Yes, this item is a silver dispersion. Silver nanoparticles do scatter light. The product specification range is 380-405 nm. As reported in the Properties section, the fluorescence λem is 388 nm with the FWHM at 59 nm and a refractive index of n20/D 1.333.
730785
Silver, dispersion
nanoparticles, 10 nm particle size (TEM), 0.02 mg/mL in aqueous buffer, contains sodium citrate as stabilizer
Synonym(s):
Colloidal silver
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25 ML
$172.00
About This Item
Linear Formula:
Ag
CAS Number:
Molecular Weight:
107.87
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23
Recommended Products
form
nanoparticles
Quality Level
contains
sodium citrate as stabilizer
concentration
0.02 mg/mL in aqueous buffer
refractive index
n20/D 1.333
particle size
10 nm (TEM)
density
0.997 g/mL at 25 °C
fluorescence
λem 388 nm FWHM 59 nm
storage temp.
2-8°C
SMILES string
[Ag]
InChI
1S/Ag
InChI key
BQCADISMDOOEFD-UHFFFAOYSA-N
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General description
Our silver nanoparticles (10 nm in diameter) are spherical nanoparticles of metallic silver dispersed in an aqueous buffer. The particles have high electronic conductivity, high surface area, and, because of their tightly controlled particle size, fluoresce at 388 nm with a FWHM of only 50 nm.
Application
AgNPs dispersion can be used for a variety of applications such as optoelectronics, energy harvesting, and surface enhanced Raman spectroscopy (SERS).[1]
signalword
Warning
hcodes
pcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1
Storage Class
12 - Non Combustible Liquids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Charlene Andraos et al.
International journal of toxicology, 39(5), 397-421 (2020-07-17)
Despite several studies addressing nanoparticle (NP) interference with conventional toxicity assay systems, it appears that researchers still rely heavily on these assays, particularly for high-throughput screening (HTS) applications in order to generate "big" data for predictive toxicity approaches. Moreover, researchers
Plasmonic effects of quantum size metal nanoparticles on Synthesis of highly monodisperse citrate-stabilized silver nanoparticles of up to 200 nm: kinetic control and catalytic properties
Bastus NG, et al.
Chemistry of Materials, 7(6), 2069-2083 (2017)
Synthesis and characterization of stable aqueous dispersions of silver nanoparticles through the Tollens process
Yin Y, et al.
Journal of Materials Chemistry, 12(3), 522-527 (2002)
Antibacterial effect of silver nanoparticles in Pseudomonas aeruginosa
Salomoni R, et al.
Nanotechnology, Science and Applications, 10(1-2), 115-115 (2017)
Direct synthesis of narrowly dispersed silver nanoparticles using a single-source precursor
Lin XZ, et al.
Langmuir, 19(24), 10081-10085 (2003)
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it can able to scatter light when it absorbs particular wavelength of light?
1 answer-
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Hi, I see that this silver colloidal is water based, but I could not find the information of which materials it is soluble. For example, is it soluble in chloroform or DMSO?
1 answer-
The product is a dispersion of silver nanoparticles in an aqueous buffer. Aqueous dispersants appear to be the the standard format. Please check the literature for further diluting in organic solvents or DMSO:
https://www.sigmaaldrich.com/search/730785?focus=papers&page=1&perpage=30&sort=relevance&term=730785&type=citation_search
https://www.sigmaaldrich.com/search/730785aldrich?facet=facet_content_type%3ATechnical%20Article&focus=sitecontent&page=1&perpage=30&sort=relevance&term=730785aldrich&type=site_contentHelpful?
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sulla descrizione del prodotto è indicato che sono sospese in buffer acquoso. Di quale buffer si tratta? e a che pH sono? grazie
1 answer-
The buffer used for product 730785 is a 2mM sodium citrate buffer. The pH of the solution is 6.9.
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