TY  - JOUR
AU  - Marković, Marijana
AU  - Anđelković, Ivan
AU  - Shuster, Jeremiah
AU  - Janik, Leslie
AU  - Kumar, Anupama
AU  - Lošić, Dušan
AU  - McLaughlin, Michael J.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3346
AB  - The graphene oxide (GO) due to its exceptional structure, physicochemical and mechanical properties is a very attractive material for industry application. Even though, the unique properties of GO (e.g. structure, size, shape, etc.) make the risk assessment of this nanomaterial very challenging in comparison with conventional ecotoxicology studies required by regulators. Thus, there is a need for standardized characterization techniques and methodology to secure a high quality/reliable data on the ecotoxicology of GO, and to establish environmentally acceptable levels. Herein, authors address the crucial quality criteria when evaluating the ecotoxicology of GO using an algae (Raphidocelis subcapitata) and a shrimp (Paratya australiensis). This study provides a detail characterization and modification of the used GO, robust quantification and a suspension stability in different media for ecotoxicology studies. It was observed that under the same exposure conditions the behavior of GO and the estimated outcomes (IC50 values) in modified algae media differed in comparison to the referent media. Further to that, the adverse effects of GO on the algae cell structure and the potential uptake of GO by the algae cells were examined using the TEM with different staining techniques to avoid artefacts. Shrimps which were exposed to GO-algae aggregates via the food intake did not indicate stress or accumulation of GO. Our work presents an important insight to necessity of establishing a benchmark ecotoxicology assays for GO (e.g. characterization techniques, choice of media, etc.) and providing a reliable data to be used by regulators in risk assessment of two-dimensional (2D) nanomaterials.
PB  - Elsevier
T2  - Chemosphere
T1  - Addressing challenges in providing a reliable ecotoxicology data for graphene-oxide (GO) using an algae (Raphidocelis subcapitata), and the trophic transfer consequence of GO-algae aggregates
VL  - 245
SP  - 125640
DO  - 10.1016/j.chemosphere.2019.125640
ER  - 

@article{
author = "Marković, Marijana and Anđelković, Ivan and Shuster, Jeremiah and Janik, Leslie and Kumar, Anupama and Lošić, Dušan and McLaughlin, Michael J.",
year = "2020",
abstract = "The graphene oxide (GO) due to its exceptional structure, physicochemical and mechanical properties is a very attractive material for industry application. Even though, the unique properties of GO (e.g. structure, size, shape, etc.) make the risk assessment of this nanomaterial very challenging in comparison with conventional ecotoxicology studies required by regulators. Thus, there is a need for standardized characterization techniques and methodology to secure a high quality/reliable data on the ecotoxicology of GO, and to establish environmentally acceptable levels. Herein, authors address the crucial quality criteria when evaluating the ecotoxicology of GO using an algae (Raphidocelis subcapitata) and a shrimp (Paratya australiensis). This study provides a detail characterization and modification of the used GO, robust quantification and a suspension stability in different media for ecotoxicology studies. It was observed that under the same exposure conditions the behavior of GO and the estimated outcomes (IC50 values) in modified algae media differed in comparison to the referent media. Further to that, the adverse effects of GO on the algae cell structure and the potential uptake of GO by the algae cells were examined using the TEM with different staining techniques to avoid artefacts. Shrimps which were exposed to GO-algae aggregates via the food intake did not indicate stress or accumulation of GO. Our work presents an important insight to necessity of establishing a benchmark ecotoxicology assays for GO (e.g. characterization techniques, choice of media, etc.) and providing a reliable data to be used by regulators in risk assessment of two-dimensional (2D) nanomaterials.",
publisher = "Elsevier",
journal = "Chemosphere",
title = "Addressing challenges in providing a reliable ecotoxicology data for graphene-oxide (GO) using an algae (Raphidocelis subcapitata), and the trophic transfer consequence of GO-algae aggregates",
volume = "245",
pages = "125640",
doi = "10.1016/j.chemosphere.2019.125640"
}

Marković, M., Anđelković, I., Shuster, J., Janik, L., Kumar, A., Lošić, D.,& McLaughlin, M. J.. (2020). Addressing challenges in providing a reliable ecotoxicology data for graphene-oxide (GO) using an algae (Raphidocelis subcapitata), and the trophic transfer consequence of GO-algae aggregates. in Chemosphere
Elsevier., 245, 125640.
https://doi.org/10.1016/j.chemosphere.2019.125640

Marković M, Anđelković I, Shuster J, Janik L, Kumar A, Lošić D, McLaughlin MJ. Addressing challenges in providing a reliable ecotoxicology data for graphene-oxide (GO) using an algae (Raphidocelis subcapitata), and the trophic transfer consequence of GO-algae aggregates. in Chemosphere. 2020;245:125640.
doi:10.1016/j.chemosphere.2019.125640 .

Marković, Marijana, Anđelković, Ivan, Shuster, Jeremiah, Janik, Leslie, Kumar, Anupama, Lošić, Dušan, McLaughlin, Michael J., "Addressing challenges in providing a reliable ecotoxicology data for graphene-oxide (GO) using an algae (Raphidocelis subcapitata), and the trophic transfer consequence of GO-algae aggregates" in Chemosphere, 245 (2020):125640,
https://doi.org/10.1016/j.chemosphere.2019.125640 . .

TY  - JOUR
AU  - Anđelković, Ivan
AU  - Tran, Diana N H
AU  - Kabiri, Shervin
AU  - Azari, Sara
AU  - Marković, Marijana
AU  - Lošić, Dušan
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1640
AB  - Arsenic (As) is the world's most hazardous chemical found in drinking water of many countries; therefore, there is an urgent need for the development of low-cost adsorbents for its removal. Here, we report a highly versatile and synthetic route for the preparation of a three-dimensional (3D) graphene-iron oxide nanoparticle aerogel composite for the efficient removal of As from contaminated water. This unique three-dimensional (3D) interconnected network was prepared from natural graphite rocks with a simple reaction, without the use of harsh chemicals, which combines with the exfoliation of graphene oxide (GO) sheets via the reduction of ferrous ion to form a graphene aerogel composite decorated with iron oxide nanoparticles. The prepared adsorbent showed outstanding absorption performance for the removal of As from contaminated water, because of its high surface-to-volume ratio and characteristic pore network in the 3D architecture. The performed case study using real drinking water contaminated with As under batch conditions showed successful removal of arsenic to the concentration recommended by the World Health Organisation (WHO).
PB  - American Chemical Society (ACS)
T2  - Acs Applied Materials & Interfaces
T1  - Graphene Aerogels Decorated with alpha-FeOOH Nanoparticles for Efficient Adsorption of Arsenic from Contaminated Waters
VL  - 7
IS  - 18
SP  - 9758
EP  - 9766
DO  - 10.1021/acsami.5b01624
ER  - 

@article{
author = "Anđelković, Ivan and Tran, Diana N H and Kabiri, Shervin and Azari, Sara and Marković, Marijana and Lošić, Dušan",
year = "2015",
abstract = "Arsenic (As) is the world's most hazardous chemical found in drinking water of many countries; therefore, there is an urgent need for the development of low-cost adsorbents for its removal. Here, we report a highly versatile and synthetic route for the preparation of a three-dimensional (3D) graphene-iron oxide nanoparticle aerogel composite for the efficient removal of As from contaminated water. This unique three-dimensional (3D) interconnected network was prepared from natural graphite rocks with a simple reaction, without the use of harsh chemicals, which combines with the exfoliation of graphene oxide (GO) sheets via the reduction of ferrous ion to form a graphene aerogel composite decorated with iron oxide nanoparticles. The prepared adsorbent showed outstanding absorption performance for the removal of As from contaminated water, because of its high surface-to-volume ratio and characteristic pore network in the 3D architecture. The performed case study using real drinking water contaminated with As under batch conditions showed successful removal of arsenic to the concentration recommended by the World Health Organisation (WHO).",
publisher = "American Chemical Society (ACS)",
journal = "Acs Applied Materials & Interfaces",
title = "Graphene Aerogels Decorated with alpha-FeOOH Nanoparticles for Efficient Adsorption of Arsenic from Contaminated Waters",
volume = "7",
number = "18",
pages = "9758-9766",
doi = "10.1021/acsami.5b01624"
}

Anđelković, I., Tran, D. N. H., Kabiri, S., Azari, S., Marković, M.,& Lošić, D.. (2015). Graphene Aerogels Decorated with alpha-FeOOH Nanoparticles for Efficient Adsorption of Arsenic from Contaminated Waters. in Acs Applied Materials & Interfaces
American Chemical Society (ACS)., 7(18), 9758-9766.
https://doi.org/10.1021/acsami.5b01624

Anđelković I, Tran DNH, Kabiri S, Azari S, Marković M, Lošić D. Graphene Aerogels Decorated with alpha-FeOOH Nanoparticles for Efficient Adsorption of Arsenic from Contaminated Waters. in Acs Applied Materials & Interfaces. 2015;7(18):9758-9766.
doi:10.1021/acsami.5b01624 .

Anđelković, Ivan, Tran, Diana N H, Kabiri, Shervin, Azari, Sara, Marković, Marijana, Lošić, Dušan, "Graphene Aerogels Decorated with alpha-FeOOH Nanoparticles for Efficient Adsorption of Arsenic from Contaminated Waters" in Acs Applied Materials & Interfaces, 7, no. 18 (2015):9758-9766,
https://doi.org/10.1021/acsami.5b01624 . .