Lab261

Lab261 is a U.S.-based manufacturer of polymer microspheres, nanoparticles, and microplastics for advanced research and analytical applications. Designed and produced in Palo Alto, California, its particles are available in materials including polystyrene, PMMA, polyethylene, polypropylene, PET, PVC, Nylon, polycarbonate, polyurethane, and PTFE. Product options span approximately 15 nanometers to more than 750 micrometers, with spherical, irregular, fragmented, and other morphologies.

The catalog includes plain, functionalized, color-dyed, and fluorescent polystyrene and PMMA particles, as well as polymer microplastics, luminescent nanospheres, zeta-potential microspheres, and selected NIST-traceable size standards. These products support applications such as imaging, microscopy, flow cytometry, instrument calibration, colloid science, and environmental microplastics research.

Lab261 also provides custom particle development, with options for size, polymer, morphology, surface chemistry, labeling, and encapsulation. A key capability is surfactant control, including true surfactant-free and ultra-low-residual formulations, supplied as suspensions or dry powders. The company offers particle characterization and a Certificate of Analysis with every order, alongside direct technical support and domestic shipping.