Grow, Read, Detect.

The CERTUS System provides real-time monitoring
through simultaneous enrichment and detection.

The CERTUS System Technology

CERTUS Detection Tubes are agitated horizontally in a temperature-controlled chamber that is optimal for the incubation of the selected pathogen species.
A magnetic field is engaged to the Detection Tubes to form a pellet composed of bacteria “sandwiched” between antibodies conjugated to both magnetic and SERS particles.
Each tube is interrogated by a laser hitting the pellet to elicit a Raman spectra. The strength of the Raman spectra is proportional to the bacterial load and a proprietary algorithm monitors pathogen presence and growth versus time. 
The CERTUS System can accurately detect target pathogen as enrichment is taking place thus enabling faster time to result.

Simple, Safe, Smart Pathogen Detection

Simplified Workflow

Our goal is to empower you so you can to control your environmental sampling program, turnaround time, and costs. With 3 simple steps to test results, anyone can quickly perform environmental monitoring with the CERTUS System.

Bio-Contained System

Confidently perform pathogen detection in-house with CERTUS’s fully bio-contained system.

The Bio-Lock Sampling Swab secures the environment from accidental contamination and enables you to move testing onsite for significantly faster results and reduced costs with no need for a laboratory or complicated technical training.

Real Time Monitoring

Grow, Read, Detect provides real-time monitoring which means as soon as the pathogen is enriched to a detectable level, continuous surface enhanced raman spectroscopic (SERS) reading of the samples provides immediate detection. The CERTUS System then sends instant alert messages to key stakeholders via text and email allowing for prompt remediation.

All in-one. All in-house.

With the ability to detect Listeria spp. from most surfaces, the CERTUS system allows you to perform: analysis,  hygiene remediation of presumptive positive test sites, documentation and reporting – all conveniently managed and easy to use.

Research & Development

The CERTUS pathogen detection system was designed and developed through strategic collaborations.  The core SERS technology and instrument design is based on innovative technology exclusively licensed from BD (Becton, Dickinson and Company)  for applications in the food safety market. Assay reagent and media development is conducted in collaboration between CERTUS and UK-based Solus Scientific.  Solus has proven scientific expertise in the development of immunoassay-based tests specific for the food pathogen testing market with their own line of AFNOR and AOAC validated ELISA tests and applies that industry expertise and scientific integrity to the CERTUS system.


CERTUS’s homogenous no-wash assay format allows for real time detection of Listeria as shown to the left where signal is plotted versus time in culture.  Pre-measured selective growth media is provided with the Detection Kit.

The capability of the CERTUS System to simultaneously grow and detect Listeria spp. allows for early identification of problem environmental sites.


The road map of CERTUS product development in the short term is to expand the menu of environmental targets to include Salmonella and shiga-toxin producing E. coli (STEC).

Longer term, CERTUS will expand its product line to include food matrices.


CERTUS technology is covered under an exclusive license from BD (Becton, Dickinson and Company)   for the commercialization of food safety products based on SERS nanoparticle technology, which has utility across many monitoring and diagnostic applications. BD’s exclusive license to CERTUS also includes technology to enable pathogen detection in a bio-contained tube during enrichment so that the facility where the testing is conducted is not exposed to enriched pathogens.  BD continues to work with partners to further develop the SERS technology and is currently the supplier of SERS nanoparticles used in CERTUS products.