Size & distribution
Nominal value, assigned value, method, tolerance, standard deviation or CV and uncertainty.
Commercial architecture
Choose a family before choosing a nominal size.
The current Applied Physics silica portfolio spans prepared sub-200 nm dispersions, larger microsphere dispersions, dry powders, surface-modified materials, optical-response products and finished contamination-wafer standards.
| Family | Current public range / form | Best initial fit | Technical gate |
|---|---|---|---|
| Sub-200 nm dispersion | 20–200 nm silica — public page identifies 10 wt% and aqueous/ethanol options | Prepared nanoscale silica for research, optical or metrology evaluation | Confirm size, medium, concentration, tolerance and certificate |
| Larger microsphere dispersion | 250–1000 nm microspheres — public page identifies 10 wt% | Prepared spherical silica above the smallest nano range | Confirm actual size points, method and medium |
| Sub-200 nm dry powder | 20–200 nm dry silica | Carrier-free material when redispersion is controlled | Validate powder handling and effective size after preparation |
| Broader dry powder | 100 nm–2.5 µm dry silica | Broader formulation and research range | Confirm size availability, tolerance and packaging |
| Functionalized / coated | Hydrophobic, amine and polymer-coated pathways | Matrix compatibility, coupling or surface-specific research | Define functional group, coverage and verification |
| UV-Vis-oriented | UV-Vis silica particles | Defined optical-response investigation | Identify wavelength, instrument and response requirement |
| Finished wafer standard | Silica contamination wafer | Inspection-ready deposited artifact | Define wafer, particle sizes, deposition and tool |
Configuration fields
The product family is only the first decision.
Form & medium
Aqueous, ethanol or dry; concentration, additives, pH, density and package volume.
Surface & chemistry
Native, hydrophobic, amine, PEG, PVA, polyimide or another controlled treatment.
Evidence & delivery
Certificate, traceability, SDS, shipping destination, packaging, lead time and custom requirements.
Selection map
Use the family selector when the request is not yet quotable.
The selector asks for application, size, format, medium and surface needs. It produces a conservative starting pathway and identifies the evidence still missing.
Worldwide fulfillment
Plan international delivery as part of the configuration.
Applied Physics supports customers worldwide, subject to destination, carrier, product form and regulatory restrictions. Dry powder, ethanol dispersion and larger liquid volumes may require different packaging, documentation and transport planning. Provide the ship-to country and required date at the beginning of the inquiry.
Questions engineers ask
Frequently asked questions
Are all sizes shown on family pages continuously stocked?
Do not assume so. Current availability, tolerance, medium, concentration, volume and lead time must be confirmed in a quotation.
Can Applied Physics provide custom silica configurations?
Custom requirements can be evaluated, but feasibility, minimum quantity, tolerance, characterization and schedule depend on the exact request.
Sources and verification
Technical basis
- Applied Physics 20–200 nm silica — Current sub-200 nm public product family.
- Applied Physics 250–1000 nm silica — Current larger microsphere public family.
- Applied Physics wafer standards — Current finished artifact family.
Commercial specifications should be confirmed against the current Applied Physics quotation, certificate, lot documentation and product page before purchase or protocol use.
Continue the research
Related technical guidance
Selection guide
Write the full requirement.
Technical brief
Send a structured request to Applied Physics.
Applications
Select from the receiving use case.
Applied Physics technical pathway
Need a particle specification reviewed?
Send the target size, medium, concentration, application, certificate requirements and shipping destination. Applied Physics can evaluate the appropriate silica family or custom pathway.