Novel Magnet and Thermoresponsive Chemosensory Electrospinning Fluorescent Nanofibers and Their Sensing Capability for Metal Ions
Novel multifunctional switchable chemosensors based on fluorescent electrospun (ES) nanofibers with sensitivity toward magnetism, temperature, and mercury ions (Hg2+) were prepared using blends of poly(N-isopropylacrylamide)-co-(N-methylolacrylamide)-co-(Acrylic acid), the fluorescent probe 1-benzoy...
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| Format: | Article |
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MDPI AG
2017-04-01
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| Series: | Polymers |
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| Online Access: | http://www.mdpi.com/2073-4360/9/4/136 |
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| author | Fang-Cheng Liang Yi-Ling Luo Chi-Ching Kuo Bo-Yu Chen Chia-Jung Cho Fan-Jie Lin Yang-Yen Yu Redouane Borsali |
| author_facet | Fang-Cheng Liang Yi-Ling Luo Chi-Ching Kuo Bo-Yu Chen Chia-Jung Cho Fan-Jie Lin Yang-Yen Yu Redouane Borsali |
| author_sort | Fang-Cheng Liang |
| collection | DOAJ |
| description | Novel multifunctional switchable chemosensors based on fluorescent electrospun (ES) nanofibers with sensitivity toward magnetism, temperature, and mercury ions (Hg2+) were prepared using blends of poly(N-isopropylacrylamide)-co-(N-methylolacrylamide)-co-(Acrylic acid), the fluorescent probe 1-benzoyl-3-[2-(2-allyl-1,3-dioxo-2,3-dihydro-1Hbenzo[de]isoquinolin-6-ylamino)-ethyl]-thiourea (BNPTU), and magnetite nanoparticles (NPs), and a single-capillary spinneret. The moieties of N-isopropylacrylamide, N-methylolacrylamide, acrylic acid, BNPTU, and Iron oxide (Fe3O4) NPs were designed to provide thermoresponsiveness, chemical cross-linking, Fe3O4 NPs dispersion, Hg2+ sensing, and magnetism, respectively. The prepared nanofibers exhibited ultrasensitivity to Hg2+ (as low as 10−3 M) because of an 80-nm blueshift of the emission maximum (from green to blue) and 1.6-fold enhancement of the emission intensity, as well as substantial volume (or hydrophilic to hydrophobic) changes between 30 and 60 °C, attributed to the low critical solution temperature of the thermoresponsive N-isopropylacrylamide moiety. Such temperature-dependent variations in the presence of Hg2+ engendered distinct on–off switching of photoluminescence. The magnetic ES nanofibers can be collected using a magnet rather than being extracted through alternative methods. The results indicate that the prepared multifunctional fluorescent ES nanofibrous membranes can be used as naked eye sensors and have the potential for application in multifunctional environmental sensing devices for detecting metal ions, temperature, and magnetism as well as for water purification sensing filters. |
| first_indexed | 2024-04-13T01:46:40Z |
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| id | doaj.art-96a1747d0b6b4686a189ef8120ba82ab |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-04-13T01:46:40Z |
| publishDate | 2017-04-01 |
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| series | Polymers |
| spelling | doaj.art-96a1747d0b6b4686a189ef8120ba82ab2022-12-22T03:08:01ZengMDPI AGPolymers2073-43602017-04-019413610.3390/polym9040136polym9040136Novel Magnet and Thermoresponsive Chemosensory Electrospinning Fluorescent Nanofibers and Their Sensing Capability for Metal IonsFang-Cheng Liang0Yi-Ling Luo1Chi-Ching Kuo2Bo-Yu Chen3Chia-Jung Cho4Fan-Jie Lin5Yang-Yen Yu6Redouane Borsali7Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, TaiwanInstitute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, TaiwanInstitute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, TaiwanInstitute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, TaiwanInstitute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, TaiwanInstitute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, TaiwanDepartment of Materials Engineering, Ming Chi University of Technology, New Taipei 24301, TaiwanInstitute of Glycosciences, Grenoble Alpes University, CNRS, CERMAV UPR 5301, 38000 Grenoble, FranceNovel multifunctional switchable chemosensors based on fluorescent electrospun (ES) nanofibers with sensitivity toward magnetism, temperature, and mercury ions (Hg2+) were prepared using blends of poly(N-isopropylacrylamide)-co-(N-methylolacrylamide)-co-(Acrylic acid), the fluorescent probe 1-benzoyl-3-[2-(2-allyl-1,3-dioxo-2,3-dihydro-1Hbenzo[de]isoquinolin-6-ylamino)-ethyl]-thiourea (BNPTU), and magnetite nanoparticles (NPs), and a single-capillary spinneret. The moieties of N-isopropylacrylamide, N-methylolacrylamide, acrylic acid, BNPTU, and Iron oxide (Fe3O4) NPs were designed to provide thermoresponsiveness, chemical cross-linking, Fe3O4 NPs dispersion, Hg2+ sensing, and magnetism, respectively. The prepared nanofibers exhibited ultrasensitivity to Hg2+ (as low as 10−3 M) because of an 80-nm blueshift of the emission maximum (from green to blue) and 1.6-fold enhancement of the emission intensity, as well as substantial volume (or hydrophilic to hydrophobic) changes between 30 and 60 °C, attributed to the low critical solution temperature of the thermoresponsive N-isopropylacrylamide moiety. Such temperature-dependent variations in the presence of Hg2+ engendered distinct on–off switching of photoluminescence. The magnetic ES nanofibers can be collected using a magnet rather than being extracted through alternative methods. The results indicate that the prepared multifunctional fluorescent ES nanofibrous membranes can be used as naked eye sensors and have the potential for application in multifunctional environmental sensing devices for detecting metal ions, temperature, and magnetism as well as for water purification sensing filters.http://www.mdpi.com/2073-4360/9/4/136electrospun nanofibersheavy metal ionsmagneticfluorescent sensingchemosensory |
| spellingShingle | Fang-Cheng Liang Yi-Ling Luo Chi-Ching Kuo Bo-Yu Chen Chia-Jung Cho Fan-Jie Lin Yang-Yen Yu Redouane Borsali Novel Magnet and Thermoresponsive Chemosensory Electrospinning Fluorescent Nanofibers and Their Sensing Capability for Metal Ions Polymers electrospun nanofibers heavy metal ions magnetic fluorescent sensing chemosensory |
| title | Novel Magnet and Thermoresponsive Chemosensory Electrospinning Fluorescent Nanofibers and Their Sensing Capability for Metal Ions |
| title_full | Novel Magnet and Thermoresponsive Chemosensory Electrospinning Fluorescent Nanofibers and Their Sensing Capability for Metal Ions |
| title_fullStr | Novel Magnet and Thermoresponsive Chemosensory Electrospinning Fluorescent Nanofibers and Their Sensing Capability for Metal Ions |
| title_full_unstemmed | Novel Magnet and Thermoresponsive Chemosensory Electrospinning Fluorescent Nanofibers and Their Sensing Capability for Metal Ions |
| title_short | Novel Magnet and Thermoresponsive Chemosensory Electrospinning Fluorescent Nanofibers and Their Sensing Capability for Metal Ions |
| title_sort | novel magnet and thermoresponsive chemosensory electrospinning fluorescent nanofibers and their sensing capability for metal ions |
| topic | electrospun nanofibers heavy metal ions magnetic fluorescent sensing chemosensory |
| url | http://www.mdpi.com/2073-4360/9/4/136 |
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