Janus Particles – Properties and Applications

Bichromal (half-white half-black or any other color) Microspheres, Janus Particles

What are Janus Particles? Named after two-faced Roman god Janus who looks to both the future and the past, Janus particles are typically microscopic spheres composed of two different regions. Originally the term “janus particles” was used in reference only to particles that had a hydrophobic surface on one hemisphere and a hydrophilic surface on another. The first “Janus…

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Microspheres Simulate Contamination in Self-Cleaning Gecko-Inspired Adhesives

Image of Self-cleaning Adhesive of Gecko's Toes

When choosing a controlled tracer particle for process development and troubleshooting, there are many benefits when microspheres simulate contamination. Colored and fluorescent microspheres provide a highly visible marker of controlled size and shape, allowing scientists and engineers to observe and troubleshoot the process in order to best understand where the contamination is coming from, develop best protocols for preventing…

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Reflective Billboard – Creative Outdoor Billboard for McDonald’s

Bichromal (half-white half-black or any other color) Microspheres, Janus Particles

What a creative alternative to power-hungry digital displays. This large outdoor billboard is totally environmentally friendly because compared to LCD and LED displays that run on electricity, this display takes no energy to run. This creative outdoor billboard is made with reflective tape, visible only when illuminated by headlights in the darkness, created by ad agency Cossette.? To promote…

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Custom Janus Particles, Microspheres, Microbeads – Bichromal Particles

Custom Janus Particles - Ceramic

What are Custom Janus Particles? Janus particle is anisotropic and refers to a particle, typically of spherical shape, with two hemispheres which may vary in color, optical properties, surface tension, electrostatic charge, magnetic response, conductivity, fluorescence, reflectivity and more. Custom Janus Particles Manufacturing Cospheric LLC uses a patented process to offer a unique capability of manufacturing custom Janus particles…

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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.

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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.

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BioCompatability of Metal Coated Spheres

For those scientists who are looking to use silver coated materials such as silver coated microspheres in biomedical applications, it is important to understand whether they are bio-compatable. A selection of abstracts and article references related to the biocompatability of silver follow:

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