636347

Gold

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

• Synonym(s): Gold element
• Empirical Formula (Hill Notation): Au
• CAS Number: 7440-57-5
• Molecular Weight: 196.97
• NACRES: NA.23
• PubChem Substance ID: 24882773
• UNSPSC Code: 11101801
• EC Number: 231-165-9
• MDL number: MFCD00003436

Properties

• Quality Segment: 100
• 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

Description

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.

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)