FLNP JINR researchers evaluated effect of rare-earth metals on cyanobacteria
The date of:
2024-09-23
viewed:
0
source:Joint Institute for Nuclear Research
Scientists of the Laboratory of Neutron Physics at JINR in collaboration with colleagues from the Technical University of Moldova и Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (Romania) evaluated the accumulation of holmium(III), erbium(III), and gadolinium(III) accumulation by cyanobacteria Arthrospira platensis using neutron activation analysis and elements’ effects on biomass quantity and biochemical composition. The studied elements had different effects on the primary biomolecule content, suggesting that holmium(III) and erbium(III) were more toxic than gadolinium(III) for Arthrospira platensis.Rare-earth elements are released into the aquatic environment as a result of their extensive use in industry and agriculture, and they can be harmful for living organisms. The effects of holmium(III), erbium(III), and gadolinium(III) when added to a growth medium in concentrations ranging from 10 to 30 mg/L on the accumulation ability and biochemical composition of Arthrospira platensis were studied.According to the results of a neutron activation analysis, the uptake of elements by cyanobacteria occurred in a dose-dependent manner. The addition of gadolinium(III) to the growth medium did not significantly affect the amount of biomass, whereas erbium(III) and holmium(III) reduced it up to 22% compared to the control. The effects of rare-earth elements on the content of proteins, carbohydrates, phycobiliproteins, lipids, β carotene, and chlorophyll a were evaluated.Microorganisms published an article about this study in 2024. Among the authors are employees of the FLNP JINR: head of the Neutron Activation Analysis and Applied Research Sector Inga Zinicovscaia and head of the Gamma Spectrometry Group Dmitrii Grozdov.
Hot News
/
Related to recommend
2024
-
09
-
23
Click on the number of times:
0
source:Joint Institute for Nuclear ResearchScientists of the Laboratory of Neutron Physics at JINR in collaboration with colleagues from the Technical University of Moldova и Horia Hulubei National In...
2024
-
09
-
20
Click on the number of times:
0
source:SMALL CAPSRareX (ASX: REE) has identified a significant new heavy rare earths (HRE) opportunity following a desktop study of historical data from its Mt Mansbridge tenement package in Western A...
2024
-
09
-
19
Click on the number of times:
0
source:TOHOKU UNIVERSITYA group of researchers has achieved significant progress in developing cost-effective catalysts for the oxygen evolution reaction (OER), a critical component in technologies li...
2024
-
09
-
18
Click on the number of times:
0
source:TechxploreAs the world transitions away from fossil fuels, the demand for rare earth elements (REEs) is only going to increase. These elements are vital to the production of technologies that w...