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Bright fluorescent yellow microspheres are supplied in dry powder form and specifically designed with density ~1g/cc for suspension in fresh water, enabling flow visualization and analysis of fluid flow in a device. Controlled particle size ranges enable investigation of maximum particle size passing through the openings, filters and membranes.Particles exhibit a strong fluorescent response and are color stable in solution.
Other colors, sizes and grades of fluorescent particles are available:Fluorescent Polymer Particles, Beads, Microspheres
Other neutrally buoyant particles for flow visualization and PIV are available:
Microspheres for Flow Visualization and PIV (1.0g/cc)
Density: 0.99g/cc-1.01g/cc (perfect for suspension in water)
Daylight Color: Fluorescent Yellow
Fluorescent Response: Peak emission of 525nm when excited at 485nm
Particles in Size Range: >90%
Spherical Particles: >90%
Polyethylene microspheres are hydrophobic and need to be coated with a surfactant prior to suspending in water. We recommend Tween 80 Bio-compatible Surfactant.
Material Safety Data Sheet - Polyethylene Spheres, Beads, Microspheres, and Nanospheres
Fluorescent Green Polyethylene Microspheres 1.035g/cc - 38um to 500um (0.5mm)
Fluorescent Red Polyethylene Microspheres 1.090g/cc - 20um to 500um (0.5mm)
Fluorescent Polyethylene Microspheres - Yellow in Daylight, Blue-Green in UV Light 0.98g/cc - 27um to 300um
Yellow Cellulose Acetate Polymer Spheres - Large Plastic Beads ~1.3g/cc - 1.6mm and 3.0mm