Solid Fluorescence pH Sensors Based on 1,8-Naphthalimide Copolymers Synthesized by UV Curing
Novel water-swollen photo-crosslinked membranes were obtained by copolymerization of the N-vinylpyrrolidone, butyl acrylate and ethyl methacrylate monomers functionalized with naphthalimide groups, as pH sensitive fluorescence probes. For that purpose, two monomers with pending naphthalimide groups...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Chemosensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2227-9040/10/2/73 |
| _version_ | 1797481750516989952 |
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| author | Jesús L. Pablos Esther Hernández Fernando Catalina Teresa Corrales |
| author_facet | Jesús L. Pablos Esther Hernández Fernando Catalina Teresa Corrales |
| author_sort | Jesús L. Pablos |
| collection | DOAJ |
| description | Novel water-swollen photo-crosslinked membranes were obtained by copolymerization of the N-vinylpyrrolidone, butyl acrylate and ethyl methacrylate monomers functionalized with naphthalimide groups, as pH sensitive fluorescence probes. For that purpose, two monomers with pending naphthalimide groups anchored to ethyl methacrylate through alkyl chains with different length, were previously synthesized. The membranes were characterized using different techniques. The pH dependence of absorbance and the corresponding quenching of fluorescence were investigated and related to the structure of naphthalimide substituents linked to the membrane. The new solid sensors exhibited sensitive fluorescence changes at pH < 3, and lower time response was determined for membranes where the sensing group was linked through longer alkyl chain to the polymer matrix. The membranes were solid, thermally stable and easily handled to be applied as sensor materials, and showed a reversible behavior, which is an important feature for further fabrication of an economical on-site tool for the acidity detection in aqueous environments. |
| first_indexed | 2024-03-09T22:18:59Z |
| format | Article |
| id | doaj.art-2f72b14afd7949bd944fbfa5dd4cbfc5 |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-09T22:18:59Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-2f72b14afd7949bd944fbfa5dd4cbfc52023-11-23T19:17:28ZengMDPI AGChemosensors2227-90402022-02-011027310.3390/chemosensors10020073Solid Fluorescence pH Sensors Based on 1,8-Naphthalimide Copolymers Synthesized by UV CuringJesús L. Pablos0Esther Hernández1Fernando Catalina2Teresa Corrales3Grupo Fotoquímica de Polímeros, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, SpainGrupo Fotoquímica de Polímeros, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, SpainGrupo Fotoquímica de Polímeros, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, SpainGrupo Fotoquímica de Polímeros, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, SpainNovel water-swollen photo-crosslinked membranes were obtained by copolymerization of the N-vinylpyrrolidone, butyl acrylate and ethyl methacrylate monomers functionalized with naphthalimide groups, as pH sensitive fluorescence probes. For that purpose, two monomers with pending naphthalimide groups anchored to ethyl methacrylate through alkyl chains with different length, were previously synthesized. The membranes were characterized using different techniques. The pH dependence of absorbance and the corresponding quenching of fluorescence were investigated and related to the structure of naphthalimide substituents linked to the membrane. The new solid sensors exhibited sensitive fluorescence changes at pH < 3, and lower time response was determined for membranes where the sensing group was linked through longer alkyl chain to the polymer matrix. The membranes were solid, thermally stable and easily handled to be applied as sensor materials, and showed a reversible behavior, which is an important feature for further fabrication of an economical on-site tool for the acidity detection in aqueous environments.https://www.mdpi.com/2227-9040/10/2/73photopolymerizationfluorescence probenaphthalimideacidity sensor |
| spellingShingle | Jesús L. Pablos Esther Hernández Fernando Catalina Teresa Corrales Solid Fluorescence pH Sensors Based on 1,8-Naphthalimide Copolymers Synthesized by UV Curing Chemosensors photopolymerization fluorescence probe naphthalimide acidity sensor |
| title | Solid Fluorescence pH Sensors Based on 1,8-Naphthalimide Copolymers Synthesized by UV Curing |
| title_full | Solid Fluorescence pH Sensors Based on 1,8-Naphthalimide Copolymers Synthesized by UV Curing |
| title_fullStr | Solid Fluorescence pH Sensors Based on 1,8-Naphthalimide Copolymers Synthesized by UV Curing |
| title_full_unstemmed | Solid Fluorescence pH Sensors Based on 1,8-Naphthalimide Copolymers Synthesized by UV Curing |
| title_short | Solid Fluorescence pH Sensors Based on 1,8-Naphthalimide Copolymers Synthesized by UV Curing |
| title_sort | solid fluorescence ph sensors based on 1 8 naphthalimide copolymers synthesized by uv curing |
| topic | photopolymerization fluorescence probe naphthalimide acidity sensor |
| url | https://www.mdpi.com/2227-9040/10/2/73 |
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