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Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant
Plastic products are used ubiquitously and can potentially release microplastics and nanoplastics into the environment, for example, products such as the silicone sealant used in kitchens. It is important to develop an effective method to monitor these emerging contaminants, as reported herein. By u...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10229840/ https://www.ncbi.nlm.nih.gov/pubmed/37265588 http://dx.doi.org/10.3389/fchem.2023.1165523 |
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author | Fang, Cheng Luo, Yunlong Naidu, Ravi |
author_facet | Fang, Cheng Luo, Yunlong Naidu, Ravi |
author_sort | Fang, Cheng |
collection | PubMed |
description | Plastic products are used ubiquitously and can potentially release microplastics and nanoplastics into the environment, for example, products such as the silicone sealant used in kitchens. It is important to develop an effective method to monitor these emerging contaminants, as reported herein. By using advanced Raman imaging to characterize microplastics and nanoplastics from hundreds of spectra in a scanning spectrum matrix and not from a single spectrum or peak, the signal-to-noise ratio can be significantly increased, from a statistical point of view. The diffraction of the laser spot usually constrains the imaging resolution (such as at ∼300 nm), which is also pushed to the limit in this report by shrinking the scanning pixel size down to ∼50 nm to capture and image small nanoplastics effectively. To this end, image reconstruction is developed to successfully pick up the meaningful Raman signal and intentionally avoid the noise. The results indicate that the silicone sealant in a kitchen can release a significant amount of microplastics and nanoplastics. Overall, advanced Raman imaging can be employed to characterize the microplastics and even nanoplastics that are smaller than the diffraction limit of the laser via Raman imaging and image reconstruction toward deconvolution. |
format | Online Article Text |
id | pubmed-10229840 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-102298402023-06-01 Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant Fang, Cheng Luo, Yunlong Naidu, Ravi Front Chem Chemistry Plastic products are used ubiquitously and can potentially release microplastics and nanoplastics into the environment, for example, products such as the silicone sealant used in kitchens. It is important to develop an effective method to monitor these emerging contaminants, as reported herein. By using advanced Raman imaging to characterize microplastics and nanoplastics from hundreds of spectra in a scanning spectrum matrix and not from a single spectrum or peak, the signal-to-noise ratio can be significantly increased, from a statistical point of view. The diffraction of the laser spot usually constrains the imaging resolution (such as at ∼300 nm), which is also pushed to the limit in this report by shrinking the scanning pixel size down to ∼50 nm to capture and image small nanoplastics effectively. To this end, image reconstruction is developed to successfully pick up the meaningful Raman signal and intentionally avoid the noise. The results indicate that the silicone sealant in a kitchen can release a significant amount of microplastics and nanoplastics. Overall, advanced Raman imaging can be employed to characterize the microplastics and even nanoplastics that are smaller than the diffraction limit of the laser via Raman imaging and image reconstruction toward deconvolution. Frontiers Media S.A. 2023-05-17 /pmc/articles/PMC10229840/ /pubmed/37265588 http://dx.doi.org/10.3389/fchem.2023.1165523 Text en Copyright © 2023 Fang, Luo and Naidu. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Fang, Cheng Luo, Yunlong Naidu, Ravi Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant |
title | Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant |
title_full | Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant |
title_fullStr | Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant |
title_full_unstemmed | Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant |
title_short | Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant |
title_sort | raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10229840/ https://www.ncbi.nlm.nih.gov/pubmed/37265588 http://dx.doi.org/10.3389/fchem.2023.1165523 |
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