The toxic effects of L-Cysteine-capped cadmium sulfide nanoparticles on the aquatic plant Spirodela polyrrhiza

Title
The toxic effects of L-Cysteine-capped cadmium sulfide nanoparticles on the aquatic plant Spirodela polyrrhiza
Author(s)
주상우Alireza Khataee[Alireza Khataee]Ali Movafeghi[Ali Movafeghi]Fatemeh Nazari[Fatemeh Nazari]Fatemeh Vafaei[Fatemeh Vafaei]Mohammad Reza Dadpour[Mohammad Reza Dadpour]요네스피로즈살라리
Keywords
QUANTUM DOTS; CDS NANOPARTICLES; LEMNA-MINOR; SILVER NANOPARTICLES; OXIDATIVE STRESS; FLUORESCENCE PROBE; TIO2 NANOPARTICLES; HEAVY-METALS; BEHAVIOR; ZNS
Issue Date
201412
Publisher
SPRINGER
Citation
JOURNAL OF NANOPARTICLE RESEARCH, v.16, no.12
Abstract
Plants play an important role in the fate of nanoparticles in the environment through their uptake, bioaccumulation, and transfer to trophic chains. However, the impacts of nanoparticles on plants as essential components of all ecosystems are not well documented. In the present study, the toxic effects of L-Cysteine-capped CdS nanoparticles on Spirodela polyrrhiza as an aquatic higher plant species were studied. L-Cysteine-capped CdS nanoparticles were synthesized using hydrothermal method and their characteristics were determined by XRD, SEM, HRTEM, and FT-IR techniques. The diameter of majority of synthesized nanoparticles was about 15-20 nm. Subsequently, the uptake of L-Cysteine-capped CdS nanoparticles by the plant species was confirmed using epifluorescence microscopy. The activity of peroxidase and superoxide dismutase as antioxidant enzymes was assayed and the relative frond number was calculated in the presence of different concentrations of L-Cysteine-capped CdS nanoparticles. The obtained results revealed the toxic effects of the synthesized nanoparticles on S. polyrrhiza, leading to growth reduction and significant changes in antioxidant enzymes' activity.
URI
http://hdl.handle.net/YU.REPOSITORY/30328http://dx.doi.org/10.1007/s11051-014-2774-7
ISSN
1388-0764
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공과대학 > 기계공학부 > Articles
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