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The right excitation wavelength for microplastics detection via photoluminescence
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Researchers investigated which light wavelengths are best for detecting microplastics using photoluminescence, a technique where particles glow under specific light. Finding the optimal excitation wavelength could make this a practical, low-cost complement to existing microplastic detection tools.
The identification of microplastic particles by photoluminescence could be a low-cost addition to established spectroscopic methods. Here, we investigate which excitation wavelength is optimal for such investigations.
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First experiments using a 405 nm laser show that photoluminescence spectroscopy can reliably distinguish plastic materials from natural marine substrates based on their spectral emission profiles. This technique could offer a faster, lower-cost complement to Raman and FTIR spectroscopy for detecting microplastics in environmental samples.
Novel Concepts for the Detection of Microplastics
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Researchers developed novel photoluminescence-based detection concepts for identifying microplastics in environmental samples, addressing the need for more automated and reliable monitoring methods. The approach could complement existing spectroscopic techniques and contribute to the development of standardized microplastic detection protocols.
Exploring the potential of photoluminescence spectroscopy in combination with Nile Red staining for microplastic detection
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Exploring the potential of photoluminescence spectroscopy for the detection of microplastics
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This study explored the use of photoluminescence spectroscopy — where plastic particles fluoresce under light excitation — as an alternative to FTIR and Raman spectroscopy for detecting and characterizing microplastic and nanoplastic particles in various environmental matrices. The technique showed potential as a faster screening method for identifying plastics in water, food, and other samples.
Detection and Characterisation of Micro- and Nano-plastics in Water using Optical Spectroscopy
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This thesis explored photoluminescence spectroscopy as an alternative technique for detecting and characterizing micro- and nanoplastics in water, optimizing fluorescence excitation-emission features and comparing performance against conventional spectroscopic approaches.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.