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
753610
Gold nanoparticles
20 nm diameter, OD 1, stabilized suspension in 0.1 mM PBS, reactant free
Synonyme(s) :
Au NP, Gold colloid
Sélectionner une taille de conditionnement
Sélectionner une taille de conditionnement
About This Item
Produits recommandés
Forme
nanoparticles
suspension
Concentration
~6.54E+11 particles/mL
DO
1
Diamètre
20 nm
λmax
518-522 nm
PDI
<0.2
Température de stockage
2-8°C
Chaîne SMILES
[Au]
InChI
1S/Au
Clé InChI
PCHJSUWPFVWCPO-UHFFFAOYSA-N
Vous recherchez des produits similaires ? Visite Guide de comparaison des produits
Catégories apparentées
Description générale
Application
Informations légales
Code de la classe de stockage
12 - Non Combustible Liquids
Classe de danger pour l'eau (WGK)
nwg
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Faites votre choix parmi les versions les plus récentes :
Déjà en possession de ce produit ?
Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
Les clients ont également consulté
Articles
Steven J. Oldenburg, Ph.D. provides an overview of lateral flow diagnostic assays and discusses the use of ultra-bright reporter particles based on the unique optical properties of gold nanoshells that significantly increase the sensitivity of lateral flow immunoassays.
Sustainable energy sources with high production efficiency are crucial for meeting increasing energy demand.
Gold (Au) nanoparticles have tunable optical and electronic properties and are used in a number of applications including photovoltaics, sensors, drug delivery & catalysis.
Recent research highlights tunable properties of inorganic nanoparticles, driving interest in optoelectronics.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
-
-
If i want to concentrate or isolate gold mannan particles and remove any unlabeled mannan what filtration or centrifugation conditions should be used.
1 answer-
This product is comprised of stabilized gold nanoparticles in 0.1 mM PBS. There is no mannan present. The material may be concentrated by centrifugation. Note that aggregation may become an issue if the particles are removed from the stabilizing solution.
Helpful?
-
-
What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Helpful?
-
-
What is the shape of the gold nanoparticles?
1 answer-
The majority (>95%) of the gold nanoparticles are spherical.
Helpful?
-
-
Why does my gold nanoparticle solution turn violet when I add salt containing buffer?
1 answer-
Due to repulsive forces arising from the surface charge of gold nanoparticles, an energy barrier must be overcome for individual particles to interact. When no (or small) amounts of electrolytes such as NaCl is present, this energy barrier is too strong for interaction to occur between particles. However, upon addition of NaCl this energy barrier is reduced allowing the gold nanoparticles to interact and aggregate. This aggregation causes a phenomenon called surface-plasmon coupling which changes the adsorption maximum of light to a higher wavelength resulting in a change in color of the solution.
Helpful?
-
-
How does the storage temperature relate to shipping conditions?
1 answer-
The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment.
Helpful?
-
-
How do you attach gold nanoparticles to oligos?
1 answer-
To attach gold nanoparticles to oligos please view the information in the attached reference - Bioconjug Chem. 2011 Apr 20;22(4):794-807. Epub 2011 Mar 28.
Helpful?
-
-
How do you attach gold nanoparticles to peptides and peptide conjugates?
1 answer-
To view information on how to attach gold nanoparticles to peptides and peptide conjugates, please view the information in the reference - Rosenthal, S. J. and Wright, D. W. (Eds.). (2005), p. 91-92. NanoBiotechnology Protocols. New Jersey. Humana Press.
Helpful?
-
-
Can the Gold nanoparticles be frozen?
1 answer-
No, the Gold nanoparticles should not be frozen. If frozen, the gold nanoparticles will irreversibly aggregate, turning the solution clear.
Helpful?
-
Active Filters
Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..
Contacter notre Service technique
