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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Food & Water Nanoplastics Remediation Sign in to save

Photoinduced Force Microscopy as an Efficient Method Towards the Detection of Nanoplastics

Chemistry - Methods 2021 2 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Iris C. ten Have, Adriaan J. A. Duijndam, Ramon Oord, Hannie J. M. van Berlo‐van den Broek, Ina Vollmer, Bert M. Weckhuysen, Florian Meirer

Summary

Researchers used photoinduced force microscopy — a technique that overcomes the diffraction limit of conventional infrared spectroscopy — to detect and chemically characterize nanoplastic particles. The method revealed surface oxidation and chemical changes on polystyrene nanoplastics in salt water, demonstrating it can identify degraded nanoplastics that are too small for conventional IR detection.

Polymers
PS

Abstract Invited for this month's cover is the group of Bert M. Weckhuysen and Florian Meirer at Utrecht University (The Netherlands). The cover picture shows polystyrene nanoplastics and how they are detected with photo‐induced force microscopy. This method overcomes the diffraction limit of infrared light by employing a nano‐sized tip as detector. Oxidative degradation and chain scission occurred on the surface of the polystyrene nanoplastics in salt water, as depicted by the carbonyl and aliphatic functionalities. Detecting nano‐sized plastic particles is essential for understanding how plastic waste breaks down into smaller particles in the environment. Read the full text of their Communication at 10.1002/cmtd.202100017 .

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