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75 nm Silver Nanocubes

Product Number


  • Unagglomerated and monodisperse
  • Mean width: 75 nm ± 10 nm
  • Size distribution (CV) < 15%
  • Available at 1 mg/mL silver concentration
  • Particles have a PVP 55 kDa (polymer) surface and are provided in ethanol

Product Lines

Tight Size
Wide Variety
of Surfaces
Guaranteed Sterile
& Endotoxin-Free
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(certain products)

(certain products)
  • Monodisperse and unagglomerated
  • Standard colloidal concentration
  • Seven standard surfaces (citrate, tannic, PVP, lipoic acid, PEG, BPEI, silica)

Which Surface Should I Choose?

Surface Displaceable Salt
Stable in
Stable in
Stable in
Polar Organics
Stable in
Non-Polar Organics
Conjugatable Charge
at pH 7
PVP 40 kDa (Polymer) Learn more +
  • Associates very strongly to metal surfaces, giving excellent colloidal stability over a wide range of conditions
  • Nanoparticles can be dispersed in a wide variety of protic and aprotic polar solvents
  • Stable in high ionic strength solutions and at high concentrations

Certificate of Analysis Examples

Please note that these are representative Certificates of Analyses (CoAs) provided as examples for this product. We provide a unique batch-specific CoA with each product during shipment; only the CoA that arrives with your product should be referred to for actual characterization and measurement data. If you would like an electronic copy of the CoA for the product you received or the material(s) we currently have in stock, please contact us.

Product Line Surface Example CoA Product # Price
N NanoXact, 1 mg/mL PVP 55 kDa (Polymer) Download Example ↓ SCPH75-1M $325+
N NanoXact, 1 mg/mL PVP 55 kDa (Polymer) Download Example ↓ SCPH75-5M $1,250+
N NanoXact, 1 mg/mL PVP 55 kDa (Polymer) Download Example ↓ SCPH75-10M $2,050+
N NanoXact, 1 mg/mL PVP 55 kDa (Polymer) Download Example ↓ SCPH75-30M $4,450+

Need help reading our Certificates of Analysis? +


NanoComposix’s nanocubes have a polyvinylpyrrolidone (PVP) surface and are available with edge lengths of 75 nm or 100 nm. The particles have very high size and shape uniformity (coefficient of variation < 8%). The cubes are provided in ethanol at a silver mass concentration of 1 mg/mL.

Due to the cubic shape, silver nanocubes have unique optical properties. Much like gold nanoshells, the nanocubes are bichromic, exhibiting different colors depending on whether the sample is transmitting or scattering incident light. When illuminated from the front, 100 nm silver nanocubes appear beige in color, while illuminating them from behind yields a vibrant purple color. This unique feature can be utilized to generate color properties rarely seen in other materials with applications in cosmetics, plasmonic paints, and for integration into artisan glass and jewelry. Additionally, because these color properties are nearly impossible to replicate using traditional dyes and other colored materials, silver nanocubes can be used to create a unique optical signature for use in brand protection and anti-counterfeiting applications.

The crystal orientation of the nanocube surface ({100}) makes the nanocubes an ideal material for facet-selective catalysis studies. The nanocubes can also be used as templates for galvanic replacement to produce Au nanocages. Other applications include using the particles as patch antennas on surfaces to precisely measure particle-surface separation distances and their use as ultrasensitive molecular detectors.

Nanocube size, surface and dispersion media can be tuned for your application. Contact us for more information on our custom fabrication capabilities.


  1. Moreau, A., Ciraci, C., Mock, J., Hill, R., Wang, Q., Wiley, B., Chilkoti, A., Smith, D. R. (2012). Controlled-reflectance surfaces with film-coupled colloidal nanoantennas. Nature 492, 86-89. DOI:10.1038/nature11615.
  2. Christopher, P., Xin, H., Linic, S. (2011). Visible-light-enhanced catalytic oxidation reactions on plasmonic silver nanostructures. Nature Chemistry 3, 467-472. DOI:10.1038/nchem.1032.
  3. McLellan, J.M., Siekkinen, A., Chen, J., Xia, Y. (2006). Comparison of the surface-enhanced Raman scattering on sharp and truncated silver nanocubes. Chemical Physics Letters 427, 122-126. DOI:10.1016/j.cplett.2006.05.111.
  4. Christopher,P., Linic, S. (2010). Shape- and Size-Specific Chemistry of Ag Nanostructures in Catalytic Ethylene Epoxidation. ChemCatChem 2, 78-83. DOI: 10.1002/cctc.200900231.
  5. Chen, J., Saeki, F., Wiley, B. J., Cang, H., Cobb, M. J., Li, Z.-Y., Au, L., Zhang, H., Kimmey, M. B., Xingde, Xia, Y. (2005). Gold Nanocages:  Bioconjugation and Their Potential Use as Optical Imaging Contrast Agents. Nano Letters 5, 473–477. DOI: 10.1021/nl047950t.