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730785

Sigma-Aldrich

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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About This Item

Linear Formula:
Ag
CAS Number:
Molecular Weight:
107.87
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

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).

pictograms

Environment

signalword

Warning

hcodes

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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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)
Silver nanoparticles: green synthesis and their antimicrobial activities
Sharma VK, et al.
Advances in Colloid and Interface Science, 145(1-2), 83-96 (2009)
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)
Parth Sarthi Nayak et al.
IET nanobiotechnology, 13(2), 193-201 (2019-05-06)
Nanoparticles fabricated using medicinal plant extract have great potential in the area of nanomedicine. High surface-to-volume ratio of nanoparticle enhances the local active biomolecules concentration, leading to many fold increase in the medicinal potentials. The silver nanoparticles (AgNPs) fabricated using

Articles

A key challenge for nanomaterial safety assessment is the ability to handle the large number of newly engineered nanomaterials (ENMs), including developing cost-effective methods that can be used for hazard screening.

Silver nanomaterials have unique physical, chemical, and optical properties that are currently being leveraged for a wide variety of biological applications.

Nanostructured Materials Through Ultrasonic Spray Pyrolysis

Advances in materials have often been led by the development of new synthetic methods that provide control over size, morphology and structure. The preparation of materials in a scalable and continuous manner is critical when development moves beyond lab-scale quantities.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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