20nm Reactant Free Gold Nanoparticles

For laboratories developing surface-enhanced Raman spectroscopy (SERS), nanoparticle conjugation, lateral flow assay development, and immunoassay development, the 20 nm reactant-free gold nanoparticles format provides a defined material option for online scientific purchasing and product selection.

Gold nanoparticles are widely used as plasmonic labels and conjugation scaffolds because their optical response, surface chemistry and particle size can be matched to assay, imaging or sensor formats. The listed absorption maximum of 524 nm can help compare this size with related gold nanoparticle options.

The reactant-free format is useful when sensitive downstream workflows require minimized residual manufacturing reactants. It should be compared with standard, stabilized or endotoxin-free versions according to the application and formulation requirements of the experiment.

The supplied description emphasizes controlled size distribution and defined particle morphology. Those details matter when comparing related nanoparticle products for optical response, conjugation behavior or assay consistency.

The application profile includes surface-enhanced Raman spectroscopy (SERS), nanoparticle conjugation, lateral flow assay development, immunoassay development, electron microscopy, and toxicity studies. These terms reflect the supported scientific workflows for this listing and help scientists compare related products by use case, not by material alone.

This size range is often selected as a balance between particle number, optical response and biomolecular surface area.

For gold nanoparticle workflows, compare standard, stabilized, reactant-free, endotoxin-free and functionalized versions according to the application. The same size can behave differently depending on the surface chemistry and formulation.

For procurement and product selection, compare it with related nanoparticles by particle size, surface chemistry, formulation and listed application rather than treating all nanoparticles as interchangeable.

Application areas

• Nanoparticle conjugation with supported proteins, ligands or biomolecules
• Lateral flow assay development and rapid-test component optimization
• Immunoassay development, immunostaining or related antibody-based formats
• Surface-enhanced Raman spectroscopy (SERS) and plasmon-enhanced signal workflows
• Electron microscopy labeling and contrast workflows