Accurate Modeling of Viruses – Spherical Particle Shape, Size, and Density

Spherical Particle Shape of Coronavirus from CDC

Spherical Particle Shape of Viruses and Droplets: Due to the global pandemic, there has been a big focus on Coronavirus research and a lot of pressure for researchers and scientists to understand how Coronavirus spreads, as well as how we can effectively stop that spread by implementing effective cleaning protocols, prevention of respiratory droplets traveling, disinfecting of surfaces, or…

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Significance of Density of Powders: Bulk Density vs. True Particle Density

Density of Powder - How to Measure Accurately

What is the density of material? Before we start talking specifically about measuring the density of powders, let’s look at the concept of measuring density in general. What does “density” mean? According to Encyclopedia Britannica, density is defined as mass of a unit volume of a material substance. The formula for density of a substance is d=m/V, where d…

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3 Scenarios When Density of Microspheres Matters in Research

Does Density of Microspheres Matter for Fluid Suspension?

When is the density of microspheres important? Density of microspheres controls the buoyancy of each particle and its behavior in a system or process. Let’s look at three scenarios: (1) suspension of microspheres in a specific fluid, (2) fluid flow, performing flow visualizations, or particle image velocimetry, and (3) simulation or modeling of objects with specific density.

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Suspension of Hydrophobic Particles in Aqueous Solution – Density Gradients

Hydrophobic Particles in Solution

Fortunately, there is a simple way to overcome the hydrophobic effect. It is called a surfactant, a detergent, or simply ?soap.? Surfactant is a magical molecule that has both hydrophobic and hydrophilic properties, which coats the particles and helps them mix into water. The same mechanism applies when we use soap to wash greasy dishes or stained clothes.

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Matching the Density of Particle and Fluid for PIV Applications

Product Code: UVPMS-BG-1.00 (Cospheric LLC) Fluorescent Microspheres Precision Density of 1.00g/cc

Density of particle vs. density of fluid in particle image velocimetry: Many flow visualization experiments are done in water but there are a variety of other liquids and even water-based solutions that will have differing densities whose velocity fields are being mapped or will be in the future. Therefore, having seed particles to match these differing densities is important…

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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 500micron(0.5mm) are currently back…

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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.

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