Custom Assay Development
When the Standard Menu Isn't Enough
Not every research question fits a standard kit. When your target, species, or sample type falls outside our existing catalog, R&D Systems scientists work with you to find the right solution, whether that means a single-analyte ELISA or a custom Simple Plex or Luminex multiplex panel. We can modify an existing immunoassay, qualify performance in a new species or sample type, or build a new assay around your specific requirements.
Backed by more than 30 years of immunoassay development experience, we support every stage of the process, from early feasibility work through validation and full-scale manufacturing for preclinical and clinical studies.
How We Can Help
- Assay Modification: Adapt an existing assay to a new sample type, species, or performance requirement.
- Species Testing & Qualification: Validate assay performance in a species beyond the standard menu.
- Custom Assay Development: Build a new assay from the ground up around your specific target and sample requirements.
Choose Your Platform
Custom ELISA
Draw on decades of expertise behind Quantikine ELISA Kits, the industry’s gold standard and most referenced ready-to-use ELISAs, to support new target development and assay modifications. For scalable assay supply, bulk packaging and lot reservation services are also available.
Custom Luminex Assays
Rely on our extensive expertise developing over 650 Luminex multiplex assays and our broad in-house library of antibodies and proteins to support custom assay development and panel optimization. Our scientists can add new targets to existing panels, resolve bead region conflicts, or build fully custom multiplex panels tailored to your research needs.
Custom Simple Plex Assays
Lean on our extensive expertise developing and validating 400+ Simple Plex assays to create custom solutions tailored to your research needs. Our scientists can develop custom assays and panels on closed cartridges or support flexible assay development using the 48-Digoxigenin open cartridge.
"Mellitus was looking for a development partner to assist the Company in converting its research assay to a commercially viable in vitro diagnostic. We had firsthand knowledge of the exquisite technical expertise residing within R&D Systems... The team is timely, dedicated and responsive. We remain confident that the Mellitus Assay will complete product development within our timelines, thanks to our Development Partner, R&D Systems."
— Bruce H. Phelps, Technology Consultant
Why Partner With R&D Systems
- Tailored Solutions: Products built around your unique research goals and requirements.
- Scientific Expertise: Decades of immunoassay development and regulatory experience, from discovery through companion diagnostics.
- Responsive Support: A collaborative, consultative approach at every milestone, with data reviews to keep your project on track.
- Design Flexibility: Scalable manufacturing capabilities with the agility of a specialized team.
Ready to talk about your project?
Resources
Immunoassay Essentials
Learn about the 4 essentials of immunoassay quality- spike recovery, dilution linearity, specificity and consistency.
ELISA Guide
A clear, comprehensive guide to ELISA kits. Learn about different ELISA formats, controls, best practices, and troubleshooting.
Luminex Assay Guide
The Luminex Assays User Guide offers insights on choosing the right multiplex assay and ensuring consistent, reliable performance.
Simple Plex Assay Guide
Simple Plex assays are hands-free, single or multi-analyte with no cross-reactivity, and reproducible even across multiple labs.