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576832

Sigma-Aldrich

Silber

nanopowder, <100 nm particle size, contains PVP as dispersant, 99.5% trace metals basis

Synonym(e):

Colloidal nano silver, Colloidal silver, Nanosilver

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5 G
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About This Item

Lineare Formel:
Ag
CAS-Nummer:
7440-22-4
Molekulargewicht:
107.87
EG-Nummer:
231-131-3
MDL-Nummer:
MFCD00003397
UNSPSC-Code:
12141740
PubChem Substanz-ID:
24880887
NACRES:
NA.23

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Qualitätsniveau

200

Assay

99.5% trace metals basis

Form

nanopowder

Enthält

PVP as dispersant

Widerstandsfähigkeit

1.59 μΩ-cm, 20°C

Oberflächenbereich

5.0 m2/g

Partikelgröße

<100 nm

bp

2212 °C (lit.)

mp (Schmelzpunkt)

960 °C (lit.)

Dichte

10.49 g/cm3 (lit.)

SMILES String

[Ag]

InChI

1S/Ag

InChIKey

BQCADISMDOOEFD-UHFFFAOYSA-N

Verwandte Kategorien

Allgemeine Beschreibung

This silver nanopowder consists of metallic silver nanoparticles with a diameter less than 100 nm. These nanosilver particles are coated with polyvinylpyrrolidone (PVP) at a concentration of 0.2% by mass. This coating effectively limits surface oxidation and enhances the dispersion of the powder in various solvents.

Silver nanopowder is extensively utilized in medicinal applications and medical devices. The increased surface area to volume ratio and heightened reactivity of nanosilver make it particularly valuable in modern biomedical applications, particularly in coatings of medical devices.

Anwendung

Water based ink was formulated with the silver nanowires.[1] Silver nanoparticles, leading to higher amounts of elutable substances has been studied. [2] The immunological adjuvant effect of silver nanoparticles (AgNPs) was investigated both in vitro and in vivo. [3] Silver nanoparticles based graphite epoxy nanocomposites have been fabricated. [4] Action of AgNPs in enhanced thrombus formation as a consequence of increased platelet aggregation and procoagulant activity has been investigated.[5] Optical fiber sensor photodeposited with AgNPs have been fabricated. [6] PAN fiber based nanocomposites containing Ag and Hydroxyapatite as nanoadditives have been reported. [7]

Piktogramme

Environment
GHS09

Signalwort

Warning

H-Sätze

H410

Gefahreneinstufungen

Aquatic Acute 1 - Aquatic Chronic 1

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCW9152
MKCR9188
0000087240
MKCQ6280
MKCQ4804

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Silver nanoparticles toxicity and bactericidal effect against methicillin-resistant Staphylococcus aureus: nanoscale does matter
Ayala-Nu?ez et al.
NanoBiotechnology, 5(1-4), 2-9 (2009)
Silver nanocomposite electrode modified with hexacyanoferrate. Preparation, characterization and electrochemical behaviour towards substituted anilines
Fenga PG, et al.
Electroanalysis, 23(5), 1100-1106 (2011)
Yingying Xu et al.
Toxicology letters, 219(1), 42-48 (2013-03-05)
The immunological adjuvant effect of silver nanoparticles (AgNPs) was investigated both in vitro and in vivo. The in vivo adjuvant effect of AgNPs was evaluated with model antigen ovalbumin (OVA) and bovine serum albumin (BSA) in mice by intraperitoneal and
Antibacterial Properties of Silver-Finished Textiles
Matyjas-Zgondek E, et al.
Fibres and Textiles in Eastern Europe, 16(5), 101-107 (2008)
Eun-Ah Jun et al.
Nanotoxicology, 5(2), 157-167 (2010-09-09)
Despite the wide use of silver nanoparticles (nano Ag), its toxicity still remains poorly understood. In this report, nano Ag induced an increase in platelet aggregation and procoagulant activation which are the key contributors to thrombotic diseases. In freshly isolated
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Artikel

Silver Nanomaterials for Biological Applications

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

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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