Research output per year
Research output per year
Personal profile
Expertise
My interest is the Ocean’s cycling of trace element mercury, and in particular, which factors and conditions drive the microbes to produce its most toxic organic form, the monomethylmercury. This needs an interdisciplinary approach; combining passive and active sampling techniques, methods of analytical chemistry, understanding the structure of microbial community and their metabolism; all of these wrapped in the physico-chemical realm of the ocean.
As mercury’s cycle is intimately connected with carbon cycling, redox state and oxygen concentration in the seawater, the variations in these will likely be reflected in the cycling of mercury. In the globally changing Ocean, the fate of mercury is unclear and it’s both challenging and important to understand the pathways of its biogeochemical transformations in order to avoid or mitigate the possible adverse effect.
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Collaborations and top research areas from the last five years
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Research output
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Advances in understanding mobilization processes of trace metals in marine sediments
Zhou, C., Gao, Y., Gaulier, C., Luo, M., Zhang, X., Bratkic, A., Davison, W. & Baeyens, W., 1 Dec 2020, In: Environmental Science and Technology. 54, 23, p. 15151-15161 11 p.Research output: Contribution to journal › Article › peer-review
14 Citations (Scopus) -
Determination of Dissolved Iron Redox Species in Freshwater Sediment using DGT Technique Coupled to BDS
Gao, Y. & Bratkic, A., 2019, In: Acta Chim. Slov.. 66, 1, p. 239-246 8 p.Research output: Contribution to journal › Article › peer-review
Open Access4 Citations (Scopus) -
Developing DGT technique for determination of iron redox species by photothermal beam spectrometry
Budasheva, H., Bratkic, A., Zhou, C., Korte, D., Gao, Y., Franko, M. & Delille, B., 18 Sep 2019.Research output: Unpublished contribution to conference › Poster
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Effect of bead size in Chelex-based resin hydrogels in DGT on detection of Fe redox species by beam deflection spectroscopy
Budasheva, H., Bratkic, A., Korte, D. & Franko, M., 18 Sep 2019.Research output: Unpublished contribution to conference › Poster
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Investigating Hg species bioavailability in the mine-impacted Gulf of Trieste (Northern Adriatic)
Bratkic, A., Gao, Y., Leermakers, M. & Klun, K., 11 Sep 2019, p. 164. 1 p.Research output: Unpublished contribution to conference › Poster
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Mercury methylation and reduction in marine systems using the high specific activity radiotracer 197Hg
Arne Bratkic (Speaker), Neža Koron (Contributor), Milena Horvat (Contributor), Sergio Ribeiro Guevara (Contributor) & Mitja Vahčič (Contributor)
13 Sep 2019Activity: Talk or presentation › Talk or presentation at a conference
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Advancing methodology for sub-zero temperature application of DGT technique on sea ice samples for two-dimensional imaging of biogenic metals
Arne Bratkic (Speaker), Chunyang Zhou (Contributor), Jean-Louis Tison (Contributor), François Fripiat (Contributor), Yue Gao (Contributor) & Bruno Delille (Contributor)
18 Sep 2019Activity: Talk or presentation › Talk or presentation at a conference
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Urban biogeochemistry of labile Hg by diffusive gradients in thin-films technique in anthropogenically-impacted freshwater environment (Zenne River, Brussels)
Arne Bratkic (Speaker) & Yue Gao (Contributor)
12 Sep 2019Activity: Talk or presentation › Talk or presentation at a conference
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Advancing methodology for sub-zero temperature application of DGT technique on sea ice samples for two-dimensional imaging of biogenic metals
Arne Bratkic (Speaker), Chunyang Zhou (Contributor), Yue Gao (Contributor), Jean Louis Tison (Contributor), François Fripiat (Speaker) & Bruno Delille (Contributor)
18 Sep 2019Activity: Talk or presentation › Talk or presentation at a conference
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Contrasting effects of probable nitrogen limitation and its absence on mercury speciation in the south Atlantic ocean as indicators of microbial mercury transformations
Igor Živković (Speaker), Arne Bratkic (Contributor), Milena Horvat (Contributor), Malcolm Woodward (Contributor), Matthew Humphreys (Contributor), Mladen Šolić (Contributor) & Natalia Bojanić (Contributor)
12 Sep 2019Activity: Talk or presentation › Talk or presentation at a conference