scholarly journals Exposure Medium: Key in Identifying Free Ag+ as the Exclusive Species of Silver Nanoparticles with Acute Toxicity to Daphnia magna

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Mo-Hai Shen ◽  
Xiao-Xia Zhou ◽  
Xiao-Ya Yang ◽  
Jing-Bo Chao ◽  
Rui Liu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Daphnia Magna

Acute toxicity of organic chemicals to Gammarus pulex correlates with sensitivity of Daphnia magna across most modes of action

2011 ◽  
Vol 103 (1-2) ◽  
pp. 38-45 ◽  
Author(s):  
Roman Ashauer ◽  
Anita Hintermeister ◽  
Eva Potthoff ◽  
Beate I. Escher
Keyword(s):  
Acute Toxicity ◽  
Daphnia Magna ◽  
Gammarus Pulex ◽  
Organic Chemicals ◽  
Modes Of Action

The assessment of Ficaria verna acute toxicity by two alternative methods: Daphnia magna and Physella acuta bioassays

2016 ◽  
Vol 258 ◽  
pp. S66
Author(s):  
O. Olaru ◽  
G. Nitulescu ◽  
C. Spinu ◽  
I. Potolea ◽  
O. Pirvu ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Daphnia Magna ◽  
Alternative Methods ◽  
Physella Acuta ◽  
Ficaria Verna

Silver nanoparticles and silver nitrate induce high toxicity to Pseudokirchneriella subcapitata, Daphnia magna and Danio rerio

2014 ◽  
Vol 466-467 ◽  
pp. 232-241 ◽  
Author(s):  
Fabianne Ribeiro ◽  
Julián Alberto Gallego-Urrea ◽  
Kerstin Jurkschat ◽  
Alison Crossley ◽  
Martin Hassellöv ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Silver Nitrate ◽  
Daphnia Magna ◽  
Danio Rerio ◽  
Pseudokirchneriella Subcapitata ◽  
High Toxicity

Investigating the process of electrocoagulation in the removal of azo dye from synthetic textile effluents and the effects of acute toxicity on Daphnia magna test organisms

2022 ◽  
Vol 45 ◽  
pp. 102485
Author(s):  
Carlos Eduardo Lach ◽  
Camila Schwarz Pauli ◽  
Aline Scheller Coan ◽  
Edesio Luiz Simionatto ◽  
Luciano André Deitos Koslowski
Keyword(s):  
Acute Toxicity ◽  
Daphnia Magna ◽  
Azo Dye ◽  
Textile Effluents ◽  
Test Organisms

scholarly journals Size-dependent acute toxicity of silver nanoparticles in mice

2018 ◽  
Vol 31 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Young-Man Cho ◽  
Yasuko Mizuta ◽  
Jun-ichi Akagi ◽  
Takeshi Toyoda ◽  
Mizuki Sone ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Size Dependent

scholarly journals Aquatic Toxicity Comparison of Silver Nanoparticles and Silver Nanowires

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Eun Kyung Sohn ◽  
Seyed Ali Johari ◽  
Tae Gyu Kim ◽  
Jin Kwon Kim ◽  
Ellen Kim ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Daphnia Magna ◽  
Silver Nanowires ◽  
Aquatic Toxicity ◽  
Oryzias Latipes ◽  
Aquatic Environments ◽  
Silver Nanomaterials ◽  
Raphidocelis Subcapitata ◽  
Test Organisms ◽  
Test Fish

To better understand the potential ecotoxicological impact of silver nanoparticles (AgNPs) and silver nanowires (AgNWs) released into freshwater environments, the toxicities of these nanomaterials were assessed and compared using Organization for Economic Cooperation and Development (OECD) test guidelines, including a “Daphniasp., acute immobilization test,” “Fish, acute toxicity test,” and “freshwater alga and cyanobacteria, growth inhibition test.” Based on the estimated median lethal/effective concentrations of AgNPs and AgNWs, the susceptibility to the nanomaterials was different among test organisms (daphnia > algae > fish), suggesting that the AgNPs are classified as “category acute 1” forDaphnia magna, “category acute 2” forOryzias latipes, and “category acute 1” forRaphidocelis subcapitata, while the AgNWs are classified as “category acute 1” forDaphnia magna, “category acute 2” forOryzias latipes, and “category acute 2” forRaphidocelis subcapitata, according to the GHS (Globally Harmonized System of Classification and Labelling of Chemicals). In conclusion, the present results suggest that more attention should be paid to prevent the accidental or intentional release of silver nanomaterials into freshwater aquatic environments.

Acute toxicity of some insecticides on Artemia salina and Daphnia magna

2012 ◽  
Vol 161 ◽  
pp. 29
Author(s):  
Dilsad Onbasili ◽  
Fatih Duman ◽  
Berrak Altinsoy ◽  
Hatice Bekci
Keyword(s):  
Acute Toxicity ◽  
Daphnia Magna ◽  
Artemia Salina

scholarly journals Application of Biotests in Cyanobacterial Extract Toxicity Assessment

2014 ◽  
Vol 40 (3) ◽  
pp. 115-121 ◽  
Author(s):  
Anna Sierosławska ◽  
Anna Rymuszka ◽  
Tadeusz Skowroński
Keyword(s):  
Acute Toxicity ◽  
Daphnia Magna ◽  
Microcystis Aeruginosa ◽  
Tetrahymena Thermophila ◽  
Toxicity Assessment ◽  
Taxonomic Identification ◽  
Dam Reservoir ◽  
Extract Concentration ◽  
Initial Extract ◽  
Toxicity Unit

Abstract The aim of the study was to determine the toxicity of the extract obtained from the cyanobacterial cells derived from the waters of Zemborzycki dam reservoir with use of a battery of biotests. The taxonomic identification of the bloom-forming cyanobacteria revealed high abundance of Aphanizomenon flos-aquae and Dolichospermum spp. (Anabaena spp.) and in a lower degree of Microcystis aeruginosa and Planktothrix agardhii. In the extract obtained from concentrated cyanobacterial cells, hepatotoxin microcystin-LR at a concentration of 22.89 ± 3.74 μg/L and neurotoxin Antx-a at 13.02 ± 0.01 μg/L have been detected. Toxicity of the extract was evaluated with the following assays: Daphtoxkit F magna with the crustacean Daphnia magna, Thamnotoxkit F with the crustacean Thamnocephalus platyurus, Rotoxkit F with the rotifer Brachionus calyciflorus and Protoxkit F with ciliate Tetrahymena thermophila. The most sensitive organism among all studied was T. platyurus for which EC50 was estimated to be 1.2% of the initial extract concentration. On the basis of the highest obtained value of the toxicity unit (TU = 83) the studied sample was classified to the IV class, which is of high acute toxicity. Additionally, it was found that reactivity on cyanobacterial products differs greatly among organisms used in bioassays, which indicate the need for using a set of biotests.

Prediction of acute toxicity of emerging contaminants on the water flea Daphnia magna by Ant Colony Optimization–Support Vector Machine QSTR models

2017 ◽  
Vol 19 (3) ◽  
pp. 438-448 ◽  
Author(s):  
Reza Aalizadeh ◽  
Peter C. von der Ohe ◽  
Nikolaos S. Thomaidis
Keyword(s):  
Support Vector Machine ◽  
Acute Toxicity ◽  
Ant Colony Optimization ◽  
Daphnia Magna ◽  
Emerging Contaminants ◽  
Ant Colony ◽  
Support Vector ◽  
Water Flea

Prediction of acute toxicity towardsDaphnia magnausing Ant Colony Optimization–Support Vector Machine QSTR models.

Acute toxicity assessment of textile dyes and textile and dye industrial effluents using Daphnia magna bioassay

2008 ◽  
Vol 24 (7) ◽  
pp. 491-500 ◽  
Author(s):  
Y Verma
Keyword(s):  
Acute Toxicity ◽  
Daphnia Magna ◽  
Aquatic Toxicity ◽  
Industrial Effluents ◽  
Toxicity Assessment ◽  
Textile Dyes ◽  
Textile Mill ◽  
Golden Yellow ◽  
Excellent Method ◽  
High Degree

Aquatic toxicity of textile dyes and textile and dye industrial effluents were evaluated in an acute toxicity study using Daphnia magna as an aquatic experimental animal model. The 48-h EC50 value for the azo dyes, Remazol Parrot Green was 55.32 mg/L and for Remazol Golden Yellow was 46.84 mg/L. Whereas 48-h EC50 values for three dye industrial effluents (D1, D2, and D3) were 14.12%, 15.52%, and 29.69%, respectively. Similarly, EC50 value for three textile mill effluents (T1, T2, and T3) were >100%, 62.97%, and 63.04%, respectively. These results also showed linear relationship with high degree of confidence ( r2 = >0.84 to >0.99) between immobility and test concentrations. The ratio of 24 to 48-h EC50 remains to be in between 1.1 and 1.2. The general criteria of toxicity classification showed that both dyes were minor acutely toxic having 48-h EC50 in between 10 and 100 mg/L. Of the six textile and dye industrial effluents tested, one was not acutely toxic (48-h EC50 > 100%) and five were minor acutely toxic (48-h EC50 > 14.12–29.69%). The toxicity classification of effluent based on toxic unit (TU) showed that of the six effluents tested five were found toxic (TU = >1) and one was non-toxic (TU = <1). Thus, dye effluents showed highest toxicity and textile effluents lowest toxicity. The study also suggested that the assay with D. magna was an excellent method for evaluation of aquatic toxicity of dyes and dyes containing industrial effluents.

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