nanoComposix offers precisely engineered nanoparticles across a broad range of materials, sizes, surfaces, and formulations. Our standard portfolio provides flexible options for research and product development, while specialized formulations and product lines address applications that require low endotoxin, diagnostic-ready surfaces, or exceptionally tight particle-size control.
Use the guide below to identify the nanoparticle offering that best fits your application.
| Offering | Best For | Key Differentiator |
|---|---|---|
| Standard Nanoparticles | Research, optical engineering, sensing, materials development | Broad selection of materials, sizes, surfaces, and optical properties |
| High-Concentration, Low-Endotoxin | Cell culture and sensitive biological research | 1 mg/mL, low-endotoxin, 0.22 µm membrane-filtered formulations |
| BioReady™ | Diagnostics and biomolecule conjugation | Diagnostic-focused particles, surfaces, conjugates, and kits |
| Ultra Uniform | Reference standards, metrology, imaging, plasmonics | Exceptionally narrow gold nanosphere size distributions |
Standard Nanoparticles
Our standard nanoparticle portfolio provides the broadest selection of material types, particle sizes, morphologies, surfaces, and formulations. These products are designed for applications ranging from optical engineering and sensing to materials research, catalysis, and biological research.
| Feature | What It Provides |
|---|---|
| Controlled Particle Properties | Product-specific specifications for particle size, morphology, optical properties, concentration, and other relevant characteristics. |
| Broad Material Selection | Options across gold, silver, platinum, silica, magnetic particles, and other nanoparticle platforms. |
| Surface Options | Particle-specific surfaces support applications ranging from ligand exchange and dispersion stability to biomolecule functionalization. |
| Batch-Specific Characterization | Each batch includes a Certificate of Analysis with characterization appropriate to the material and product specification. |
Explore our current Gold Nanoparticles, Silver Nanoparticles, and Platinum Nanoparticles, or contact us for help selecting another material.
High-Concentration, Low-Endotoxin Nanoparticles
For cell culture and other sensitive biological research, select gold, silver, and platinum nanoparticles are available as concentrated 1 mg/mL, low-endotoxin formulations. These materials are passed through a 0.22 µm membrane filter in a controlled environment and batch tested for endotoxin.
| Feature | Benefit |
|---|---|
| Low Endotoxin | Batch tested to meet the endotoxin specification listed for the individual product. |
| 0.22 µm Membrane-Filtered | Passed through a 0.22 µm membrane filter in a controlled environment as part of final formulation. |
| 1 mg/mL Concentration | Provides a concentrated stock for convenient dilution while minimizing the volume added to an experimental system. |
| Batch-Specific Characterization | Supplied with nanoparticle characterization and formulation information for the individual batch. |
Low-endotoxin options are identified on applicable gold, silver, and platinum nanoparticle product pages. Refer to the individual product for current size availability and specifications.
BioReady Nanoparticles
Designed for diagnostic development and biomolecule conjugation. BioReady nanoparticles provide particle surfaces, conjugates, and supporting formats for lateral flow assays and other diagnostic workflows.
| Feature | What It Provides |
|---|---|
| Conjugation-Ready Surfaces | Options for passive adsorption, covalent coupling, and affinity-based attachment, depending on particle type. |
| Diagnostic Particle Formats | Gold nanospheres, gold nanoshells, magnetic particles, and other formats selected for diagnostic workflows. |
| Conjugates & Kits | Streptavidin and other conjugated formats, along with tools that simplify assay and conjugation development. |
| Concentrated Options | Many BioReady particles are available at 20 OD for convenient dilution into diagnostic formulations. |
Developing a lateral flow assay or diagnostic conjugate?
Explore nanoparticles, conjugates, and kits designed around diagnostic development workflows.
For help selecting particle size, morphology, or conjugation strategy, see Nanoparticles for Precision Diagnostics.
Ultra Uniform Gold Nanospheres
Designed for applications where particle-to-particle uniformity matters most. Ultra Uniform Gold Nanospheres combine tightly controlled diameter with highly spherical morphology for reference standards, particle counting, microscopy, plasmonics, and other precision measurements.
| Feature | What It Provides |
|---|---|
| Narrow Size Distribution | Current standard products have TEM CV specifications of ≤5%. |
| Controlled Morphology | Highly spherical particles reduce variability in size- and shape-dependent physical and optical properties. |
| Reference Standards | Useful for particle sizing, microscopy, instrument development, and other applications requiring defined nanoparticle dimensions. |
| Particle Number Standards | Specially characterized formulations are available for applications requiring known particle number concentration. |
Need tighter control over nanoparticle size and uniformity?
Explore Ultra Uniform Gold Nanospheres for reference standards, particle counting, imaging, plasmonics, and precision nanoparticle research.
Learn more about particle uniformity, optical behavior, and reference-material applications on our Ultra Uniform Gold Nanospheres technical page.
What You Can Expect From nanoComposix
| Across Our Portfolio | What It Means |
|---|---|
| Precisely Engineered Materials | Particle properties are controlled to product-specific specifications so you know what material you are working with. |
| Batch-Specific Characterization | Products are supplied with a Certificate of Analysis containing characterization appropriate to the particle type. |
| Transparent Formulations | Surface chemistry, solvent, concentration, and other relevant formulation details are provided for standard products. |
| Development & Scale-Up Support | Our technical team can support requirements that extend beyond standard catalog particle or conjugate configurations. |
Don't see the particle or functionalization you need?
We support custom particle design, formulation, surface modification, biomolecule conjugation, characterization, and scale-up.
Custom Nanoparticle Development Custom Conjugate Development
Legacy Product Line Names
Looking for a product previously sold under the NanoXact or BioPure name? These product-line names have been retired, but the underlying nanoparticle capabilities remain part of our current portfolio. Standard nanoparticle products now carry the broad material, size, surface, and characterization options previously associated with NanoXact, while select gold, silver, and platinum products retain the concentrated, low-endotoxin formulation and processing features previously associated with BioPure.
If you are trying to replace a legacy product or SKU, contact our technical team and we can help identify the current equivalent.