B2.4 - Nanoelectromechanical System Fourier Transform Infrared Spectroscopy (NEMS-FTIR) for Nanoplastic and Polymer Degradation Analysis
- Event
- SMSI 2025
2025-05-06 - 2025-05-08
Nürnberg - Band
- Lectures
- Chapter
- B2 - MEMS Resonators
- Author(s)
- J. Timarac-Popovic, A. Giesriegl, H. Besic, S. Schmid - TU Wien, Vienna (Austria), J. Hiesberger, N. Luhmann, J. Lafleur - Invisible-Light Labs GmbH, Vienna (Austria)
- Pages
- 87 - 88
- DOI
- 10.5162/SMSI2025/B2.4
- ISBN
- 978-3-910600-06-5
- Price
- free
Abstract
We introduce a novel application of photothermal infrared spectroscopy based on nanoelectromechanical systems (NEMS), integrated with a commercially available FTIR spectrometer (NEMS-FTIR). We successfully detected 1 ng of polystyrene (PS) and 1 ng of polypropylene (PP) nanoplastic particles with diameters of 100 nm and 54 nm, respectively. As a case study, we detected small amounts of degradation products originating from plastic tubing. The technique enabled high-resolution spectral identification of samples from microliter to nanoliter volumes on NEMS chips.