900480 Sigma-Aldrich

Gold nanoparticles

70 nm, NHS ester functionalized, conjugation kit

Synonym: NHS-activated gold nanoparticles

  •  NACRES NA.23



Related Categories Gold Nanoparticle Kits, Gold Nanoparticles, Materials Science, Nanomaterials
form   nanoparticles
shelf life   12 mo. at -20 °C (If stored unopened and as specified, are stable for at least 12 months)
packaging   pkg of 1 ea
storage condition   protect from light
particle size   70 nm
λmax   548 nm
functional group   NHS ester
storage temp.   −20°C



NHS ester functionalized gold nanoparticles conjugation kit (70 nm) can be used in the surface modification of indium tin oxide (ITO) electrodes for potential usage in electrocatalysis and electrochemical sensing.
AuNPs may be used to prepare SARS-CoV-2 conjugate for COVID-19 detection using lateral flow immunoassay technique. It can be potentially used in immobilization of antibodies to improve the sensitivity of optical fiber sensors for the screening of COVID-19. It can also be deposited on the titanium electrode for the formation of a miniaturized device for the electrochemical detection of DNA hybridization.

Legal Information

Product of CytoDiagnostics, Inc.

Safety & Documentation

Safety Information

NONH for all modes of transport
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles


Increasing the Sensitivity of Lateral Flow Diagnostic Assays with Ultra-Bright Gold Nanoshell Reporters

Lateral flow assays (also known as immunochromatographic assays) detect or quantify biomolecules in complex samples including blood, urine, saliva, or other fluids to diagnose a variety of medical co...
Keywords: Absorption, Adsorption, Bacterial conjugations, Centrifugation, Deposition, Detergents, Diagnostic, Filtration, Flow cytometry, Hormones, Hydration reaction, Immobilization, Ligands, Microscopy, Raman spectroscopy, Scanning electron microscopy, Spectroscopy, Transmission electron microscopy

Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?