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636347

Sigma-Aldrich

Gold

nanopowder, <100 nm particle size, 99.9% trace metals basis

Synonyme(s) :

Gold element

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About This Item

Formule empirique (notation de Hill):
Au
Numéro CAS:
7440-57-5
Poids moléculaire :
196.97
Numéro CE :
231-165-9
Numéro MDL:
MFCD00003436
Code UNSPSC :
12352302
ID de substance PubChem :
24882773
Nomenclature NACRES :
NA.23

Pureté

99.9% trace metals basis

Forme

nanopowder

Résistivité

2.05 μΩ-cm, 0°C

Taille des particules

<100 nm

Point d'ébullition

2808 °C (lit.)

Pf

1063 °C (lit.)

Densité

19.3 g/mL at 25 °C (lit.)

Chaîne SMILES 

[Au]

InChI

1S/Au

Clé InChI

PCHJSUWPFVWCPO-UHFFFAOYSA-N

Catégories apparentées

Description générale

Gold nanoparticles are extensively used as preferred materials for labeling, imaging, sensing, and biomedical applications due to their following unique properties:
  • Ease of synthetic manipulation
  • Strong binding affinity to thiols, disulfides, and amines
  • Unique tunable optical and distinct electronic properties
  • High X-ray absorption coefficient

Application

Gold nanoparticles can be used:
  • As a catalyst in the preparation of single-walled carbon nanotubes by a chemical vapor deposition method.
  • In the preparation of conducting polymer matrix AuNPs/PEDOT: PSS(poly(3,4-ethylenedioxythiophene) polystyrene sulfonate), which is applicable in fuel cell electrocatalysis.
  • To prepare fluorescent nanocomposites for targeted bioimaging.
  • As carriers of signaling antibody in developing optical ELISA for analysis of breast cancer biomarker.

Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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In this work, we developed an optical enzyme-linked immunosorbent assay (ELISA) immunoassay for the analysis of CA15-3 antigen, an important biomarker present in blood samples and useful for the follow-up of the medical treatment of breast cancer. Gold nanoparticles (AuNPs)
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