Vertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform

Three-dimensional (3D) electrochemiluminescence (ECL) platform with high sensitivity and good anti-fouling is highly desirable for direct and sensitive analysis of complex samples. Herein, a novel ECL-sensing platform is demonstrated based on the equipment of vertically ordered mesoporous silica-nan...

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Autores principales:	Jiawei Gong, Hongliang Tang, Xuan Luo, Huaxu Zhou, Xueting Lin, Kailong Wang, Fei Yan, Fengna Xi, Jiyang Liu
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	three-dimensional graphene electrochemiluminescence sensor vertically ordered mesoporous silica-nanochannel film 4-chlorophenol chlorpheniramine Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/6d1ef2f3c49a40c7842b5a662911a306
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spelling	oai:doaj.org-article:6d1ef2f3c49a40c7842b5a662911a3062021-11-22T04:39:25ZVertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform2296-264610.3389/fchem.2021.770512https://doaj.org/article/6d1ef2f3c49a40c7842b5a662911a3062021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fchem.2021.770512/fullhttps://doaj.org/toc/2296-2646Three-dimensional (3D) electrochemiluminescence (ECL) platform with high sensitivity and good anti-fouling is highly desirable for direct and sensitive analysis of complex samples. Herein, a novel ECL-sensing platform is demonstrated based on the equipment of vertically ordered mesoporous silica-nanochannel films (VMSF) on monolithic and macroporous 3D graphene (3DG). Through electrografting of 3-aminopropyltriethoxysilane (APTES) onto 3DG as molecular glue, VMSF grown by electrochemically assisted self-assembly (EASA) method fully covers 3DG surface and displays high stability. The developed VMSF/APTES/3DG sensor exhibits highly sensitized ECL response of tris(2,2′-bipyridyl) ruthenium (Ru (bpy)32+) taking advantages of the unique characteristics of 3DG (high active area and conductivity) and VMSF nanochannels (strong electrostatic enrichment). The VMSF/APTES/3DG sensor is applied to sensitively detect an important environmental pollutant (4-chlorophenol, with limit of detection or LOD of 30.3 nM) in term of its quenching effect (ECL signal-off mode) toward ECL of Ru (bpy)32+/tri-n-propylamine (TPrA). The VMSF/APTES/3DG sensor can also sensitively detect the most effective antihistamines chlorpheniramine (with LOD of 430 nM) using ECL signal-on mode because it acts as co-reactant to promote the ECL of Ru (bpy)32+. Combined with the excellent antifouling ability of VMSF, the sensor can also realize the analysis of actual environmental (lake water) and pharmaceutical (pharmacy tablet) samples. The proposed 3D ECL sensor may open new avenues to develop highly sensitive ECL-sensing platform.Jiawei GongHongliang TangXuan LuoHuaxu ZhouXueting LinKailong WangFei YanFengna XiJiyang LiuFrontiers Media S.A.articlethree-dimensional grapheneelectrochemiluminescence sensorvertically ordered mesoporous silica-nanochannel film4-chlorophenolchlorpheniramineChemistryQD1-999ENFrontiers in Chemistry, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	three-dimensional graphene electrochemiluminescence sensor vertically ordered mesoporous silica-nanochannel film 4-chlorophenol chlorpheniramine Chemistry QD1-999
spellingShingle	three-dimensional graphene electrochemiluminescence sensor vertically ordered mesoporous silica-nanochannel film 4-chlorophenol chlorpheniramine Chemistry QD1-999 Jiawei Gong Hongliang Tang Xuan Luo Huaxu Zhou Xueting Lin Kailong Wang Fei Yan Fengna Xi Jiyang Liu Vertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform
description	Three-dimensional (3D) electrochemiluminescence (ECL) platform with high sensitivity and good anti-fouling is highly desirable for direct and sensitive analysis of complex samples. Herein, a novel ECL-sensing platform is demonstrated based on the equipment of vertically ordered mesoporous silica-nanochannel films (VMSF) on monolithic and macroporous 3D graphene (3DG). Through electrografting of 3-aminopropyltriethoxysilane (APTES) onto 3DG as molecular glue, VMSF grown by electrochemically assisted self-assembly (EASA) method fully covers 3DG surface and displays high stability. The developed VMSF/APTES/3DG sensor exhibits highly sensitized ECL response of tris(2,2′-bipyridyl) ruthenium (Ru (bpy)32+) taking advantages of the unique characteristics of 3DG (high active area and conductivity) and VMSF nanochannels (strong electrostatic enrichment). The VMSF/APTES/3DG sensor is applied to sensitively detect an important environmental pollutant (4-chlorophenol, with limit of detection or LOD of 30.3 nM) in term of its quenching effect (ECL signal-off mode) toward ECL of Ru (bpy)32+/tri-n-propylamine (TPrA). The VMSF/APTES/3DG sensor can also sensitively detect the most effective antihistamines chlorpheniramine (with LOD of 430 nM) using ECL signal-on mode because it acts as co-reactant to promote the ECL of Ru (bpy)32+. Combined with the excellent antifouling ability of VMSF, the sensor can also realize the analysis of actual environmental (lake water) and pharmaceutical (pharmacy tablet) samples. The proposed 3D ECL sensor may open new avenues to develop highly sensitive ECL-sensing platform.
format	article
author	Jiawei Gong Hongliang Tang Xuan Luo Huaxu Zhou Xueting Lin Kailong Wang Fei Yan Fengna Xi Jiyang Liu
author_facet	Jiawei Gong Hongliang Tang Xuan Luo Huaxu Zhou Xueting Lin Kailong Wang Fei Yan Fengna Xi Jiyang Liu
author_sort	Jiawei Gong
title	Vertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform
title_short	Vertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform
title_full	Vertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform
title_fullStr	Vertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform
title_full_unstemmed	Vertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform
title_sort	vertically ordered mesoporous silica-nanochannel film-equipped three-dimensional macroporous graphene as sensitive electrochemiluminescence platform
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/6d1ef2f3c49a40c7842b5a662911a306
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Vertically Ordered Mesoporous Silica-Nanochannel Film-Equipped Three-Dimensional Macroporous Graphene as Sensitive Electrochemiluminescence Platform

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