636347
Gold
nanopowder, <100 nm particle size, 99.9% trace metals basis
Synonym(s):
Gold element
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About This Item
Empirical Formula (Hill Notation):
Au
CAS Number:
Molecular Weight:
196.97
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
11101801
EC Number:
231-165-9
MDL number:
assay
99.9% trace metals basis
form
nanopowder
reaction suitability
core: gold
resistivity
2.05 μΩ-cm, 0°C
particle size
<100 nm
bp
2808 °C (lit.)
mp
1063 °C (lit.)
density
19.3 g/mL at 25 °C (lit.)
SMILES string
[Au]
InChI
1S/Au
InChI key
PCHJSUWPFVWCPO-UHFFFAOYSA-N
General description
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.
Storage Class
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Related Content
This thematic issue focuses on the emerging applications of nanomaterials. Nanomaterials are defined as substances with at least one dimension smaller than 100 nm.
Cury, L.A. et al.
Synthetic Metals, 139, 283-283 (2003)
CVD synthesis of single-walled carbon nanotubes from gold nanoparticle catalysts.
Sreekar Bhaviripudi et al.
Journal of the American Chemical Society, 129(6), 1516-1517 (2007-02-08)
Ri-Chao Zhang et al.
Scientific reports, 7, 46682-46682 (2017-04-25)
Conductive polymers have been increasingly used as fuel cell catalyst support due to their electrical conductivity, large surface areas and stability. The incorporation of metal nanoparticles into a polymer matrix can effectively increase the specific surface area of these materials