We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
B2.4 - Nanoelectromechanical System Fourier Transform Infrared Spectroscopy (NEMS-FTIR) for Nanoplastic and Polymer Degradation Analysis
Summary
Researchers developed a highly sensitive technique combining nanoelectromechanical systems with infrared spectroscopy (NEMS-FTIR) that can detect as little as 1 nanogram of polystyrene or polypropylene nanoplastic particles as small as 54 nm in diameter. This breakthrough in detection sensitivity could greatly improve researchers' ability to identify and characterize nanoplastics — the tiniest and hardest-to-detect form of plastic pollution — in environmental and biological samples.
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.
Sign in to start a discussion.
More Papers Like This
Picogram-Level Nanoplastic Analysis with Nanoelectromechanical System Fourier Transform Infrared Spectroscopy: NEMS-FTIR
Researchers developed a NEMS-FTIR approach combining nanoelectromechanical systems with Fourier transform infrared spectroscopy for chemical characterization and quantification of nanoplastics, achieving picogram-level detection limits ranging from 101 to 353 pg for polypropylene, polystyrene, and polyvinyl chloride nanoplastics with diameters from 54 to 262 nm.
Characterization of a multilevel micro/nano-plastics Infrared Spectroscopy using optical chopper modulation and induced anti-stokes shift techniques
Researchers designed a new infrared spectroscopy system combining optical modulation and laser techniques to detect nanoplastics and microplastics smaller than 10 micrometers — well below the 20-micrometer detection limit of most current instruments — potentially enabling more sensitive identification of the tiniest plastic particles in environmental samples.
Identification of microplastics and nanoplastics in environmental water by AFM-IR
Scientists used a new technique called AFM-IR, which combines atomic force microscopy with infrared spectroscopy, to identify individual nanoplastic particles in environmental water for the first time. This method can detect particles as small as 100 nanometers, far beyond the limits of traditional microscopy. They found several types of nanoplastics in a water sample, including an epoxy and a biodegradable plastic, demonstrating that this tool could improve our ability to track nanoplastic pollution.
High-resolution characterization technology for micro-/nano-plastics
This review provides an overview of advanced technologies for detecting and characterizing micro- and nanoplastics, including Raman spectroscopy, infrared imaging, and mass spectrometry techniques. Researchers evaluated the capabilities and limitations of each method, particularly for identifying the smallest plastic particles that are most challenging to measure. The study emphasizes that improving detection at the nanoscale is essential for accurately assessing the environmental and health risks of plastic pollution.
Analysing micro- and nanoplastics with cutting-edge infrared spectroscopy techniques: a critical review
This review evaluates cutting-edge infrared spectroscopy techniques for detecting and analyzing micro- and nanoplastics in environmental and food samples. Better detection methods are crucial for understanding human exposure because they allow scientists to measure smaller particles more accurately, including nanoplastics that are small enough to cross biological barriers and accumulate in human tissues.