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Effects of laser ablated silver nanoparticles on Lemna minor.
Chemosphere. 2014 Aug; 108:251-7.C

Abstract

The present study investigates and models the effect of laser ablated silver nanoparticles (AgNPs) on the development of the aquatic macrophyte Lemna minor. Toxic effects of five different AgNP concentrations (8, 16, 32, 96 and 128 μg L(-1)) on L. minor were recorded over seven days under simulated natural conditions. Biosorption of AgNPs by L. minor was modeled using four sorption isotherms, and the sorption behavior was found to agree most closely with the Langmuir-Freundlich model (R(2)=0.997). While toxic effects of AgNPs could be observed in all models and concentrations, the greatest increase in toxicity was in the 8-32 μg L(-1) range. Dry weight- and frond number-based inhibition experiments suggest that growth inhibition does not necessarily scale with AgNP concentration, and that slight fluctuations in inhibition rates exist over certain concentration ranges. Very close fits (R(2)=0.999) were obtained for all removal models, suggesting that the fluctuations are not caused by experimental variation. In addition, L. minor was found to be a successful bioremediation agent for AgNPs, and displayed higher removal rates for increasing AgNP doses. FT-IR spectroscopy suggests that carbonyl groups are involved in AgNP remediation.

Authors+Show Affiliations

Ankara University, Department of Biology, Faculty of Science, Ankara 06100, Turkey.Bilkent University, UNAM-Institute of Materials Science and Nanotechnology, Turkey.Bilkent University, UNAM-Institute of Materials Science and Nanotechnology, Turkey.Bilkent University, UNAM-Institute of Materials Science and Nanotechnology, Turkey.Bilkent University, UNAM-Institute of Materials Science and Nanotechnology, Turkey.Gazi University, Life Sciences Application and Research Center, Ankara 06830, Turkey; Gazi University, Polatlı Science and Literature Faculty, Ankara 06900, Turkey. Electronic address: ttekinay@gmail.com.Bilkent University, UNAM-Institute of Materials Science and Nanotechnology, Turkey.Bilkent University, UNAM-Institute of Materials Science and Nanotechnology, Turkey; University of Muğla, Department of Geological Engineering, 48000 Kötekli, Muğla, Turkey; Ordu University, Faculty of Marine Sciences, 52400 Fatsa, Ordu, Turkey. Electronic address: evren_tunca@yahoo.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24529395

Citation

Üçüncü, Esra, et al. "Effects of Laser Ablated Silver Nanoparticles On Lemna Minor." Chemosphere, vol. 108, 2014, pp. 251-7.
Üçüncü E, Özkan AD, Kurşungöz C, et al. Effects of laser ablated silver nanoparticles on Lemna minor. Chemosphere. 2014;108:251-7.
Üçüncü, E., Özkan, A. D., Kurşungöz, C., Ülger, Z. E., Ölmez, T. T., Tekinay, T., Ortaç, B., & Tunca, E. (2014). Effects of laser ablated silver nanoparticles on Lemna minor. Chemosphere, 108, 251-7. https://doi.org/10.1016/j.chemosphere.2014.01.049
Üçüncü E, et al. Effects of Laser Ablated Silver Nanoparticles On Lemna Minor. Chemosphere. 2014;108:251-7. PubMed PMID: 24529395.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of laser ablated silver nanoparticles on Lemna minor. AU - Üçüncü,Esra, AU - Özkan,Alper D, AU - Kurşungöz,Canan, AU - Ülger,Zeynep E, AU - Ölmez,Tolga T, AU - Tekinay,Turgay, AU - Ortaç,Bülend, AU - Tunca,Evren, Y1 - 2014/02/12/ PY - 2013/07/19/received PY - 2014/01/03/revised PY - 2014/01/06/accepted PY - 2014/2/18/entrez PY - 2014/2/18/pubmed PY - 2014/10/23/medline KW - Adsorption isotherm KW - Growth inhibition KW - Lemna minor KW - Nanoparticles KW - Silver KW - Toxicity SP - 251 EP - 7 JF - Chemosphere JO - Chemosphere VL - 108 N2 - The present study investigates and models the effect of laser ablated silver nanoparticles (AgNPs) on the development of the aquatic macrophyte Lemna minor. Toxic effects of five different AgNP concentrations (8, 16, 32, 96 and 128 μg L(-1)) on L. minor were recorded over seven days under simulated natural conditions. Biosorption of AgNPs by L. minor was modeled using four sorption isotherms, and the sorption behavior was found to agree most closely with the Langmuir-Freundlich model (R(2)=0.997). While toxic effects of AgNPs could be observed in all models and concentrations, the greatest increase in toxicity was in the 8-32 μg L(-1) range. Dry weight- and frond number-based inhibition experiments suggest that growth inhibition does not necessarily scale with AgNP concentration, and that slight fluctuations in inhibition rates exist over certain concentration ranges. Very close fits (R(2)=0.999) were obtained for all removal models, suggesting that the fluctuations are not caused by experimental variation. In addition, L. minor was found to be a successful bioremediation agent for AgNPs, and displayed higher removal rates for increasing AgNP doses. FT-IR spectroscopy suggests that carbonyl groups are involved in AgNP remediation. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/24529395/Effects_of_laser_ablated_silver_nanoparticles_on_Lemna_minor_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(14)00115-5 DB - PRIME DP - Unbound Medicine ER -