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Bioplastic design using multitask deep neural networks

Communications Materials 2022 49 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Christopher Kuenneth, Christopher Kuenneth, Jessica Lalonde, Babetta L. Marrone Carl N. Iverson, Rampi Ramprasad, Ghanshyam Pilania, Ghanshyam Pilania, Carl N. Iverson, Rampi Ramprasad, Babetta L. Marrone

Summary

Researchers used deep neural networks trained on nearly 23,000 polymer chemistries to identify 14 biodegradable bioplastics — made from biological sources rather than petroleum — that could replace the seven most commonly used synthetic plastics, which account for 75% of global plastic production. This AI-driven approach accelerates the search for eco-friendly plastic alternatives that naturally break down rather than fragmenting into persistent microplastics.

Abstract Non-degradable plastic waste jeopardizes our environment, yet our modern lifestyle and current technologies are impossible to sustain without plastics. Bio-synthesized and biodegradable alternatives such as polyhydroxyalkanoates (PHAs) have the potential to replace large portions of the world’s plastic supply with cradle-to-cradle materials, but their chemical complexity and diversity limit traditional resource-intensive experimentation. Here, we develop multitask deep neural network property predictors using available experimental data for a diverse set of nearly 23,000 homo- and copolymer chemistries. Using the predictors, we identify 14 PHA-based bioplastics from a search space of almost 1.4 million candidates which could serve as potential replacements for seven petroleum-based commodity plastics that account for 75% of the world’s yearly plastic production. We also discuss possible synthesis routes for the identified promising materials.

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