Aquatic ecotoxicity effect of engineered aminoclay nanoparticles

Moon-Hee Choi, Yuhoon Hwang, Hyun Uk Lee, Bohwa Kim, Go-Woon Lee, Henrik Rasmus Andersen, Young-Chul Lee, Yun Suk Huh

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In the present study the short term aquatic ecotoxicity of water-solubilized aminoclay nanoparticles (ANPs) of ~51±31 nm average hydrodynamic diameter was characterized. An ecotoxicological evaluation was carried out utilizing standard test organisms of different phyla and trophic levels namely the eukaryotic microalga Pseudokirchneriella subcapitata, the crustacean Daphnia magna and the bioluminescent marine bacteria Vibrio fisheri. The effective inhibitory concentration (EC50) with 95% confidence limits for the microalga was 1.29 mg/L (0.72–1.82) for the average growth rate and 0.26 mg/L (0.23–0.31) for the cell yield. The entrapping of algal cells in aggregates of ANP may play a major role in the growth inhibition of algae P. subcapitata. No inhibition was observed for V. fisheri up to 25,000 mg/L (no observed effect concentration; NOEC). For D. magna no immobilization was observed in a limit test with 100 mg/L in 24 h while in 48 h a single animal was immobilized (5% inhibition). Correspondingly, the NOEC of ANP in 24 h was 100 mg/L and the lowest observed effect concentration (LOEC) for 48 h was 100 mg/L. Therefore it can be considered to use ANP as an algal-inhibition agent at concentrations <100 mg/L without affecting or only mildly affecting other organisms including zooplanktons, but further studies on the environmental fate and chronic toxicity of ANP is needed to confirm this.
Original languageEnglish
JournalEcotoxicology and Environmental Safety
Volume102
Issue number1
Pages (from-to)34-41
ISSN0147-6513
DOIs
Publication statusPublished - 2014

Cite this

Choi, Moon-Hee ; Hwang, Yuhoon ; Uk Lee, Hyun ; Kim, Bohwa ; Lee, Go-Woon ; Andersen, Henrik Rasmus ; Lee, Young-Chul ; Suk Huh, Yun. / Aquatic ecotoxicity effect of engineered aminoclay nanoparticles. In: Ecotoxicology and Environmental Safety. 2014 ; Vol. 102, No. 1. pp. 34-41.
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title = "Aquatic ecotoxicity effect of engineered aminoclay nanoparticles",
abstract = "In the present study the short term aquatic ecotoxicity of water-solubilized aminoclay nanoparticles (ANPs) of ~51±31 nm average hydrodynamic diameter was characterized. An ecotoxicological evaluation was carried out utilizing standard test organisms of different phyla and trophic levels namely the eukaryotic microalga Pseudokirchneriella subcapitata, the crustacean Daphnia magna and the bioluminescent marine bacteria Vibrio fisheri. The effective inhibitory concentration (EC50) with 95{\%} confidence limits for the microalga was 1.29 mg/L (0.72–1.82) for the average growth rate and 0.26 mg/L (0.23–0.31) for the cell yield. The entrapping of algal cells in aggregates of ANP may play a major role in the growth inhibition of algae P. subcapitata. No inhibition was observed for V. fisheri up to 25,000 mg/L (no observed effect concentration; NOEC). For D. magna no immobilization was observed in a limit test with 100 mg/L in 24 h while in 48 h a single animal was immobilized (5{\%} inhibition). Correspondingly, the NOEC of ANP in 24 h was 100 mg/L and the lowest observed effect concentration (LOEC) for 48 h was 100 mg/L. Therefore it can be considered to use ANP as an algal-inhibition agent at concentrations <100 mg/L without affecting or only mildly affecting other organisms including zooplanktons, but further studies on the environmental fate and chronic toxicity of ANP is needed to confirm this.",
author = "Moon-Hee Choi and Yuhoon Hwang and {Uk Lee}, Hyun and Bohwa Kim and Go-Woon Lee and Andersen, {Henrik Rasmus} and Young-Chul Lee and {Suk Huh}, Yun",
year = "2014",
doi = "10.1016/j.ecoenv.2014.01.005",
language = "English",
volume = "102",
pages = "34--41",
journal = "Ecotoxicology and Environmental Safety",
issn = "0147-6513",
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Choi, M-H, Hwang, Y, Uk Lee, H, Kim, B, Lee, G-W, Andersen, HR, Lee, Y-C & Suk Huh, Y 2014, 'Aquatic ecotoxicity effect of engineered aminoclay nanoparticles', Ecotoxicology and Environmental Safety, vol. 102, no. 1, pp. 34-41. https://doi.org/10.1016/j.ecoenv.2014.01.005

Aquatic ecotoxicity effect of engineered aminoclay nanoparticles. / Choi, Moon-Hee; Hwang, Yuhoon; Uk Lee, Hyun; Kim, Bohwa; Lee, Go-Woon; Andersen, Henrik Rasmus; Lee, Young-Chul; Suk Huh, Yun.

In: Ecotoxicology and Environmental Safety, Vol. 102, No. 1, 2014, p. 34-41.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Aquatic ecotoxicity effect of engineered aminoclay nanoparticles

AU - Choi, Moon-Hee

AU - Hwang, Yuhoon

AU - Uk Lee, Hyun

AU - Kim, Bohwa

AU - Lee, Go-Woon

AU - Andersen, Henrik Rasmus

AU - Lee, Young-Chul

AU - Suk Huh, Yun

PY - 2014

Y1 - 2014

N2 - In the present study the short term aquatic ecotoxicity of water-solubilized aminoclay nanoparticles (ANPs) of ~51±31 nm average hydrodynamic diameter was characterized. An ecotoxicological evaluation was carried out utilizing standard test organisms of different phyla and trophic levels namely the eukaryotic microalga Pseudokirchneriella subcapitata, the crustacean Daphnia magna and the bioluminescent marine bacteria Vibrio fisheri. The effective inhibitory concentration (EC50) with 95% confidence limits for the microalga was 1.29 mg/L (0.72–1.82) for the average growth rate and 0.26 mg/L (0.23–0.31) for the cell yield. The entrapping of algal cells in aggregates of ANP may play a major role in the growth inhibition of algae P. subcapitata. No inhibition was observed for V. fisheri up to 25,000 mg/L (no observed effect concentration; NOEC). For D. magna no immobilization was observed in a limit test with 100 mg/L in 24 h while in 48 h a single animal was immobilized (5% inhibition). Correspondingly, the NOEC of ANP in 24 h was 100 mg/L and the lowest observed effect concentration (LOEC) for 48 h was 100 mg/L. Therefore it can be considered to use ANP as an algal-inhibition agent at concentrations <100 mg/L without affecting or only mildly affecting other organisms including zooplanktons, but further studies on the environmental fate and chronic toxicity of ANP is needed to confirm this.

AB - In the present study the short term aquatic ecotoxicity of water-solubilized aminoclay nanoparticles (ANPs) of ~51±31 nm average hydrodynamic diameter was characterized. An ecotoxicological evaluation was carried out utilizing standard test organisms of different phyla and trophic levels namely the eukaryotic microalga Pseudokirchneriella subcapitata, the crustacean Daphnia magna and the bioluminescent marine bacteria Vibrio fisheri. The effective inhibitory concentration (EC50) with 95% confidence limits for the microalga was 1.29 mg/L (0.72–1.82) for the average growth rate and 0.26 mg/L (0.23–0.31) for the cell yield. The entrapping of algal cells in aggregates of ANP may play a major role in the growth inhibition of algae P. subcapitata. No inhibition was observed for V. fisheri up to 25,000 mg/L (no observed effect concentration; NOEC). For D. magna no immobilization was observed in a limit test with 100 mg/L in 24 h while in 48 h a single animal was immobilized (5% inhibition). Correspondingly, the NOEC of ANP in 24 h was 100 mg/L and the lowest observed effect concentration (LOEC) for 48 h was 100 mg/L. Therefore it can be considered to use ANP as an algal-inhibition agent at concentrations <100 mg/L without affecting or only mildly affecting other organisms including zooplanktons, but further studies on the environmental fate and chronic toxicity of ANP is needed to confirm this.

U2 - 10.1016/j.ecoenv.2014.01.005

DO - 10.1016/j.ecoenv.2014.01.005

M3 - Journal article

VL - 102

SP - 34

EP - 41

JO - Ecotoxicology and Environmental Safety

JF - Ecotoxicology and Environmental Safety

SN - 0147-6513

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ER -