Surface-tailored graphene channels

Abstract The detection of ions and molecules in liquids has been receiving considerable attention for the realization of the electronic tongue. Solution-gated field-effect transistors (SFETs) with high sensitivity are useful for detecting ions and molecules by reading electrical transconductance. Ho...

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Autores principales:	Chung Won Lee, Jun Min Suh, Seokhoon Choi, Sang Eon Jun, Tae Hyung Lee, Jin Wook Yang, Sol A Lee, Bo Reum Lee, Donghyeon Yoo, Soo Young Kim, Dong Sung Kim, Ho Won Jang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/c14f6404d8f9455f8c2e0368334d7045
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spelling	oai:doaj.org-article:c14f6404d8f9455f8c2e0368334d70452021-12-02T14:25:14ZSurface-tailored graphene channels10.1038/s41699-021-00223-22397-7132https://doaj.org/article/c14f6404d8f9455f8c2e0368334d70452021-04-01T00:00:00Zhttps://doi.org/10.1038/s41699-021-00223-2https://doaj.org/toc/2397-7132Abstract The detection of ions and molecules in liquids has been receiving considerable attention for the realization of the electronic tongue. Solution-gated field-effect transistors (SFETs) with high sensitivity are useful for detecting ions and molecules by reading electrical transconductance. However, to date, ionic and molecular sensors that employ SFETs have limitations, such as the lack of a dynamic on–off function and low selectivity. In this study, we evaluate rationally designed graphene SFETs as pH and glucose-selective sensors. The integration of the microfluidic channel to the graphene SFET exhibits dynamic on–off functions by controlling injection and withdrawal of solutions. The graphene SFET device exhibits high pH and glucose selectivity when coated with Nafion as a molecular sieve and Au-decorated nanoparticles as receptors, respectively. The dynamic on–off functions and high selectivity of SFETs with tailored graphene channels have a high potential for advancing as a platform for electronic tongues by integrating the separate SFETs as an array for simultaneous sensing of multiple targets.Chung Won LeeJun Min SuhSeokhoon ChoiSang Eon JunTae Hyung LeeJin Wook YangSol A LeeBo Reum LeeDonghyeon YooSoo Young KimDong Sung KimHo Won JangNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ChemistryQD1-999ENnpj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 Chung Won Lee Jun Min Suh Seokhoon Choi Sang Eon Jun Tae Hyung Lee Jin Wook Yang Sol A Lee Bo Reum Lee Donghyeon Yoo Soo Young Kim Dong Sung Kim Ho Won Jang Surface-tailored graphene channels
description	Abstract The detection of ions and molecules in liquids has been receiving considerable attention for the realization of the electronic tongue. Solution-gated field-effect transistors (SFETs) with high sensitivity are useful for detecting ions and molecules by reading electrical transconductance. However, to date, ionic and molecular sensors that employ SFETs have limitations, such as the lack of a dynamic on–off function and low selectivity. In this study, we evaluate rationally designed graphene SFETs as pH and glucose-selective sensors. The integration of the microfluidic channel to the graphene SFET exhibits dynamic on–off functions by controlling injection and withdrawal of solutions. The graphene SFET device exhibits high pH and glucose selectivity when coated with Nafion as a molecular sieve and Au-decorated nanoparticles as receptors, respectively. The dynamic on–off functions and high selectivity of SFETs with tailored graphene channels have a high potential for advancing as a platform for electronic tongues by integrating the separate SFETs as an array for simultaneous sensing of multiple targets.
format	article
author	Chung Won Lee Jun Min Suh Seokhoon Choi Sang Eon Jun Tae Hyung Lee Jin Wook Yang Sol A Lee Bo Reum Lee Donghyeon Yoo Soo Young Kim Dong Sung Kim Ho Won Jang
author_facet	Chung Won Lee Jun Min Suh Seokhoon Choi Sang Eon Jun Tae Hyung Lee Jin Wook Yang Sol A Lee Bo Reum Lee Donghyeon Yoo Soo Young Kim Dong Sung Kim Ho Won Jang
author_sort	Chung Won Lee
title	Surface-tailored graphene channels
title_short	Surface-tailored graphene channels
title_full	Surface-tailored graphene channels
title_fullStr	Surface-tailored graphene channels
title_full_unstemmed	Surface-tailored graphene channels
title_sort	surface-tailored graphene channels
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c14f6404d8f9455f8c2e0368334d7045
work_keys_str_mv	AT chungwonlee surfacetailoredgraphenechannels AT junminsuh surfacetailoredgraphenechannels AT seokhoonchoi surfacetailoredgraphenechannels AT sangeonjun surfacetailoredgraphenechannels AT taehyunglee surfacetailoredgraphenechannels AT jinwookyang surfacetailoredgraphenechannels AT solalee surfacetailoredgraphenechannels AT boreumlee surfacetailoredgraphenechannels AT donghyeonyoo surfacetailoredgraphenechannels AT sooyoungkim surfacetailoredgraphenechannels AT dongsungkim surfacetailoredgraphenechannels AT howonjang surfacetailoredgraphenechannels
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Surface-tailored graphene channels

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