Quantifying mechanical abrasion of AgNP nanocomposites: influence of AgNP content on abrasion products and rate of microplastic production

Joana Marie Sipe; William Berger; Nathan Bossa; Melissa Chernick; Keana Scott; Alan R. Kennedy; Mark Ballentine; Treye Thomas; Christine Ogilvie Hendren; Mark R. Wiesner

doi:10.1039/d3en00888f

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Quantifying mechanical abrasion of AgNP nanocomposites: influence of AgNP content on abrasion products and rate of microplastic production

Environmental Science Nano 2024 3 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.

Joana Marie Sipe, William Berger, Nathan Bossa, Melissa Chernick, Keana Scott, Alan R. Kennedy, Mark Ballentine, Treye Thomas, Christine Ogilvie Hendren, Mark R. Wiesner

Summary

When silver nanoparticle (AgNP) composite plastics are abraded — mimicking normal use wear — they release microplastic fragments that still contain embedded silver nanoparticles, with release rate depending on how much AgNP was incorporated. This matters because silver nanoparticles have known antimicrobial and potentially toxic properties, so products designed with AgNPs for their antibacterial benefits may inadvertently create a combined microplastic-nanomaterial pollution hazard.

Abrasion study of Ag–PETG nanocomposites helps to estimate how much AgNP microplastics are released from composite products during use or into the environment during their lifecycle.

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