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Nanoparticles: are particles that have the dimensions of no less than 1 nanometer and no greater than 1000nanometers (1 micron).

Nanospheres: are highly spherical nanoparticles. For your convenience we are also offering a selection of particles upto 10,000nanometers (10 micron). A large selection of microspheres (10 microns and larger) is available at www.Cospheric.com.