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928224

Sigma-Aldrich

Gold nanoparticles

70 nm diameter, azide functionalized, 1ml, OD 50, in water

Synonym(s):

AuNP, GdNP, Gold NP

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About This Item

UNSPSC Code:
12141717
NACRES:
NA.22

Quality Level

description

Alkyne surface density: 1/nm2

concentration

in water

OD

50

core diam.

70 nm , Coefficient of Variance < 12%

diameter

70 nm

λmax

548 nm

PDI

<0.200

functional group

azide

storage temp.

2-8°C

InChI

1S/Au

InChI key

PCHJSUWPFVWCPO-UHFFFAOYSA-N

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General description

Azide functionalized gold nanoparticles are suitable for covalent conjugation of any molecule with a terminal alkyne through click chemistry. These gold nanoparticles allow for rapid generation of gold conjugates for subsequent use in downstream assays.

Azide functionalized gold nanoparticles are more than 95% spherical and have uniform size distribution (CV <12%).

Application

Ideal for development of gold conjugates for use in applications such as blotting, lateral flow assays, microscopy, and transmission electron microscopy (TEM).

Storage and Stability

When stored for a long period of time gold nanoparticles may sediment at the bottom of the vial, which is especially prominent for larger particle sizes. Prior to use, re-suspend the sedimented particles by thorough mixing until a homogenous solution is obtained.

Storage Class

10 - Combustible liquids

wgk_germany

WGK 2


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Jennifer L Brennan et al.
Bioconjugate chemistry, 17(6), 1373-1375 (2006-11-16)
A simple and versatile method for the preparation of functional enzyme-gold nanoparticle conjugates using "click" chemistry has been developed. In a copper-catalyzed 1,2,3-triazole cycloaddition, an acetylene-functionalized Thermomyces lanuginosus lipase has been attached to azide-functionalized water-soluble gold nanoparticles under retention of

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