Vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask

Abstract Tubular architecture has been extensively exploited in diverse applications such as solar cells and sensors. However, the synthesis of microtubes with high aspect ratio using polymer templates has been rarely reported. In this study, we designed a facile avenue for the synthesis of well-ali...

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Autores principales:	Soohyun Kim, Keon-Soo Jang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fe51d65545b04dbbb4187d7a3eaf5898
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spelling	oai:doaj.org-article:fe51d65545b04dbbb4187d7a3eaf58982021-12-02T18:51:06ZVertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask10.1038/s41598-020-73506-12045-2322https://doaj.org/article/fe51d65545b04dbbb4187d7a3eaf58982020-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-73506-1https://doaj.org/toc/2045-2322Abstract Tubular architecture has been extensively exploited in diverse applications such as solar cells and sensors. However, the synthesis of microtubes with high aspect ratio using polymer templates has been rarely reported. In this study, we designed a facile avenue for the synthesis of well-aligned Au nanoparticle-agglomerate microtubes with an aspect ratio of ~ 30 using a hollow polyetherimide (PEI) template. The combination of wet phase inversion and use of a Cu grid mask enabled straightforward production of a hollow PEI template with vertically aligned tubular architecture. During wet-phase inversion, exchange between a solvent (N-methyl-2-pyrrolidone) and a non-solvent (water) occurred at the corners of the square mask cells rather than along their side, thereby producing pores at the corners due to geometrical and entropic factors. The hollow microtubes were comprised of agglomerated Au nanoparticles that coated the inner surfaces of the pores during an electroless plating process performed after wet-phase inversion. This finding is applicable to diverse applications such as sensors and catalysis.Soohyun KimKeon-Soo JangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Soohyun Kim Keon-Soo Jang Vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask
description	Abstract Tubular architecture has been extensively exploited in diverse applications such as solar cells and sensors. However, the synthesis of microtubes with high aspect ratio using polymer templates has been rarely reported. In this study, we designed a facile avenue for the synthesis of well-aligned Au nanoparticle-agglomerate microtubes with an aspect ratio of ~ 30 using a hollow polyetherimide (PEI) template. The combination of wet phase inversion and use of a Cu grid mask enabled straightforward production of a hollow PEI template with vertically aligned tubular architecture. During wet-phase inversion, exchange between a solvent (N-methyl-2-pyrrolidone) and a non-solvent (water) occurred at the corners of the square mask cells rather than along their side, thereby producing pores at the corners due to geometrical and entropic factors. The hollow microtubes were comprised of agglomerated Au nanoparticles that coated the inner surfaces of the pores during an electroless plating process performed after wet-phase inversion. This finding is applicable to diverse applications such as sensors and catalysis.
format	article
author	Soohyun Kim Keon-Soo Jang
author_facet	Soohyun Kim Keon-Soo Jang
author_sort	Soohyun Kim
title	Vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask
title_short	Vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask
title_full	Vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask
title_fullStr	Vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask
title_full_unstemmed	Vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask
title_sort	vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and cu grid mask
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/fe51d65545b04dbbb4187d7a3eaf5898
work_keys_str_mv	AT soohyunkim verticallyalignednanostructuredgoldmicrotubeassistedbypolymertemplatewithcombinationofwetphaseinversionandcugridmask AT keonsoojang verticallyalignednanostructuredgoldmicrotubeassistedbypolymertemplatewithcombinationofwetphaseinversionandcugridmask
_version_	1718377483424759808

Vertically aligned nanostructured gold microtube assisted by polymer template with combination of wet phase inversion and Cu grid mask

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