Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesive
Abstract: The purpose of this study was to describe the synthesis, characterization, and functionalization of b-NaYF4:30%Yb/0.5%Tm upconverting nanocrystals for use as nanofillers in a dental adhesive and microscopically evaluate the interface between the particles and a commercial adhesive. The upc...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Pesquisa Odontológica
2021-12-01
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| Series: | Brazilian Oral Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242021000100291&tlng=en |
| _version_ | 1818775112219885568 |
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| author | Rafael Rocha Pacheco Ali Francisco Garcia-Flores Jorge Rodrigo Soto-Montero Guilherme Gorgen Lesseux Ailla Carla Rocha Acosta Lancelotti Eduardo David Martinez Carlos Rettori Ricardo Rodrigues Urbano Frederick Allen Rueggeberg Marcelo Giannini |
| author_facet | Rafael Rocha Pacheco Ali Francisco Garcia-Flores Jorge Rodrigo Soto-Montero Guilherme Gorgen Lesseux Ailla Carla Rocha Acosta Lancelotti Eduardo David Martinez Carlos Rettori Ricardo Rodrigues Urbano Frederick Allen Rueggeberg Marcelo Giannini |
| author_sort | Rafael Rocha Pacheco |
| collection | DOAJ |
| description | Abstract: The purpose of this study was to describe the synthesis, characterization, and functionalization of b-NaYF4:30%Yb/0.5%Tm upconverting nanocrystals for use as nanofillers in a dental adhesive and microscopically evaluate the interface between the particles and a commercial adhesive. The upconverting nanoparticles were synthesized and purified by thermal decomposition, and their chemical composition determined by energy dispersive X-Ray spectroscopy. The crystalline structure was characterized using X-Ray diffraction and morphology and size were observed with scanning and transmission electron microscopy. Upconverting emission was evaluated by spectrophotometry irradiating the particles with a 975 nm diode laser. Particles were functionalized with polyacrylic acid and the success was confirmed by measurement of Zeta Potential and transmission electron microscopy. The results of X-ray diffraction found a pure hexagonal phase crystalline pattern. Scanning electron microscopy showed uniform dispersion of hexagonal-shaped particles of approximately 150 nm. Upconversion emission was observed in 344 nm, 361 nm, 450 nm, 474nm, 646 nm, 803 nm. Functionalization success was confirmed by formation of a stable aqueous colloid with a Zeta potential of −29.5mV and the absence of voids in the particle-adhesive interface on the transmission electron microscopy images. The reported synthesis and functionalization process produced upconverting nanoparticles emitting photons within the blue spectral region (450 nm and 474 nm). |
| first_indexed | 2024-12-18T10:51:51Z |
| format | Article |
| id | doaj.art-4d4298611d3f45dcaa478658b43bedcd |
| institution | Directory Open Access Journal |
| issn | 1807-3107 |
| language | English |
| last_indexed | 2024-12-18T10:51:51Z |
| publishDate | 2021-12-01 |
| publisher | Sociedade Brasileira de Pesquisa Odontológica |
| record_format | Article |
| series | Brazilian Oral Research |
| spelling | doaj.art-4d4298611d3f45dcaa478658b43bedcd2022-12-21T21:10:26ZengSociedade Brasileira de Pesquisa OdontológicaBrazilian Oral Research1807-31072021-12-013510.1590/1807-3107bor-2021.vol35.0120Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesiveRafael Rocha Pachecohttps://orcid.org/0000-0001-5725-8721Ali Francisco Garcia-Floreshttps://orcid.org/0000-0001-6764-1839Jorge Rodrigo Soto-Monterohttps://orcid.org/0000-0003-2257-7049Guilherme Gorgen Lesseuxhttps://orcid.org/0000-0003-0503-3664Ailla Carla Rocha Acosta Lancelottihttps://orcid.org/0000-0001-5438-1097Eduardo David Martinezhttps://orcid.org/0000-0002-5834-4389Carlos Rettorihttps://orcid.org/0000-0001-6692-7915Ricardo Rodrigues Urbanohttps://orcid.org/0000-0002-9443-8374Frederick Allen Rueggeberghttps://orcid.org/0000-0003-1947-3337Marcelo Gianninihttps://orcid.org/0000-0002-7260-5231Abstract: The purpose of this study was to describe the synthesis, characterization, and functionalization of b-NaYF4:30%Yb/0.5%Tm upconverting nanocrystals for use as nanofillers in a dental adhesive and microscopically evaluate the interface between the particles and a commercial adhesive. The upconverting nanoparticles were synthesized and purified by thermal decomposition, and their chemical composition determined by energy dispersive X-Ray spectroscopy. The crystalline structure was characterized using X-Ray diffraction and morphology and size were observed with scanning and transmission electron microscopy. Upconverting emission was evaluated by spectrophotometry irradiating the particles with a 975 nm diode laser. Particles were functionalized with polyacrylic acid and the success was confirmed by measurement of Zeta Potential and transmission electron microscopy. The results of X-ray diffraction found a pure hexagonal phase crystalline pattern. Scanning electron microscopy showed uniform dispersion of hexagonal-shaped particles of approximately 150 nm. Upconversion emission was observed in 344 nm, 361 nm, 450 nm, 474nm, 646 nm, 803 nm. Functionalization success was confirmed by formation of a stable aqueous colloid with a Zeta potential of −29.5mV and the absence of voids in the particle-adhesive interface on the transmission electron microscopy images. The reported synthesis and functionalization process produced upconverting nanoparticles emitting photons within the blue spectral region (450 nm and 474 nm).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242021000100291&tlng=enNanotechnologyAdhesivesBiomedical and Dental MaterialsSpectrum Analysis |
| spellingShingle | Rafael Rocha Pacheco Ali Francisco Garcia-Flores Jorge Rodrigo Soto-Montero Guilherme Gorgen Lesseux Ailla Carla Rocha Acosta Lancelotti Eduardo David Martinez Carlos Rettori Ricardo Rodrigues Urbano Frederick Allen Rueggeberg Marcelo Giannini Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesive Brazilian Oral Research Nanotechnology Adhesives Biomedical and Dental Materials Spectrum Analysis |
| title | Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesive |
| title_full | Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesive |
| title_fullStr | Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesive |
| title_full_unstemmed | Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesive |
| title_short | Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesive |
| title_sort | synthesis characterization and incorporation of upconverting nanoparticles into a dental adhesive |
| topic | Nanotechnology Adhesives Biomedical and Dental Materials Spectrum Analysis |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242021000100291&tlng=en |
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