Polymer planar microcavities with CdSe‐ZnS core‐shell quantum dots for label‐free vapor sensing
Abstract Volatile organic compounds are a class of widespread air pollutants that are increasingly impacting anthropized environments. Due to the potential toxic effects associated with many of these compounds, the development of inexpensive and effective sensors for in situ detection, both indoor a...
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| Format: | Article |
| Language: | English |
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Wiley
2025-08-01
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| Series: | Responsive Materials |
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| Online Access: | https://doi.org/10.1002/rpm2.70017 |
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| author | Laura Magnasco Martina Martusciello Andrea Escher Giovanni Manfredi Paola Lova Davide Comoretto Andrea Lanfranchi |
| author_facet | Laura Magnasco Martina Martusciello Andrea Escher Giovanni Manfredi Paola Lova Davide Comoretto Andrea Lanfranchi |
| author_sort | Laura Magnasco |
| collection | DOAJ |
| description | Abstract Volatile organic compounds are a class of widespread air pollutants that are increasingly impacting anthropized environments. Due to the potential toxic effects associated with many of these compounds, the development of inexpensive and effective sensors for in situ detection, both indoor and outdoor, is of paramount technological importance to mitigate human exposure and develop appropriate intervention strategies. However, portable technologies are typically designed to quantify known pollutants, while qualitative measurements often require complex sampling and laboratory analyses. In this study, we propose a dual‐detection photonic sensor based on polymeric microcavities doped with emitting nanocrystals, capable of identifying various volatile compounds in vapor phase. The sensor consists of a lattice of altenated sub‐micrometric layers of cellulose acetate and poly(N‐vinylcarbazole), with a periodic structure interrupted by an engineered defect layer doped with core‐shell CdSe/ZnS quantum dots. The response to different analytes can be detected through both transmittance and photoluminescence measurements, with distinct features arising from the specific chemical and physical interactions between the sensor components and the pollutants. |
| format | Article |
| id | doaj-art-c4780ef27d6a4750af3b4dd49e10643e |
| institution | DOAJ |
| issn | 2834-8966 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Responsive Materials |
| spelling | doaj-art-c4780ef27d6a4750af3b4dd49e10643e2025-08-20T02:58:00ZengWileyResponsive Materials2834-89662025-08-0133n/an/a10.1002/rpm2.70017Polymer planar microcavities with CdSe‐ZnS core‐shell quantum dots for label‐free vapor sensingLaura Magnasco0Martina Martusciello1Andrea Escher2Giovanni Manfredi3Paola Lova4Davide Comoretto5Andrea Lanfranchi6Department of Chemistry and Industrial Chemistry University of Genoa Genoa ItalyDepartment of Chemistry and Industrial Chemistry University of Genoa Genoa ItalyDepartment of Chemistry and Industrial Chemistry University of Genoa Genoa ItalyNovavido S.r.l. Bologna ItalyDepartment of Chemistry and Industrial Chemistry University of Genoa Genoa ItalyDepartment of Chemistry and Industrial Chemistry University of Genoa Genoa ItalyDepartment of Chemistry and Industrial Chemistry University of Genoa Genoa ItalyAbstract Volatile organic compounds are a class of widespread air pollutants that are increasingly impacting anthropized environments. Due to the potential toxic effects associated with many of these compounds, the development of inexpensive and effective sensors for in situ detection, both indoor and outdoor, is of paramount technological importance to mitigate human exposure and develop appropriate intervention strategies. However, portable technologies are typically designed to quantify known pollutants, while qualitative measurements often require complex sampling and laboratory analyses. In this study, we propose a dual‐detection photonic sensor based on polymeric microcavities doped with emitting nanocrystals, capable of identifying various volatile compounds in vapor phase. The sensor consists of a lattice of altenated sub‐micrometric layers of cellulose acetate and poly(N‐vinylcarbazole), with a periodic structure interrupted by an engineered defect layer doped with core‐shell CdSe/ZnS quantum dots. The response to different analytes can be detected through both transmittance and photoluminescence measurements, with distinct features arising from the specific chemical and physical interactions between the sensor components and the pollutants.https://doi.org/10.1002/rpm2.70017distributed Bragg reflectorspollutantssensingsensorsvaporsvolatile organic compounds |
| spellingShingle | Laura Magnasco Martina Martusciello Andrea Escher Giovanni Manfredi Paola Lova Davide Comoretto Andrea Lanfranchi Polymer planar microcavities with CdSe‐ZnS core‐shell quantum dots for label‐free vapor sensing Responsive Materials distributed Bragg reflectors pollutants sensing sensors vapors volatile organic compounds |
| title | Polymer planar microcavities with CdSe‐ZnS core‐shell quantum dots for label‐free vapor sensing |
| title_full | Polymer planar microcavities with CdSe‐ZnS core‐shell quantum dots for label‐free vapor sensing |
| title_fullStr | Polymer planar microcavities with CdSe‐ZnS core‐shell quantum dots for label‐free vapor sensing |
| title_full_unstemmed | Polymer planar microcavities with CdSe‐ZnS core‐shell quantum dots for label‐free vapor sensing |
| title_short | Polymer planar microcavities with CdSe‐ZnS core‐shell quantum dots for label‐free vapor sensing |
| title_sort | polymer planar microcavities with cdse zns core shell quantum dots for label free vapor sensing |
| topic | distributed Bragg reflectors pollutants sensing sensors vapors volatile organic compounds |
| url | https://doi.org/10.1002/rpm2.70017 |
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