, we report the chemical modification of the living diatom T. weissflogii using a titania precursor, titanium (IV) bis-(ammonium lactato)-dihydroxide (TiBALDH). Incorporation of Ti into the diatom is achieved via repeated treatment of cultures with non-toxic concentrations of TiBALDH. The characteristic architectural features of the diatom are unaltered following chemical modification. Transformation of the living diatom provides opportunity to confer novel structural, chemical or functional properties upon the diatom. We report on a photocatalytic ability imparted upon the TiBALDH-modified diatom.
Sponsorship
Science Foundation Ireland
Other Sponsorship
Science Foundation Ireland (grant no. 07/IN1/B931).
Type of Material
Journal Article
Publisher
Nature Publishing Group
Journal
Scientific Reports
Volume
3
Start Page
3205
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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43
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