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- Title
The Upcoming 6 Li Isotope Requirements Might Be Supplied by a Microalgal Enrichment Process.
- Authors
Díaz-Alejo, Héctor M.; López-Rodas, Victoria; García-Balboa, Camino; Tarín, Francisco; Barrado, Ana I.; Conde, Estefanía; Costas, Eduardo
- Abstract
Lithium isotopes are essential for nuclear energy, but new enrichment methods are required. In this study, we considered biotechnology as a possibility. We assessed the Li fractionation capabilities of three Chlorophyte strains: Chlamydomonas reinhardtii, Tetraselmis mediterranea, and a freshwater Chlorophyte, Desmodesmus sp. These species were cultured in Li containing media and were analysed just after inoculation and after 3, 12, and 27 days. Li mass was determined using a Inductively Coupled Plasma Mass Spectrometer, and the isotope compositions were measured on a Thermo Element XR Inductively Coupled Plasma Mass Spectrometer. The maximum Li capture was observed at day 27 with C. reinhardtii (31.66 µg/g). Desmodesmus sp. reached the greatest Li fractionation, (δ6 = 85.4‰). All strains fractionated preferentially towards 6Li. More studies are required to find fitter species and to establish the optimal conditions for Li capture and fractionation. Nevertheless, this is the first step for a microalgal nuclear biotechnology.
- Subjects
CHLAMYDOMONAS; LITHIUM isotopes; ISOTOPES; CHLAMYDOMONAS reinhardtii; MASS spectrometers; NUCLEAR energy
- Publication
Microorganisms, 2021, Vol 9, Issue 8, p1753
- ISSN
2076-2607
- Publication type
Article
- DOI
10.3390/microorganisms9081753