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938297

Sigma-Aldrich

Selenium nanoparticles

new

40 nm particle size, 0.03 wt. % in water, dispersion

Synonym(s):

Selenium nanoparticles, Selenium nanoparticles dispersed in water

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About This Item

Empirical Formula (Hill Notation):
Se
CAS Number:
Molecular Weight:
78.96
UNSPSC Code:
12352300

form

dispersion

Quality Level

concentration

0.03 wt. % in water

particle size

40 nm

InChI

1S/Se

InChI key

BUGBHKTXTAQXES-UHFFFAOYSA-N

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General description

We produce aqueous dispersions of selenium nanoparticles with a monodisperse particle size of 40 nm and high chemical purity. These selenium nanoparticles exhibit strong absorption at 565 nm, resulting in a bright red color, which makes them ideal for staining or as a label in lateral flow applications. Furthermore, selenium (Se) nanoparticles possess remarkable properties such as high photoconductivity, along with significant piezoelectric, thermoelectric, and nonlinear optical responses.We produce aqueous dispersions of selenium nanoparticles with a monodisperse particle size of 40 nm and high chemical purity. These selenium nanoparticles exhibit strong absorption at 565 nm, resulting in a bright red color, which makes them ideal for staining or as a label in lateral flow applications. Furthermore, selenium (Se) nanoparticles possess remarkable properties such as high photoconductivity, along with significant piezoelectric, thermoelectric, and nonlinear optical responses.

Application

Selenium nanoparticles (SeNPs) present higher biocompatibility and lower cytotoxicity than organic or inorganic Se compounds. Selenium nanoparticles have been studied for many therapeutic areas such as cancer, diabetes, Alzheimer′s disease and inflammation-related diseases, such as rheumatoid arthritis. Our 0.15wt% aqueous dispersion of 40 nm selenium nanoparticles are suitable to use in studies of therapeutic areas including treatment of fungal, bacterial, and parasitic infections, cancer, and diabetes. They can be used for targeted delivery of drugs, as contrast agents in medical imaging, and in the development of new therapeutic approaches. Due to its high photoconductivity and low melting point, it possesses great catalytic activity towards organic hydration and oxidation reactions.They have a narrow band gap (~1.7 eV), high absorption coefficient and mobility, which suits to be used as an absorber for high bandgap thin film solar cells. Selenium nanoparticles can be incorporated into solar cell technologies, specifically in the fabrication of thin-film solar cells or dye-sensitized solar cells.

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Selenium nanoparticles based on Amphipterygium glaucum extract with antibacterial, antioxidant, and plant biostimulant properties.
G. Garza, et al.
Journal of Nanobiotechnology (2023)
Therapeutic potential of selenium nanoparticles
K Deepasree et, al.
Frontiers in nanotechnology, 4 (2022)
Selenium Nanoparticles for Biomedical Applications: From Development and Characterization to Therapeutics.
C. Ferro, et al.
Advanced Helathcare Materials, 10, 2100598-2100598 (2021)
Selenium nanoparticles: a review on synthesis and biomedical applications
Bisht et al.
Materials Advances, 3, 1415-1431 (2022)

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