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15nm Endotoxin Free Gold Nanoparticles

RN-CY-GEF-15-20

Composition: Citric acid stabilized Gold Colloid
Core Size: 15nm
Absorption max: 522nm
Particles per ml: 1.64E+12

Purity: >99% reactant free

Endotoxin levels: <0.5 EU/mL
Formulation: Supplied in 0.1mM phosphate buffered saline (PBS)

Nanoparticles, Gold Nanoparticles

Intended use: Our extensively purified endotoxin free gold nanoparticles are ideal for sensitive applications requiring a minimal amount of contaminants, such as cellular toxicity studies, immunological studies, and aseptic assays. This product is well suited for conjugate development by passive adsorption of proteins and other ligands to the gold nanoparticle surface. The resulting conjugate can then be used in downstream applications.

Properties

Cytodiagnostics endotoxin free gold nanoparticles are made using a unique proprietary protocol resulting in pure, endotoxin free particles with superior size distribution and shape compared to that of the leading competitor.

Our gold nanoparticle preparations have a narrow size distribution (CV of less than 15%), exceptional protein adsorption properties and more than 95% spherical particles. In addition, low batch to batch variability (+/- 2nm) assures you as a customer always end up with a product within the specified size range ordered.

All of our batches go through stringent quality control prior to shipment to our customers using dynamic light scattering to guarantee size and monodispersity and lot specifications are supplied with each product. The endotoxin levels of all batches are validated by the Limulus amebocyte lysate (LAL) test and do not exceed 0.5EU/mL.

Storage

Store product away from direct sunlight at 4-25°C. Lower temperature prolongs the shelf life of the product.

Do NOT freeze. Freezing causes irreversible aggregation of the gold nanoparticles.

When stored as specified the product is stable for at least six months.

Product Data

15nm DLS and UV-VIS spectrum

Diameter Peak SPR Wavelength (nm) NPS/ml* Wt. Conc. (mg/ml)* Molar Ext. (M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration*
15 520 1.64E+12 5.61E-02 3.67E+08 <12% 1.77E+03 7.07E+02 0.4 3.43E-17 2.06E+07 2.72E-09

* All concentrations as indicated at an optical density of 1 (OD=1, i.e. absorbance at peak SPR wavelength with a 1cm pathlength)

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