Optical Materials, volume 64, pages 179-186

Optical properties and toxicity of undoped and Mn-doped ZnS semiconductor nanoparticles synthesized through the aqueous route

Houcine Labiadh 1
Badreddine Sellami 2
Abdelhafidh Khazri 3
Saidani Wiem 3
Khemais Said 4
1
 
Laboratory of Synthesis and Structure of Nanomaterials, Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia
2
 
Institut National des Sciences et Technologies de la Mer, 28 rue de 2 mars 1934, 2025 Salammbô, Tunisia
3
 
Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, Zarzouna, 7021, Bizerta, Tunisia,
4
 
Physical Organic Chemistry Laboratory (UR11ES74), Science Faculty of Sfax, 3018 Sfax, Tunisia
Publication typeJournal Article
Publication date2017-02-01
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor3.9
ISSN09253467
Electronic, Optical and Magnetic Materials
Organic Chemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Spectroscopy
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering
Abstract
Undoped and Mn-doped ZnS nanoparticles were synthesized at 95 °C in basic aqueous solution using the nucleation-doping strategy. Various samples of the Mn:ZnS NPs with 5, 10 and 20% of Mn dopant have been prepared and characterized using X-ray diffraction, energy-dispersive X-ray analysis, high resolution electron microscopy and photoluminescence (PL) measurements. When increasing the concentration of manganese Mn, the photoluminescence intensity gradually decreases. The PL spectra of the Mn-doped ZnS nanoparticles at room temperature exhibit both, the 450 nm blue defect-related emission and the 592 nm orange Mn2+ emission. It is vital to obtain NPs that meet the application requirements, however their environmental toxicity needs to be investigated. In this study, the induction of oxidative stress within the digestive gland of the Ruditapes decussatus organism (clam) is described. Antioxidant enzyme activities (superoxide dismutase (SOD) and catalase (CAT)) as well as malondialdehyde (MDA) levels have been determined in the digestive gland after exposure to 100 μg/L of ZnS, ZnS:Mn (5%), ZnS:Mn (10%) and ZnS:Mn (20%). The nanomaterials studied exhibit different responses in the digestive gland. Undoped Mn-ZnS has no effect on the markers considered, showing the limited interaction between this nanoparticle and the cells of the test organisms. In contrast, Mn-doped ZnS increases the activities of SOD and CAT and the level of MDA species, although this toxicity is highly dependent on the chemical properties of the material. These findings provide ideas for future considerations of ZnS nanoparticles, as well as information on the interaction between these materials and an aquatic environment. These data are the first evidence available of the formation of ZnS NPs using aqueous method and are an indication of the importance of knowing the biological target of the NPs when testing their potential impact on environmental model organisms.

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Labiadh H. et al. Optical properties and toxicity of undoped and Mn-doped ZnS semiconductor nanoparticles synthesized through the aqueous route // Optical Materials. 2017. Vol. 64. pp. 179-186.
GOST all authors (up to 50) Copy
Labiadh H., Sellami B., Khazri A., Wiem S., Said K. Optical properties and toxicity of undoped and Mn-doped ZnS semiconductor nanoparticles synthesized through the aqueous route // Optical Materials. 2017. Vol. 64. pp. 179-186.
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RIS Copy
TY - JOUR
DO - 10.1016/j.optmat.2016.12.011
UR - https://doi.org/10.1016/j.optmat.2016.12.011
TI - Optical properties and toxicity of undoped and Mn-doped ZnS semiconductor nanoparticles synthesized through the aqueous route
T2 - Optical Materials
AU - Labiadh, Houcine
AU - Sellami, Badreddine
AU - Khazri, Abdelhafidh
AU - Wiem, Saidani
AU - Said, Khemais
PY - 2017
DA - 2017/02/01 00:00:00
PB - Elsevier
SP - 179-186
VL - 64
SN - 0925-3467
ER -
BibTex
Cite this
BibTex Copy
@article{2017_Labiadh,
author = {Houcine Labiadh and Badreddine Sellami and Abdelhafidh Khazri and Saidani Wiem and Khemais Said},
title = {Optical properties and toxicity of undoped and Mn-doped ZnS semiconductor nanoparticles synthesized through the aqueous route},
journal = {Optical Materials},
year = {2017},
volume = {64},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016/j.optmat.2016.12.011},
pages = {179--186},
doi = {10.1016/j.optmat.2016.12.011}
}
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