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In this technique, small microbead particles are delivered through a catheter into an artery that is supplying oxygen and nutrient-containing blood to a tumor.

Within products themselves, the Plastic Soup Foundation’s Beat the Microbead app can scan products for microplastics.

This divisive object, in all its plush, polystyrene microbead wonder, epitomizes the existential suffering of economy air travel.

The bestseller is the Clöudz Dual Comfort Microbead Travel Neck Pillow — “Dual comfort! Use it as lumbar support!” — available in more than 30 fashion iterations, including camouflage and unicorn.

DNA sequencing of this material on the slide allowed the authors to determine the position and sequence of the barcodes corresponding to each microbead.