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G1402

Sigma-Aldrich

Gold colloid

~0.01% HAuCl4, ~1 A520 units/mL, 3.0-5.5 nm mean particle size (monodisperse), 5 nm particle size

Synonym(s):

Colloidal gold

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About This Item

Empirical Formula (Hill Notation):
Au
CAS Number:
7440-57-5
Molecular Weight:
196.97
MDL number:
MFCD00003436
UNSPSC Code:
12352302
PubChem Substance ID:
57654200

description

<0.01% tannic acid
<0.04% sodium citrate

form

dispersion
nanoparticles

contains

0.02% sodium azide as preservative

concentration

~0.01% HAuCl4
~1 A520 units/mL

mean particle size

3.0-5.5 nm (monodisperse)

particle size

5 nm

storage temp.

2-8°C

SMILES string

[Au]

InChI

1S/Au

InChI key

PCHJSUWPFVWCPO-UHFFFAOYSA-N

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Application

See "Immunocytochemical Methods and Protocols" Lorette C. Javois, chapter 8 (Sigma product I5653) for microscopy related applications.

Suitability

Suitable for adsorption of biomolecules for labeled probe synthesis.

Physical form

Colloidal suspension

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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J W Slot et al.
European journal of cell biology, 38(1), 87-93 (1985-07-01)
A new method is described for preparing colloidal gold particles in any size between approximately 3 and 17 nm for electron microscopy. The gold particles are homogeneous in size (homodisperse). When bound to various proteins (e.g. IgG and protein A)
Noor Artika Hassan et al.
Journal of environmental health, 77(6), 42-48 (2015-01-27)
Cyanidation in gold extraction has detrimental impacts on the ecosystem and the population in surrounding areas. The research described in this article aimed to assess the health effects of environmental exposure to cyanide in a community near a gold mining
Catalysis: Gold unleashes the power of three.
Christopher M B K Kourra et al.
Nature, 517(7535), 440-441 (2015-01-23)
Yuying Zhang et al.
Journal of visualized experiments : JoVE, (95)(95), e52058-e52058 (2015-01-16)
Fluorescent nanoparticles (NPs) with desirable chemical, optical and mechanical properties are promising tools to label intracellular organelles. Here, we introduce a method using gold-BSA-rhodamine NPs to label the endo-lysosomal system of eukaryotic cells and monitor manipulations of host cellular pathways
Huang Gao et al.
Science (New York, N.Y.), 346(6215), 1352-1356 (2014-12-17)
We report a low-cost, high-throughput benchtop method that enables thin layers of metal to be shaped with nanoscale precision by generating ultrahigh-strain-rate deformations. Laser shock imprinting can create three-dimensional crystalline metallic structures as small as 10 nanometers with ultrasmooth surfaces
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