Everything about microspheres and research utilizing precision spherical particles.

Negatively-charged Yellow Microparticles – Back in Stock

Cospheric’s neutrally-buoyant highly charged yellow microspheres have a strong negative charge and are used by scientists in medical technology, biotechnology, applied physics and research. Precise particles with known density of 1.0g/cc that behave in a known way are useful as a model particles in simulation experiments.? Particles in a range of diameters from 5micron to … Read more

PIV Seeding – Microparticle Recommendations

Flow Visualization can best be accomplished with colored or fluorescent tracing particles of the same density as the fluid being studied. Very bright fluorescent micro-particles are available in densities of 1g/cc these offer not only bright testing under daylight conditions, but also the option of illumination with lasers or uv lights for increased system contrast.

Silane and Fluorochemical Coated Glass Spheres

The following products are offered in both Silane and Fluorochemical Coating.
P2011SL 3-6um mean diameter solid soda lime glass
P2015SL 8-12um mean diameter solid soda lime glass
P2050SL 35-45um mean diameter solid soda lime glass
P2075SL 65-75um mean diameter solid soda lime glass
P2453BTA 40-60um mean diameter solid barium titanate glass with aluminum shell.

Density Marker Beads

Materials of Microspheres

Density marker beads offer enable excellent stratification, and bright coloration for high visibility with the unaided eye. Density marker beads of accurately known mass density are generally used as an external marker to facilitate the monitoring of the density gradient shape and range. Historically density calibration beads in the size ranges of 212-250um or 250-300um are used.

Calculating microspheres per gram

During scientific experiment design and analysis it is common to need to know the number of spheres per gram of dry material. We have put together the table below to help speed up the process.

Monodisperse Silica Nanospheres and Microspheres – Dry Powder

Silica nanoparticles and nanospheres are now available in distributions of less than 10% CV in the sizes of 0.25 micron, 0.5micron, 0.75 micron, 1.0 micron, 4 micron and 8 micron.

Microbeads for Fish Egg Simulation: Dispersion and Recruitment

Microbeads for Fish Egg Simulaton

Scientists who study fish require artificial micro-particles to simulate fish eggs and their behavior in water. In order to accurately simulate the fish eggs it is important to use particles of the proper size and buoyancy/density. Particles with accurate size ranges and densities are now available.

Microspheres as Bond Line Spacers in Epoxies

Microspheres as Bond Line Spacer

Spacer Grade Glass Microspheres are presently used in gas plasma displays, automotive mirrors, electronic displays, flip chip technology, filters, sporting goods equipment, calibration standards and transformer manufacturing. Every day engineers are finding new and innovative uses for bond line spacers.

High Density Glass Microspheres

Barium Titanate Glass microspheres are high density solid glass spheres. At a Density of 4.5g/cc these solid glass spheres can be used for many scientific applications where high density and optical clarity is needed. In addition to high density they also offer an index of refraction of more than 1.9.