We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Nanoplastics Can Build Themselves
Summary
Scientists developed a new computer modeling method that lets tiny plastic particles (nanoplastics) "build themselves" from scratch, forming naturally varied shapes and sizes instead of forcing them into a predetermined mold. This matters because having more realistic computer models of nanoplastics helps researchers better study how these particles might behave in the environment and in our bodies, which is a key step toward understanding their potential health risks. This study is a methods/modeling advance, not a direct health finding—it's a tool to help future research on nanoplastic toxicity be more accurate.
To understand nanoplastics through modeling, e.g., to assess their toxicity and environmental impact, reliable starting structures are required. In this study, we present a new approach to generate nanoplastic particles from classical molecular dynamics simulations. Starting with the initial aggregation of monomer units and allowing for their subsequent growth into polymer strands yields stable aggregates with polymers of diverse length, avoiding the need to define the number of polymer units with a set length a priori . The generated particles are compared to existing model nanoplastics and show agreement in terms of structural characteristics and energetics. The novel approach is computationally efficient and allows for a greater diversity of structures than approaches with predefined chain lengths.