Colored plastic beads can be a useful addition to the classroom in creating visual demonstrations of various procedures or internal biological systems, such as interactions between proteins and the proliferation of disease or a virus as it spreads through the body. They come in a variety of sorted colors, with precisely cut holes and uniform sizing. Plastic beads are economical, inert, and durable under conditions of constant, heavy use.

VWR® Anti-Evaporation Spheres for Water Baths

Supplier: VWR Collection

Lightweight, economic PP spheres which form a blanket on the liquid surface. Spheres have 20 mm Ø, 275 spheres cover approximately 1000 cm².

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PTFE balls, BOLA

Supplier: Bohlender

Made from solid PTFE, with smooth surface.

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Anti-evaporation spheres for water baths

Supplier: GRANT INSTRUMENTS

Lightweight, economic PP spheres which form a blanket on the liquid surface. Spheres have 20 mm Ø, 275 spheres cover approximately 1000 cm².

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Iodination beads, Pierce™

Supplier: Thermo Fisher Scientific

Pierce™ Iodination beads are Ø 3 mm polystyrene beads that are coated with an oxidising reagent, which provides efficient activation of ¹²⁵I for protein or peptide iodination procedures.

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Latex beads, polystyrene

Supplier: Merck

The latex bead suspensions are composed mainly of polymer particles and water.

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Spheres for water baths, Clifton®

Supplier: NICKEL ELECTRO

Hollow spheres are ideal for use as a blanket on the top of open tanks of water. A single layer of spheres covers 91% of the liquid surface trapping air in the gaps which adds to the thermal insulation properties. Spheres have 20 mm Ø.