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808865 Sigma-Aldrich

Gold nanoparticles

40 nm diameter, biotin terminated, PEG 5000, OD 50, dispersion in H2O

Synonym: Biotin Gold

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Properties

Related Categories 79: Au, Functionalized Gold Nanoparticles, Gold Nanoparticles, Materials Science, Nanomaterials,
form   dispersion in H2O
composition   , 3.58E12 particles/mL
concentration   2.33 mg/mL in H2O
OD   50
diameter   40 nm
surface area   7.74 m2/g
absorption   absorption 530 nm (peak SPR)
storage temp.   2-8°C

Description

Application

Biotin functionalized gold nanoparticles are suitable for binding of streptavidin labelled conjugates. The gold nanoparticle label allows for straightforward detection of streptavidin by measuring the increase in absorbance of the sample upon binding. The absorption maximum is gold nanoparticle size dependent and ranges from 515-520nm for a 5nm particle to 572nm for a 100nm particle.

General description

Gold nanoparticles PEG 5000 biotin terminated.The preparation of biotinylated gold nanoparticles involves two surface modification steps. First the carboxyl-terminated alkanethiol is attached to the surface of gold nanoparticles via chemisorption in the presence of a stabilizing agent. This step is followed by the reaction of the carboxyl groups with (+)-biotinyl-3,6,9,-trioxaundecanediamine and 2-(2-aminoethoxy)ethanol.

Legal Information

Product of CytoDiagnostics, Inc.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport

Documents

Certificate of Analysis


Webinar - Hydrogels
Protocols & Articles
Peer-Reviewed Papers
15

References

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