Dansyl-Labelled Ag@SiO<sub>2</sub> Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced Fluorescence
The present work describes synthesis, characterization, and use of a new dansyl-labelled Ag@SiO<sub>2</sub> nanocomposite as an element of a new plasmonic platform to enhance the fluorescence intensity. Keeping in mind that typical surface plasmon resonance (SPR) characteristics of silve...
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| Format: | Article |
| Language: | English |
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2020-11-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/22/5168 |
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| author | Elżbieta Szczepańska Anna Synak Piotr Bojarski Paweł Niedziałkowski Anna Wcisło Tadeusz Ossowski Beata Grobelna |
| author_facet | Elżbieta Szczepańska Anna Synak Piotr Bojarski Paweł Niedziałkowski Anna Wcisło Tadeusz Ossowski Beata Grobelna |
| author_sort | Elżbieta Szczepańska |
| collection | DOAJ |
| description | The present work describes synthesis, characterization, and use of a new dansyl-labelled Ag@SiO<sub>2</sub> nanocomposite as an element of a new plasmonic platform to enhance the fluorescence intensity. Keeping in mind that typical surface plasmon resonance (SPR) characteristics of silver nanoparticles coincide well enough with the absorption of dansyl molecules, we used them to build the core of the nanocomposite. Moreover, we utilized 10 nm amino-functionalized silica shell as a separator between silver nanoparticles and the dansyl dye to prevent the dye-to-metal energy transfer. The dansyl group was incorporated into Ag@SiO<sub>2</sub> core-shell nanostructures by the reaction of aminopropyltrimethoxysilane with dansyl chloride and we characterized the new dansyl-labelled Ag@SiO<sub>2</sub> nanocomposite using transmission electron microscopy (TEM) and Fourier-transform infrared spectroscopy (FTIR). Additionally, water wettability measurements (WWM) were carried out to assess the hydrophobicity and hydrophilicity of the studied surface. We found that the nanocomposite deposited on a semitransparent silver mirror strongly increased the fluorescence intensity of dansyl dye (about 87-fold) compared with the control sample on the glass, proving that the system is a perfect candidate for a sensitive plasmonic platform. |
| first_indexed | 2024-03-10T14:48:41Z |
| format | Article |
| id | doaj.art-45a330c4bc924c53a84f7fcfe74b7174 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T14:48:41Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-45a330c4bc924c53a84f7fcfe74b71742023-11-20T21:09:45ZengMDPI AGMaterials1996-19442020-11-011322516810.3390/ma13225168Dansyl-Labelled Ag@SiO<sub>2</sub> Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced FluorescenceElżbieta Szczepańska0Anna Synak1Piotr Bojarski2Paweł Niedziałkowski3Anna Wcisło4Tadeusz Ossowski5Beata Grobelna6Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, PolandFaculty of Mathematics, Physics and Informatics, University of Gdansk, Wita Stwosza 57, 80-308 Gdańsk, PolandFaculty of Mathematics, Physics and Informatics, University of Gdansk, Wita Stwosza 57, 80-308 Gdańsk, PolandFaculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, PolandFaculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, PolandFaculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, PolandFaculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, PolandThe present work describes synthesis, characterization, and use of a new dansyl-labelled Ag@SiO<sub>2</sub> nanocomposite as an element of a new plasmonic platform to enhance the fluorescence intensity. Keeping in mind that typical surface plasmon resonance (SPR) characteristics of silver nanoparticles coincide well enough with the absorption of dansyl molecules, we used them to build the core of the nanocomposite. Moreover, we utilized 10 nm amino-functionalized silica shell as a separator between silver nanoparticles and the dansyl dye to prevent the dye-to-metal energy transfer. The dansyl group was incorporated into Ag@SiO<sub>2</sub> core-shell nanostructures by the reaction of aminopropyltrimethoxysilane with dansyl chloride and we characterized the new dansyl-labelled Ag@SiO<sub>2</sub> nanocomposite using transmission electron microscopy (TEM) and Fourier-transform infrared spectroscopy (FTIR). Additionally, water wettability measurements (WWM) were carried out to assess the hydrophobicity and hydrophilicity of the studied surface. We found that the nanocomposite deposited on a semitransparent silver mirror strongly increased the fluorescence intensity of dansyl dye (about 87-fold) compared with the control sample on the glass, proving that the system is a perfect candidate for a sensitive plasmonic platform.https://www.mdpi.com/1996-1944/13/22/5168dansyl-labelled Ag@SiO<sub>2</sub> core-shell nanostructuresplasmonic platformenhanced fluorescencefluorescence decay |
| spellingShingle | Elżbieta Szczepańska Anna Synak Piotr Bojarski Paweł Niedziałkowski Anna Wcisło Tadeusz Ossowski Beata Grobelna Dansyl-Labelled Ag@SiO<sub>2</sub> Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced Fluorescence Materials dansyl-labelled Ag@SiO<sub>2</sub> core-shell nanostructures plasmonic platform enhanced fluorescence fluorescence decay |
| title | Dansyl-Labelled Ag@SiO<sub>2</sub> Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced Fluorescence |
| title_full | Dansyl-Labelled Ag@SiO<sub>2</sub> Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced Fluorescence |
| title_fullStr | Dansyl-Labelled Ag@SiO<sub>2</sub> Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced Fluorescence |
| title_full_unstemmed | Dansyl-Labelled Ag@SiO<sub>2</sub> Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced Fluorescence |
| title_short | Dansyl-Labelled Ag@SiO<sub>2</sub> Core-Shell Nanostructures—Synthesis, Characterization, and Metal-Enhanced Fluorescence |
| title_sort | dansyl labelled ag sio sub 2 sub core shell nanostructures synthesis characterization and metal enhanced fluorescence |
| topic | dansyl-labelled Ag@SiO<sub>2</sub> core-shell nanostructures plasmonic platform enhanced fluorescence fluorescence decay |
| url | https://www.mdpi.com/1996-1944/13/22/5168 |
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