Cargando…

Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties

In this work, we report the fabrication of spheres-in-grating assemblies consisting of equally spaced parallel rectangular grooves filled with fluorescent spheres, by employing embossing and convective self-assembly methods. The developed hierarchical assemblies, when compared to spheres spin-cast o...

Descripción completa

Detalles Bibliográficos
Autores principales: Handrea-Dragan, Iuliana M., Vulpoi, Adriana, Farcău, Cosmin, Botiz, Ioan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9000395/
https://www.ncbi.nlm.nih.gov/pubmed/35407201
http://dx.doi.org/10.3390/nano12071084
_version_ 1784685424391749632
author Handrea-Dragan, Iuliana M.
Vulpoi, Adriana
Farcău, Cosmin
Botiz, Ioan
author_facet Handrea-Dragan, Iuliana M.
Vulpoi, Adriana
Farcău, Cosmin
Botiz, Ioan
author_sort Handrea-Dragan, Iuliana M.
collection PubMed
description In this work, we report the fabrication of spheres-in-grating assemblies consisting of equally spaced parallel rectangular grooves filled with fluorescent spheres, by employing embossing and convective self-assembly methods. The developed hierarchical assemblies, when compared to spheres spin-cast on glass, exhibited a blueshift in the photoluminescence spectra, as well as changes in wetting properties induced not only by the patterning process, but also by the nature and size of the utilized spheres. While the patterning process led to increased hydrophobicity, the utilization of spheres with larger diameter improved the hydrophilicity of the fabricated assemblies. Finally, by aiming at the future integration of the spheres-in-grating assemblies as critical components in different technological and medical applications, we report a successful encapsulation of the incorporated spheres within the grating with a top layer of a functional polymer.
format Online
Article
Text
id pubmed-9000395
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-90003952022-04-12 Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties Handrea-Dragan, Iuliana M. Vulpoi, Adriana Farcău, Cosmin Botiz, Ioan Nanomaterials (Basel) Article In this work, we report the fabrication of spheres-in-grating assemblies consisting of equally spaced parallel rectangular grooves filled with fluorescent spheres, by employing embossing and convective self-assembly methods. The developed hierarchical assemblies, when compared to spheres spin-cast on glass, exhibited a blueshift in the photoluminescence spectra, as well as changes in wetting properties induced not only by the patterning process, but also by the nature and size of the utilized spheres. While the patterning process led to increased hydrophobicity, the utilization of spheres with larger diameter improved the hydrophilicity of the fabricated assemblies. Finally, by aiming at the future integration of the spheres-in-grating assemblies as critical components in different technological and medical applications, we report a successful encapsulation of the incorporated spheres within the grating with a top layer of a functional polymer. MDPI 2022-03-25 /pmc/articles/PMC9000395/ /pubmed/35407201 http://dx.doi.org/10.3390/nano12071084 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Handrea-Dragan, Iuliana M.
Vulpoi, Adriana
Farcău, Cosmin
Botiz, Ioan
Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties
title Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties
title_full Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties
title_fullStr Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties
title_full_unstemmed Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties
title_short Spheres-in-Grating Assemblies with Altered Photoluminescence and Wetting Properties
title_sort spheres-in-grating assemblies with altered photoluminescence and wetting properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9000395/
https://www.ncbi.nlm.nih.gov/pubmed/35407201
http://dx.doi.org/10.3390/nano12071084
work_keys_str_mv AT handreadraganiulianam spheresingratingassemblieswithalteredphotoluminescenceandwettingproperties
AT vulpoiadriana spheresingratingassemblieswithalteredphotoluminescenceandwettingproperties
AT farcaucosmin spheresingratingassemblieswithalteredphotoluminescenceandwettingproperties
AT botizioan spheresingratingassemblieswithalteredphotoluminescenceandwettingproperties