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

Chemistry - Methods 2021 30 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Ina Vollmer, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Bert M. Weckhuysen, Adriaan J. A. Duijndam, Iris C. ten Have, Iris C. ten Have, Iris C. ten Have, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Florian Meirer Florian Meirer Florian Meirer Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Iris C. ten Have, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Florian Meirer Florian Meirer Ramon Oord, Ramon Oord, Ramon Oord, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Adriaan J. A. Duijndam, Hannie J. M. van Berlo‐van den Broek, Hannie J. M. van Berlo‐van den Broek, Hannie J. M. van Berlo‐van den Broek, Bert M. Weckhuysen, Hannie J. M. van Berlo‐van den Broek, Hannie J. M. van Berlo‐van den Broek, Ramon Oord, Hannie J. M. van Berlo‐van den Broek, Bert M. Weckhuysen, Ina Vollmer, Ina Vollmer, Ina Vollmer, Bert M. Weckhuysen, Florian Meirer Bert M. Weckhuysen, Bert M. Weckhuysen, Bert M. Weckhuysen, Florian Meirer Florian Meirer Ina Vollmer, Florian Meirer Florian Meirer Ina Vollmer, Florian Meirer Florian Meirer Florian Meirer Florian Meirer Bert M. Weckhuysen, Bert M. Weckhuysen, Florian Meirer Bert M. Weckhuysen, Florian Meirer

Summary

Researchers demonstrated photoinduced force microscopy as an effective method for detecting and chemically characterizing individual nanoplastic particles, overcoming limitations of conventional techniques that lack either sufficient spatial resolution or spectroscopic capability at the nanoscale.

Polymers

Abstract The degradation of plastic waste in aquatic environments, leading to plastic particles at the micro‐ and nanoscale is of growing concern. However, conventional analytical techniques either lack sufficient spatial resolution or the necessary spectroscopic means to investigate individual plastic nanoparticles. Both are however necessary to understand how macro‐ and micro‐sized plastic particles break down into nanometer‐sized particles. Here we show that a hybrid analytical technique, combining the spatial resolution of atomic force microscopy (AFM) with the chemical information from infrared (IR) spectroscopy, meets these requirements. We studied nanometer‐sized particles of polystyrene (PS), a plastic that is extensively used worldwide. We demonstrate that we can detect and quantify these so‐called nanoplastics down to 20 nm in size and discuss their physicochemical properties. We show that in saline aqueous environments, in the absence of light, oxidative degradation and chain scission are the main mechanisms to form and degrade PS micro‐ and nanoplastics.

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