Duke Scientific

Duke Scientific, now a brand under Thermo Fisher Scientific, is a pioneer in the development and manufacture of uniform polymer microspheres and particle size standards. Founded in 1971, the company established itself as a leader in providing NIST-traceable particles used for the calibration of analytical instruments such as particle counters and flow cytometers. Their extensive product line includes fluorescent, dyed, and magnetic beads that are critical for applications in clinical diagnostics, biotechnology research, and industrial quality control. These microspheres serve as essential tools for validating the accuracy of measurement systems in both healthcare and environmental monitoring. Following its acquisition by Thermo Electron in 2006, Duke Scientific's technologies were integrated into the Thermo Scientific portfolio, continuing to support global laboratory standards.