Colloidal Gold Nanoparticle Characterization Service
This service provides a focused, side-by-side characterization of your colloidal gold nanoparticle or conjugate compared to a nanoComposix BioReady reference material. It is designed for diagnostic assay developers who need objective data to understand gold particle behavior, assess supplier risk, or troubleshoot performance issues. Nanoparticle characterization data generated through this service supports early-stage verification, validation, and risk assessment activities.
Included Analyses
- Dynamic Light Scattering (DLS): hydrodynamic diameter, size distribution, and polydispersity
- UV-Visible Spectroscopy (UV-Vis): plasmon peak position, peak width, and absorbance characteristics
- Direct comparison to the closest nano Composix BioReady gold nanoparticle or conjugate
- Qualitative assessment of colloidal stability and aggregation risk
How it Works
- Fill out the submission form.
- Once your order has been accepted, mail us your sample.
- nanoComposix performs DLS and UV-Vis analysis and compares your material to a BioReady reference.
- You receive a written characterization report within 10 business days.
Why Characterize Your Nanoparticles?
- Alternate supplier evaluation for diagnostic assays
- Assay troubleshooting and root-cause analysis
- Lot-to-lot variability assessment
- Pre-verification characterization under ISO 13485 and GMP expectations
Frequently Asked Questions
Who should use colloidal gold nanoparticle characterization?
Diagnostic assay developers and IVD manufacturers investigating whether gold particle properties may be contributing to assay variability, inconsistent signal, or conjugation issues.
What problems can gold nanoparticle characterization help identify?
Gold nanoparticle characterization can identify aggregation, size distribution changes, and stability issues that may lead to inconsistent test lines, poor conjugation performance, or non-specific binding.
How much sample is required for colloidal gold nanoparticle characterization?
Typical sample requirements are 0.5–1.0 mL, depending on particle concentration, with final volume confirmed during service intake.
What is included in a colloidal gold nanoparticle characterization report?
The report includes DLS and UV-Vis data, comparison to a reference gold nanoparticle, and a summary interpretation of colloidal stability and key findings.
How long does colloidal gold nanoparticle characterization take?
Characterization reports are delivered within 10 business days of receiving the sample and order acceptance.
Does colloidal gold nanoparticle characterization support regulatory activities?
Yes. The data supports early-stage verification and risk assessment activities aligned with ISO 13485 and FDA guidance for changes to critical assay components.