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Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures
The production of materials that contain more than one functional constituent, the so-called multifunctional materials, is quite relevant in advanced technology. By acting as building blocks, nanoparticles can be suitably explored for generating higher-order multifunctional structures. In this regar...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419086/ https://www.ncbi.nlm.nih.gov/pubmed/36133726 http://dx.doi.org/10.1039/d1na00149c |
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author | Menegatti de Melo, Fernando Mattioni, João V. Dias, Fernando Fu, Ying Toma, Henrique E. |
author_facet | Menegatti de Melo, Fernando Mattioni, João V. Dias, Fernando Fu, Ying Toma, Henrique E. |
author_sort | Menegatti de Melo, Fernando |
collection | PubMed |
description | The production of materials that contain more than one functional constituent, the so-called multifunctional materials, is quite relevant in advanced technology. By acting as building blocks, nanoparticles can be suitably explored for generating higher-order multifunctional structures. In this regard, herein, a special clustered magneto-fluorescent superstructure has been developed for non-destructive detection of flaws and shallow subsurface discontinuities in industrial ferromagnetic materials. The strategy consists of the solvophobic-controlled assembly of organic-based maghemite cores and water-based II–VI quantum dots, in the presence of hexadecyltrimethyl-ammonium bromide, CTAB, as a compatibilizer agent. This composite exhibited a high magnetic response (σ(max) = 66 emu g(−1)) and uniform size, in addition to tunable optical properties (QY = 78%). The strategy of utilizing nanoparticles as magneto-fluorescent nanoprobes to identify tiny slits represents a great advance, for improving the capability of precisely revealing the fracture boundary locations by visual real-time inspection. The nanoscale probes exhibit a low signal-to-noise ratio and a higher competitive performance in relation to the existing micrometric detection systems. |
format | Online Article Text |
id | pubmed-9419086 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | RSC |
record_format | MEDLINE/PubMed |
spelling | pubmed-94190862022-09-20 Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures Menegatti de Melo, Fernando Mattioni, João V. Dias, Fernando Fu, Ying Toma, Henrique E. Nanoscale Adv Chemistry The production of materials that contain more than one functional constituent, the so-called multifunctional materials, is quite relevant in advanced technology. By acting as building blocks, nanoparticles can be suitably explored for generating higher-order multifunctional structures. In this regard, herein, a special clustered magneto-fluorescent superstructure has been developed for non-destructive detection of flaws and shallow subsurface discontinuities in industrial ferromagnetic materials. The strategy consists of the solvophobic-controlled assembly of organic-based maghemite cores and water-based II–VI quantum dots, in the presence of hexadecyltrimethyl-ammonium bromide, CTAB, as a compatibilizer agent. This composite exhibited a high magnetic response (σ(max) = 66 emu g(−1)) and uniform size, in addition to tunable optical properties (QY = 78%). The strategy of utilizing nanoparticles as magneto-fluorescent nanoprobes to identify tiny slits represents a great advance, for improving the capability of precisely revealing the fracture boundary locations by visual real-time inspection. The nanoscale probes exhibit a low signal-to-noise ratio and a higher competitive performance in relation to the existing micrometric detection systems. RSC 2021-04-28 /pmc/articles/PMC9419086/ /pubmed/36133726 http://dx.doi.org/10.1039/d1na00149c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Menegatti de Melo, Fernando Mattioni, João V. Dias, Fernando Fu, Ying Toma, Henrique E. Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures |
title | Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures |
title_full | Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures |
title_fullStr | Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures |
title_full_unstemmed | Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures |
title_short | Solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures |
title_sort | solvophobic-controlled synthesis of smart magneto-fluorescent nanostructures for real-time inspection of metallic fractures |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419086/ https://www.ncbi.nlm.nih.gov/pubmed/36133726 http://dx.doi.org/10.1039/d1na00149c |
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