Integration of vertically-ordered mesoporous silica-nanochannel film with electro-activated glassy carbon electrode for improved electroanalysis in complex samples

Xuan, Lingli; Liao, Wenyan; Wang, Meifang; Zhou, Huaxu; Ding, Yao; Yan, Fei; Liu, Jiyang; Tang, Hongliang; Xi, Fengna

doi:10.1016/j.talanta.2020.122066

Cited by 20 publications

(17 citation statements)

References 46 publications

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“…This is mainly ascribed to the increase of the electroactive surface and electrocatalytic ability through electrochemical activation (Figure 3B). (Xuan et al, 2021) Owing to the interaction between the abundant silanol groups on the nanochannel surface and phenolic hydroxyl groups on BPA through hydrogen bond, the oxidation current of BPA further increases after equipment of the VMSF on p-GCE (Figure 3B). Due to the enrichment effect from both the supporting electrode and nanochannels, the VMSF/p-GCE can realize dual-signal amplification, leading to high sensitivity in detection.…”

Section: Enhanced Electrochemical Response Of Bpa On Vmsf/p-gcementioning

confidence: 99%

“…Electrochemical sensors could offer a unique combination of key merits including simple instrument, convenient operation, and high sensitivity. (Liu et al, 2020;Sabbaghan et al, 2021;Xuan et al, 2021;Ghalkhani and Sohouli, 2022) The electroactive phenolic hydroxyl groups in BPA enable its detection by electrochemical sensing. To improve the detection sensitivity, researchers have used a variety of materials to modify the working electrode, including metal or metal oxide nanoparticles (Ashraf et al, 2020;Wang et al, 2020b;Yang et al, 2022), carbon materials (Yasri et al, 2015;Alam and Deen, 2020;Zhu et al, 2020;Ponnada et al, 2022;Wang et al, 2022), ionic liquids (Wang et al, 2018;Wang et al, 2021b), molecularly imprinted polymers (Beduk et al, 2020;Zhang et al, 2021), metals and covalent organic frameworks (Zhang et al, 2018;Pang et al, 2020), and aptamers (Hadi et al, 2016;Jun et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The VMSF has highly ordered and uniform nanochannels (usually 2-3 nm in diameter), high porosity (~75,000 pore/μm (Takayanagi et al, 2006)), and ultrathin nanoscale thickness (commonly 50-200 nm). (Herzog et al, 2013;Nasir et al, 2016;Nasir et al, 2018;Li et al, 2019a;Ding et al, 2020;Ma et al, 2020;Yan et al, 2020;Yan et al, 2021a;Yan et al, 2021b;Wang et al, 2021c;Xiao et al, 2021;Xuan et al, 2021;Zhou et al, 2022) On the one hand, high-density nanochannels offer good permeability. On the other hand, the ultrasmall nanopore structure of the VMSF exhibits remarkable size and charge selectivity.…”

Section: Introductionmentioning

confidence: 99%

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Direct and Sensitive Electrochemical Detection of Bisphenol A in Complex Environmental Samples Using a Simple and Convenient Nanochannel-Modified Electrode

Huang

Zhang

Dong³

et al. 2022

Front. Chem.

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Rapid, convenient, and sensitive detection of Bisphenol A (BPA) in complex environmental samples without the need for tedious pre-treatment is crucial for assessing potential health risks. Herein, we present an electrochemical sensing platform using a simple nanochannel-modified electrode, which enables the direct and sensitive detection of BPA in complex samples. A vertically ordered mesoporous silica-nanochannel film (VMSF) with high-density nanochannels is rapidly and stably grown on the surface of a electrochemically activated glassy carbon electrode (p-GCE) by using the electrochemically assisted self-assembly (EASA) method. The high antifouling capability of the VMSF/p-GCE sensor is proven by investigating the electrochemical behavior of BPA in the presence of model coexisting interfering molecules including amylum, protein, surfactant, and humic acid. The VMSF/p-GCE sensor can sensitively detect BPA ranged from 50 to 1.0 μM and 1.0–10.0 μM, with low detection limits (15 nM). Owing to the electrocatalytic performance and high potential resolution of p-GCE, the sensor exhibits high selectivity for BPA detection in the presence of common environmental pollutants, including bisphenol S (BPS), catechol (CC), hydroquinone (HQ), and 4-nitrophenol (4-NP). In combination with the good antifouling property of the VMSF, direct detection of BPA in environmental water samples and soil leaching solution (SLS) is also realized without separation pretreatment. The developed VMSF/p-GCE sensor demonstrated advantages of simple structure, high sensitivity, good antifouling performance, and great potential in direct electroanalysis of endocrine-disrupting compounds in complex samples.

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Section: Enhanced Electrochemical Response Of Bpa On Vmsf/p-gcementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Direct and Sensitive Electrochemical Detection of Bisphenol A in Complex Environmental Samples Using a Simple and Convenient Nanochannel-Modified Electrode

Huang

Zhang

Dong³

et al. 2022

Front. Chem.

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“…We also used electro-activated GCE as the supporting electrode to grow SNF. Due to the introduction of functional oxygen-containing groups into electro-activated GCE, the fabricated sensor exhibited high electrocatalytic performance ( Xuan et al, 2021 ). Compared with methods based on modifying nanochannels to introduce functionality, these strategies using functionally supporting electrode substrates are simpler and more convenient.…”

Section: Introductionmentioning

confidence: 99%

Silica Nanochannel Array Film Supported by ß-Cyclodextrin-Functionalized Graphene Modified Gold Film Electrode for Sensitive and Direct Electroanalysis of Acetaminophen

Zhou

Ding

et al. 2022

Front. Chem.

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Convenient and sensitive detection of active analytes in complex matrix is crucial in biological, medical, and environmental analysis. Silica nanochannel array film (SNF) equipped electrochemical sensors have shown excellent anti-fouling performance in direct analysis of complex samples. In this work, we demonstrated an electrochemical sensor with anti-fouling performance for highly sensitive detection of acetaminophen (APAP) based on SNF supported by ß-cyclodextrin-graphene (CDG) nanocomposite modified Au film electrode (AuF). Because of their rich surface hydroxyls and 2D lamellar structure, CDG on AuF can serve as the nanoadhesive for compact binding SNF, which can be grown by electrochemical assisted self-assembly method in a few seconds. Attributable to the electrocatalytic property of graphene and the synergistic enrichment from both CD and SNF nanochannels towards analyte, the SNF/CDG/AuF sensor demonstrates sensitive detection of acetaminophen ranged from 0.2 to 50 μM with an ultralow limit-of-detection of 14 nM. Taking advantage of the anti-fouling ability of SNF, the sensor is able to realize accurate and convenient analysis of APAP in commercially available paracetamol tablets.

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“…Currently, VMSF supported by indium tin oxide (ITO) electrode is rather stable and could be fabricated by using electrochemically-assisted self-assembly (EASA) and Stöber-solution approaches ( Zhou et al, 2019 ; Walcarius, 2021 ). Premodification of molecular glues [e.g., organosilanes ( Nasir et al, 2018 ; Gong et al, 2021b ) or reduced graphene oxide (rGO) nanosheets ( Yan et al, 2020b ; Ma et al, 2022b )] and pretreatment process [e.g., electro-activation ( Xuan et al, 2021 ; Wang et al, 2022 ) or plasma ( Zhu et al, 2022 )] can stably prepare VMSF on the other commercial conductive electrodes (e.g., metal electrode or carbonaceous electrode). As our group reported recently, the introduction of rGO as an adhesive and electroactive layer onto the electrode surface is capable of maintaining the well-oriented nanochannel structures of VMSF and greatly improving the sensitivity and selectivity of electrochemical sensors ( Xi et al, 2019 ; Yan et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Vertically-Ordered Mesoporous Silica Films Grown on Boron Nitride-Graphene Composite Modified Electrodes for Rapid and Sensitive Detection of Carbendazim in Real Samples

et al. 2022

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Carbendazim (CBZ), a kind of widely used pesticide, is harmful to human health and environmental ecology. Therefore, it is of great importance to detect CBZ in real samples. Herein we report the stable growth of vertically-ordered mesoporous silica films (VMSF) on the glassy carbon electrode (GCE) using boron nitride-reduced graphene oxide (BN-rGO) nanocomposite as an adhesive and electroactive layer. Oxygen-containing groups of rGO and 2D planar structure of BN-rGO hybrid favor the stable growth of VMSF via the electrochemically assisted self-assembly (EASA) method. Combining the good electrocatalytic activity of BN-rGO and the enrichment effect of VMSF, the proposed VMSF/BN-rGO/GCE can detect CBZ with high sensitivity (3.70 μA/μM), a wide linear range (5 nM–7 μM) and a low limit of detection (2 nM). Furthermore, due to the inherent anti-fouling and anti-interference capacity of VMSF, direct and rapid electrochemical analyses of CBZ in pond water and grape juice samples are also achieved without the use of complicated sample treatment processes.

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Integration of vertically-ordered mesoporous silica-nanochannel film with electro-activated glassy carbon electrode for improved electroanalysis in complex samples

Cited by 20 publications

References 46 publications

Direct and Sensitive Electrochemical Detection of Bisphenol A in Complex Environmental Samples Using a Simple and Convenient Nanochannel-Modified Electrode

Direct and Sensitive Electrochemical Detection of Bisphenol A in Complex Environmental Samples Using a Simple and Convenient Nanochannel-Modified Electrode

Silica Nanochannel Array Film Supported by ß-Cyclodextrin-Functionalized Graphene Modified Gold Film Electrode for Sensitive and Direct Electroanalysis of Acetaminophen

Vertically-Ordered Mesoporous Silica Films Grown on Boron Nitride-Graphene Composite Modified Electrodes for Rapid and Sensitive Detection of Carbendazim in Real Samples

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