TDM Immunoassays
Our assays are designed for the monitoring of levels of therapeutic drugs in human serum or plasma. The concentrations of the drug can be used as an aid in management of patients treated with that drug. We manufacture and sell two types of TDM reagents.

Our more traditional Innofluor product line uses the Fluorescence Polarization (FPIA) method for the quantitative determination of total drug in serum. Our newest product line, Quantitative Microsphere System (QMS) utilizes our world-leading microparticle technology to develop a wide-range of particle-enhanced turbidimetric immunoassays for application on general chemistry analyzers. Our extensive R&D pipeline for both product lines is tailored to addressing unmet market needs in the following focused therapeutic areas: Asthma therapy, cardiology, epilepsy and pain management, infection and organ transplantation. For OEM partnerships, see our Contract Assay Development page.

Particle Technology
As a trusted supplier to the scientific community with more than 25 years of microparticle technology experience, our high quality synthetic polymer microparticles are used as a raw material for molecular biology applications. Whether for the manufacturing of immunodiagnostic assays or systems for nucleic acid isolation, our microparticles are used by the world’s leading clinical and molecular diagnostic companies as an essential building block of their reagents. In fact, our microparticles are the foundation of our QMS TDM Immunoassays.

Antibodies/Antigens
Seradyn also further enhances its value to our partners by supplying monoclonal antibodies and recombinant antigens. Our antibodies and antigens exhibit excellent reproducibility, high sensitivity and long-term stability. We shorten development time and help you speed your products to market.

Our Indianapolis ISO 13485 Certified Facility is FDA registered for in-vitro diagnostics services and is cGMP compliant. We are also certified to MHLW Ordinance 169, 2004.

Product Quick Links
We are currently transition to www.thermo.com, however, not all products are currently on the Thermo Scientific Web site. To make searching for our products easier, please click on the links below and you will directed to that particular product's web page.

Particle Technology (Seradyn and Duke Scientific particle products)
QMS® Turbidimetric Immunoassays
Innofluor® Fluorescence Polarization Immunoassays
Antibodies/Antigens
Serology/Slide Agglutintion Assays
Frequently Asked Questions

Company History
When the merger between Fisher Scientific and Thermo Electron occurred in November 2006, Seradyn, Inc. became a subsidiary of Thermo Fisher Scientific Inc. Thermo Fisher Scientific (NYSE: TMO) is the world leader in serving science, enabling our customers to make the world healthier, cleaner and safer. With annual sales of more than $9 billion, we employ 30,000 people and serve over 350,000 customers within pharmaceutical and biotech companies, hospitals and clinical diagnostic labs, universities, research institutions, government agencies as well as environmental and industrial process control settings. Serving customers through two premier brands, Thermo Scientific and Fisher Scientific, we help solve analytical challenges from routine testing to complex research and discovery.

About Us
From its early days as a division of Dow Chemical, to its current position as a subsidiary of Thermo Fisher Scientific Inc., Seradyn, Inc. has developed a reputation as being a world-leader in designing and manufacturing Therapeutic Drug Management (TDM) homogeneous immunoassays and microparticles.