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Nanoprobes Gold Nanoparticles: Nanogold Labels for Imaging & Microscopy

Updated: March 13, 2019


  • Changes to unit sizes and prices. We have changed the unit sizes of a number of our products for 2019 and discontinued some package sizes. For an overview of our current products and price, see our PDF Price List.
  • Fraud alert: spoofed payment requests. A number of our contacts have received spoofed demands for outstanding payments. If you receive an email claiming that you have an outstanding or overdue invoice from us, do not reply or click any links in the email. Please contact us directly to check and let us know that that you received a spoofed message. We also assure our customers and distributors that have not found any evidence that this email was sent through our servers, or that it indicates any security compromise in our systems.
  • We are currently unable to ship directly to Japan. If you wish to order products for shipment to Japan, please contact one of our International Distributors for Japan.

The Power of
comes to Super-Resolution!

2-in-1 Labels for
BOTH Super-Res and TEM

See your target in its cellular context!

  • Alexa Fluor® 647 dye for Super-Res (STORM)
  • PLUS Nanogold® particles for visibility in TEM
  • Covalently bound for stability, long working times
  • Convenient secondary antibody/Fab' or streptavidin
  • Get both in a single, standard labeling procedure
  • Easy kits to enhance for light/phase microscopy


AuroVist™ is our amazing new xray contrast agent!

Unparalleled for Micro CT

AuroVist™ 15 nm:

Highest contrast of any blood pool contrast agent

Longest blood half-life of any x-ray contrast agent
-24 hrs!

AuroVist™ 1.9 nm:
Highest kidney contrast available

In vivo MicroCT after AuroVist™ 15 nm injection
Note very high contrast in blood and heart, with little accumulation in the liver. Mouse images from our Nanoparticle Research Collaborative.

Order online
Not yet approved for clinical use.
Very well tolerated--
Great for in vivo vascular imaging.


New!5nm Ni-NTA-NanogoldTM

See His-tagged proteins
directly under EM
with gold nanoparticles

No silver or gold development required

Doc Hainfeld "We've created a simple reagent that labels any His-tagged recombinant protein for imaging, even under EM,
in just one step."

--James F. Hainfeld, PhD
Nanoprobes founder and chief mad scientist.


Choose your solubility

Gold Nanomaterials: Functionalized Gold Nanoparticles

We now have gold nanomaterials,
functionalized for every solubility
We've got gold nanoparticles that are amphilic for all applications, hydrophilic for dissolving in water or alcohol, and hydrophobic for organic solvents like toluene.

Buy nowGet em while they're hot!


As we develop nanoparticle products for the scientific community,
we strive to engineer the most sensitive reagents
and nanotechnology for detecting biological molecules.

Our unique gold nanoparticle labeling technology uses chemically cross-linked metal clusters and nanoparticles as labels.

Unlike conventional immunogold probes, in which colloidal gold particles are electrostatically adsorbed to antibodies and proteins, our gold nanoparticle labels are uncharged molecules which are cross-linked to specific sites on biomolecules. This gives our nanogold probes greater range and versatility than colloidal gold.

Our labels can be attached to any molecule with a reactive group -- proteins, peptides, oligonucleotides, small molecules and lipids -- for detection and localization. Other labels can be combined with our gold particle labels; our unique FluoroNanogold probes combine Nanogold® and fluorescein into a single probe for imaging a specimen both by fluorescence and electron microscopy. Our gold nanoparticles, including our Nanogold™ conjugates, and Nanogold™ labeling reagents, are formulated for use with electron microscopy (tem) as well as light microscopy, immunolabeling, x-ray contrast for EM, angiography, mammography and microCT, and for correlative and fluorescence microscopy imaging.

New probes can be engineered based on any fragment of a naturally occurring biomolecule, and the label can be positioned away from the binding site so it does not interfere with binding.

Our Nanogold® probes have been cited in over 250 publications, and are used in the laboratories of several Nobel Laureates.

It's all about creating better tools and finding innovative solutions,
so that research and treatments can move ahead.

Drop us a line and let us know what you're working on. We'll be glad to help.

  Nanoprobes, Inc.
95 Horseblock Road, Unit 1
Yaphank, NY 11980-2301 USA


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