Naslov
Impact of sodium selenite and selenium nanoparticles on freshwater and marine microalgae based on algal growth rate and chlorophyll A content

Autori
Galić, Maja ; Babić, Sanja ; Selmani, Atiđa ; Bojanić, Krunoslav ; Dutour Sikirić, Maja ; Topić Popović, Natalija ; Strunjak-Perović, Ivančica ; Čož-Rakovac, Rozelinda ;

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of the PhD Candidate Symposium 2018 / Roland, Ludwig - Beč : The University of Natural Resources and Life Sciences, Vienna (BOKU), 2018, 39-39

Skup
PhD Candidate Symposium 2018

Mjesto i datum
Beč, Austrija, 23.10.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Dunaliella tertiolecta ; Chlorella vulgaris ; selenium nanoparticles ; sodium selenite ; chlorophyll ; toxicity

Sažetak
Selenium (Se) is a micronutrient metabolically required by a variety of organisms, including microalgae and bacteria. Chlorophyta (green algae) is a large group of aquatic photosynthetic organisms and about half of the global microalgal production corresponds to green microalgae (Chlorella and Dunaliella) species. The range of Se concentrations within Se uptake goes from insufficient to toxic is very narrow. Se toxicity depends on its chemical structure and concentration and it is species- and dose- dependent in the case of microalgae. Recently, instead of sodium selenite (inorganic Se form), selenium nanoparticles (SeNPs) have obtained the attention as a possible Se source because of its lower toxicity. With the aim to determine safety of their use in cosmetic, food and pharmaceutical industry, the influence of SeNPs on growth and chlorophyll a content of freshwater microalgae Chlorella vulgaris and marine microalgae Dunaliella tertiolecta was compared with the influence of sodium selenite. Within this study, SeNPs were synthesized by solution phase synthesis and characterized using powder X-ray diffraction to examine SeNPs composition and phase. The hydrodynamic diameter and zeta potential of SeNPs were determined by dynamic and electrophoretic light scattering. These results provide a better understanding of the effect of SeNPs on green microalgae and their biotechnological potential, which may help in the development of new technological applications considering that nanotechnology becomes a promising tool in many fields of research such as pharmacy, environmental, information technology and engineering, chemical industries, and others.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Biotehnologija, Biotehnologija u biomedicini (prirodno područje, biomedicina i zdravstvo, biotehničko područje)

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