Contract Lateral Flow Assay Development

Contract rapid diagnostic test development is at the core of all that we do at DCN.  Our cross-functional team of scientists and engineers will assist you in the development of your entire product, from concept to commercialization.

DCN develops custom lateral flow tests.

We ensure that the test meets your required performance specifications and that the product satisfies the needs of the end user.  As well as developing the assay itself, DCN’s integrated engineering team will design, develop and integrate your entire device, including cassettes, sample handling devices, and reader systems. As a result, we represent a single resource that can manage and deliver completely validated rapid diagnostic tests.

Example of a rapid diagnostic test in a cassette with a sample handling device


DCN is the go-to company for the design and development of assays that have tough specifications, including:

  • High Sensitivity
  • Quantification
  • Multiplexing
  • Tough Sample Matrices
  • Reader Integration


Our staff is uniquely experienced in developing lateral flow and flow through assays around a variety of conjugate labels and reporting requirements, including:

  • Colloidal Gold
  • Cellulose Nanobeads (NanoAct™)
  • Fluorescent Latex
  • Paramagnetic Particles
  • Up-Converting Phosphors
  • Novel Fluorescent Labels
  • Quantitative Assays
  • Qualitative Assays (yes/no)


Our cross-functional team of assay development and engineering professionals allows us to assist you in the development of your entire rapid diagnostic test, from concept to commercialization.

Our staff has unparalleled experience in developing the highest performing assays in lateral flow markets, ranging from medical diagnostics to veterinary, food science, bio-defense, agricultural and environmental health tests.

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DCN operates under ISO 9001:2015 and ISO 13485:2016. All of our development programs are done under Design Controls, and all production activities for reagents, components, assays and electronics are performed under our EN 13485 system.

Product Development Process


Feasibility & Prototyping

Reagent and materials selected, and functional prototype system created.


Optimization & Performance Verification

Fully verified assay system ready for transfer to manufacturing.


Scale Up & Manufacturing Transfer

Entire system transferred to manufacturing at client site or contract manufacturer.


Validation & Launch

Validation lots produced and product ready to launch.

DCN Exclusives

DCN has exclusive access to a variety of reagents, materials, and technologies through our extensive partnerships. Using these technologies, we make products that stand out from the rest and succeed in the marketplace.


DCN Colloidal Gold

  • High-performance formula
  • Conflict Mineral Free
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NanoAct™ Cellulose Nanobeads

  • High-performance particles for visual readout assays
  • High-intensity color for high sensitivity tests
  • Multiple colors available
  • Increased sensitivity and lower CV’s in many assays than traditional labels
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Lateral Flow Arraying Technology – Symbolics™

  • Generate dense pixel arrays on lateral flow membranes
  • Applications include multiplexing, quantitation, generation of letters and symbols
  • Access the Symbolics patent portfolio for market protection
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DCN Verified Partner Network™

Giving you options at all critical moments throughout development with our trusted providers, while offering our guidance and expertise to create the right partnership for your product needs.

Our Verified Partner Network™ of select partners and collaborators provides our clients with easy access to cutting-edge technologies and expertise that facilitate development and production of the highest quality product. Interested in joining our network? Ask us how.

DCN Options Assurance

To deliver the highest quality products and services, we believe in providing options to our clients in the selection of components, suppliers, and manufacturers for the job.

We combine in-house expertise on the latest technology with our network of high-quality suppliers and manufacturers to get you the best quality product for the marketplace.

We do not believe in one-size fits all approaches for our clients.

Our goal is to provide our clients with the right mix of advice, guidance and listening to be able to design, develop and deliver the right product for your application.

Your input defines the approach to the program and the method by which we approach the problem at hand.

If you use us to develop your product, you own the product. Throughout the process we adhere to strict transparency and integrity guidelines, keeping knowledge and intellectual property in your hands.

Develop Your Assay