50 nm Silver Nanospheres
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50 nm spherical silver nanoparticles are useful in applications such as biosensors, antimicrobial coatings, conductive composites, and photovoltaic devices. For cell culture and other sensitive biological applications, a low-endotoxin formulation filtered through a 0.22 µm membrane is available at 1 mg/mL.
nanoComposix provides high quality, monodisperse, and aggregation-free nanomaterials. All our products are supplied with a batch-specific Certificate of Analysis including characterization data such as TEM, DLS, Zeta, and UV-Vis.
Intended for Research Use Only. Not for use in diagnostic procedures. Contact us for custom formulations and ISO 13485/cGMP compliant materials, or bulk supply requirements.
| Overview | ||||
|---|---|---|---|---|
| Surface | Citrate | PVP | PVP (dried) | Silica Shelled |
| Description | Easiest standard surface to displace with other molecules. | Large polymer surface. Stable in a wide variety of solvents. | Powder format allows greater flexibility with solvent choice and concentration. | Greatest solvent compatibility. Preserves plasmonic properties upon deposition. |
| Solvent | 2 mM sodium citrate solution | USP Purified Water | N/A | Ethanol |
| Surface chemistry | Citrate | PVP 40 kDa | PVP 40 kDa | Silanol |
| Specifications | ||||
| Surface | Citrate | PVP | PVP (dried) | Silica Shelled |
| TEM Diameter | 50 ± 4 nm | 50 ± 4 nm | 50 ± 4 nm | Core: 50 ± 4 nm Shell: 20 ± 5 nm |
| CV | ≤ 15% | ≤ 15% | ≤ 15% | ≤ 15% (total diameter) |
| Endotoxin Content | ≤ 1 EU/mL (AGCB50) | ≤ 1 EU/mL (AGPB50) | — | — |
| Documents | ||||
| Surface | Citrate | PVP | PVP (dried) | Silica Shelled |
| Example Certificate of Analysis (CoA) | Download | Download | Download | Download |
| Safety Data Sheet (SDS) | 0.02 mg/mL (AGCN50)
1 mg/mL (AGCB50) |
1 mg/mL (AGPB50) | Powder (AGPD50) | 1 mg/mL (AGSH50) |
| Storage & Handling | Download | Download | Download | Download |
| Expected Ranges | ||||
| Surface | Citrate | PVP | PVP (dried) | Silica Shelled |
| Hydrodynamic diameter (DLS) | TEM diameter + 0–20 nm | TEM diameter + 5–25 nm | N/A | TEM diameter + 5–70 nm |
| Zeta potential | ≤ –25 mV | ≤ –20 mV | N/A | ≤ –20 mV |
| pH of solution | 7.0–8.0 | 5.5–7.5 | N/A | N/A |
| Peak wavelength (λmax) | 410–430 nm | 410–430 nm | 410-430 nm (if redispersed) | 440–450 nm |