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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F12%3A33118831%21RIV13-MSM-15310___
rdf:type
n11:Vysledek skos:Concept
dcterms:description
Cyanobacteria pose a serious threat to water resources around the world. This is compounded by the fact that they are extremely resilient, having evolved numerous protective mechanisms to ensure their dominant position in their ecosystem. We show that treatment with nanoparticles of zero-valent iron (nZVI) is an effective and environmentally benign method for destroying and preventing the formation of cyanobacterial water blooms. The nanoparticles have multiple modes of action, including the removal of bioavailable phosphorus, the destruction of cyanobacterial cells, and the immobilization of microcystins, preventing their release into the water column. Ecotoxicological experiments showed that nZVI is a highly selective agent, having an EC50 of 50 mg/L against cyanobacteria; this is 20-100 times lower than its EC50 for algae, daphnids, water plants, and fishes. The primary product of nZVI treatment is non-toxic and highly aggregated Fe(OH)3, which promotes flocculation and gradual settling of the decomposed cyanobacterial biomass. Cyanobacteria pose a serious threat to water resources around the world. This is compounded by the fact that they are extremely resilient, having evolved numerous protective mechanisms to ensure their dominant position in their ecosystem. We show that treatment with nanoparticles of zero-valent iron (nZVI) is an effective and environmentally benign method for destroying and preventing the formation of cyanobacterial water blooms. The nanoparticles have multiple modes of action, including the removal of bioavailable phosphorus, the destruction of cyanobacterial cells, and the immobilization of microcystins, preventing their release into the water column. Ecotoxicological experiments showed that nZVI is a highly selective agent, having an EC50 of 50 mg/L against cyanobacteria; this is 20-100 times lower than its EC50 for algae, daphnids, water plants, and fishes. The primary product of nZVI treatment is non-toxic and highly aggregated Fe(OH)3, which promotes flocculation and gradual settling of the decomposed cyanobacterial biomass.
dcterms:title
Multimodal Action and Selective Toxicity of Zerovalent Iron Nanoparticles against Cyanobacteria Multimodal Action and Selective Toxicity of Zerovalent Iron Nanoparticles against Cyanobacteria
skos:prefLabel
Multimodal Action and Selective Toxicity of Zerovalent Iron Nanoparticles against Cyanobacteria Multimodal Action and Selective Toxicity of Zerovalent Iron Nanoparticles against Cyanobacteria
skos:notation
RIV/61989592:15310/12:33118831!RIV13-MSM-15310___
n11:predkladatel
n16:orjk%3A15310
n3:aktivita
n6:P n6:Z
n3:aktivity
P(1M0512), P(1M0571), P(ED2.1.00/03.0058), P(FR-TI3/196), P(KAN115600801), P(QH81012), Z(AV0Z60050516), Z(MSM6198959218)
n3:cisloPeriodika
4
n3:dodaniDat
n10:2013
n3:domaciTvurceVysledku
n12:8570647 n12:7008686 n12:9251189 n12:7321023
n3:druhVysledku
n20:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
152406
n3:idVysledku
RIV/61989592:15310/12:33118831
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Zero-valent iron nanoparticles, cyanobacteria, water treatment, precipitation, phosphate, photosynthesis, cell degradation, microcystin, iron uptake, iron hydroxide.
n3:klicoveSlovo
n9:photosynthesis n9:cyanobacteria n9:precipitation n9:Zero-valent%20iron%20nanoparticles n9:phosphate n9:water%20treatment n9:iron%20uptake n9:microcystin n9:iron%20hydroxide. n9:cell%20degradation
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[F91DDE7153EE]
n3:nazevZdroje
Environmental Science & Technology
n3:obor
n17:CF
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
7
n3:projekt
n7:1M0571 n7:QH81012 n7:1M0512 n7:KAN115600801 n7:ED2.1.00%2F03.0058 n7:FR-TI3%2F196
n3:rokUplatneniVysledku
n10:2012
n3:svazekPeriodika
46
n3:tvurceVysledku
Mašláň, Miroslav Tuček, Jiří Jančula, Daniel Maršálková, Eliška Šafářová, Klára Zbořil, Radek Maršálek, Blahoslav
n3:wos
000300465900046
n3:zamer
n8:AV0Z60050516 n8:MSM6198959218
s:issn
0013-936X
s:numberOfPages
8
n15:doi
10.1021/es2031483
n4:organizacniJednotka
15310