Product Finder
Looking for a particular nanomaterial? Here is a list of many of the nanomaterials we have made over the years; click on a tag to narrow down the list to find what you're looking for. If you would like to request a custom material, please contact us.
Solvent Compatibility
Silica Coated Cobalt
10 nm cobalt nanoparticles were fabricated in solution, processed to remove residual reactants, and coated with thin silica shells. These nanoparticles are also available with citrate surfaces.
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Surface Enhanched Fluorescent Spheres
Silver nanoparticles were coated with a silica shell containing fluorescent organic dye molecules. Tuning the plasmon resonance of the core to overlap with the absorbance and emission of the dye molecule results in metal surface enhance fluorescence (SEF), enhancing the brightness of the particles by 10-30 times compared with an equivalent number of dye molecules in solution. NanoComposix can customize the scattering from the metal core, the emission from the fluorophore, and the surface chemistry of the silica shell for your application. For information about ordering this material, please contact us
Gold Spheres
Monodisperse with narrow size distributions. Electron microscopy, optical spectroscopy, and hydrodynamic diameter data provided with every batch. Available from 5-100 nm with a wide variety of surfaces. Learn more
Silica-Coated Gold Spheres
A wide range of core sizes and shell thicknesses with different surface functionalizations are available. Learn more
Silica-Coated Silver Spheres
A wide range of core sizes and shell thicknesses with different surface functionalizations are available. Learn more
Silver Spheres
Monodisperse with narrow size distributions. Electron microscopy, optical spectroscopy, and hydrodynamic diameter data provided with every batch. Available from 10-100 nm with a wide variety of surfaces. Learn more
Organic-Stable Gold Spheres
Dodecanethiol gold nanoparticles are available as a suspension in hexane and as a dried redispersible powder. The nanoparticles are dispersible in a variety of solvents. Learn more
Organic-Stable Silver Spheres
Dodecanethiol silver nanoparticles are available as a suspension in hexane and as a dried redispersible powder. The nanoparticles are dispersible in a variety of solvents. Learn more
Silver Nanowires
nanoComposix's silver nanowires have thicknesses of <100 nm and lengths as long as 40 microns. With aspect ratios (length:width) of up to 500, our silver nanowires have unique electronic and thermal conductive properties, and are commonly used as components in coatings and composites. Available with a Polyvinylpyrollidone (PVP) capping agent, and are also offered with silica shells. Learn more
150 nm Silica Coated Silver Nanospheres
150 nm BioPure silver nanospheres were fabricated, processed, and coated with thin silica shells. Extensive TEM characterization demonstrated that these custom silver nanospheres had CVs of < 8%. While our standard high quality silver nanospheres are available in sizes ranging from 10-100 nm, we routinely fabricate nanospheres with diameters between 4-10 nm and 100-200 nm on a custom basis.
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Silver Nanospheres with Thin Silica Shells
5 g batches of 30 nm, 40 nm, and 50 nm BioPure silver nanospheres were coated with 8 nm thick silica shells. Silver nanospheres with diameters between 30 - 200 nm can be shelled with silica shells as thin as 8 nm and as thick as 100 nm.
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200 nm Silver Nanospheres
200 nm silver nanospheres were fabricated, processed, and extensively characterized. TEM characterization demonstrated that these custom silver nanospheres had CVs of 11%. While our standard high quality silver nanospheres are available in sizes ranging from 10-100 nm, we can fabricate nanospheres with diameters between 4-10 nm and 100-200 nm on a custom basis.
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High Optical Density Solutions of Plasmonic Silver Nanoplates
Plasmonic nanoparticle formulations including silver nanospheres, gold nanospheres, and silver nanoplates, can be concentrated to provide solutions with optical densities of greater than 1000 OD/cm. Here, silica coated silver nanoplates were concentrated to provide a high optical density solution designed to interact with a near-infrared laser.
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Plasmonic Silver Nanoplates
Plasmonic nanoparticle formulations including silver nanospheres, gold nanospheres, and silver nanoplates, can be concentrated to provide solutions with optical densities of greater than 1000 OD/cm. Here, silica coated silver nanoplates were concentrated to provide a high optical density solution designed to interact with a near-infrared laser. Learn more
Gold Nanoparticles Provided in Toluene
500 mg of gold nanoparticles were fabricated, capped with oleyl amine, and transferred into toluene. These nanoparticles exhibit long term stability in both chloroform and toluene, and are ideal for applications which require organic solvents.
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Lipoic Acid Capped Gold Nanospheres
Various sizes of gold nanoparticles were fabricated, coated with lipoic acid and were extensively characterized. CPS (Centrifugal Particle Sizer) analysis showed that the hydrodynamic size of the particles was within 1 nm of the TEM determined size (typically other capping agents generate an increased DLS/CPS size compared with TEM measurements). The strong dithiol binding between the lipoic acid and the gold surface stabilizes the particles while leaving the acid group available for subsequent conjugation.
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200 nm Gold Nanospheres
200 nm gold nanospheres were fabricated, processed, and extensively characterized. TEM characterization demonstrated that these custom silver nanospheres had CVs of 9%. While our standard high quality gold nanospheres are available in sizes ranging from 5-100 nm, we routinely fabricate nanospheres with diameters between 100-200 nm on a custom basis.
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Positively Charged Gold Nanospheres
Gold nanoparticles coated with branched poly(ethylene imine) (BPEI) were fabricated at the 500 mg scale. The nanoparticles were characterized and found to have a zeta potential of +31 mV.
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Gold Nanopills
Pill-shaped gold nanoparticles were fabricated at a scale of 300 mg. These gold nanopills have aspect ratios (length:width) of 1.5-2, and support surface plasmon resonances in the 550 - 575 nm spectral range.
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Silica Nanospheres
Monodisperse silica nanospheres with diameters ranging from 100 nm to 1 micron can be fabricated at scales of up to 1 kilogram. Silica nanospheres are available with standard, amine, and sulfhydryl surfaces. Learn more
Magnetite Nanoparticles
Our concentrated dispersions are made up of unagglomerated nanoparticles that respond immediately to applied magnetic fields and can be coated with a variety of organic and inorganic surfaces for compatibility with biological and materials applications. Learn more
Copper Oxide Nanospheres
Copper oxide nanospheres with diameters ranging from 90 nm – 500 nm were fabricated and capped with PVP, and provided in ethylene glycol at a concentration of 2 mg/mL (Cu). Particles can also be provided as a redispersible dried powder.
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Platinum Nanoparticles
Platinum nanoparticles with sizes ranging from 30 - 200 nm and CVs of <15% were fabricated at the 500 mg scale.
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