Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Menegatti de Melo, Fernando, Mattioni, João V., Dias, Fernando, Fu, Ying, Toma, Henrique E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2021
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
_version_ 1784777097519038464
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
work_keys_str_mv AT menegattidemelofernando solvophobiccontrolledsynthesisofsmartmagnetofluorescentnanostructuresforrealtimeinspectionofmetallicfractures
AT mattionijoaov solvophobiccontrolledsynthesisofsmartmagnetofluorescentnanostructuresforrealtimeinspectionofmetallicfractures
AT diasfernando solvophobiccontrolledsynthesisofsmartmagnetofluorescentnanostructuresforrealtimeinspectionofmetallicfractures
AT fuying solvophobiccontrolledsynthesisofsmartmagnetofluorescentnanostructuresforrealtimeinspectionofmetallicfractures
AT tomahenriquee solvophobiccontrolledsynthesisofsmartmagnetofluorescentnanostructuresforrealtimeinspectionofmetallicfractures