An enhanced photo-electrochemical sensor constructed from pillar [5]arene functionalized Au NPs for ultrasensitive detection of caffeic acid

Pillar [5]arene, a new water-soluble carboxylatopillar [5]arene ammonium salts (WP5), has been employed as the host for complexation of guest molecules. Herein, a visible light driven WP5 functionalized gold nanoparticles (Au@WP5) was fabricated for ultrasensitive photelectrochemical (PEC) detection...

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Veröffentlicht in:Talanta (Oxford) 2022-06, Vol.243, p.123322-123322, Article 123322
Hauptverfasser: Wang, Jin, Zhou, Lin, Bei, Jiali, Zhao, Qiyuan, Li, Xue, He, Jiaqi, Cai, Yan, Chen, Tingting, Du, Yukou, Yao, Yong
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container_title Talanta (Oxford)
container_volume 243
creator Wang, Jin
Zhou, Lin
Bei, Jiali
Zhao, Qiyuan
Li, Xue
He, Jiaqi
Cai, Yan
Chen, Tingting
Du, Yukou
Yao, Yong
description Pillar [5]arene, a new water-soluble carboxylatopillar [5]arene ammonium salts (WP5), has been employed as the host for complexation of guest molecules. Herein, a visible light driven WP5 functionalized gold nanoparticles (Au@WP5) was fabricated for ultrasensitive photelectrochemical (PEC) detection of caffeic acid (CA). The ultraviolet–visible spectrum characteristics, PEC response results of samples in caffeic acid solution confirm the localized surface plasmon resonance effect of Au NPs and the host-guest interaction between WP5 and CA are responsible for the enhanced PEC sensing performance. Under optimal conditions, the sensitive PEC sensor constructed with Au@WP5 exhibited the concentration linear range from 0.025 μM to 370 μM and a detection limit of 0.01 μM (S/N = 3). Importantly, the good anti-interference ability, stability and reproducibility of the proposed PEC sensor providing the promising detection application of pillar [5]arene functionalized photoactive materials in food and drinks. [Display omitted] •Pillararene functionalized Au nanoparticles (Au@WP5) were prepared via simply ultrasonic self-assembly method.•An enhanced photo-electrochemical sensor was fabricated based on Au@WP5.•Au@WP5 photo-electrochemical sensor is ultrasensitive in caffeic acid detection.•The LSPR effect of Au NPs and the host-guest interaction between WP5 and CA are responsible for the enhanced PEC sensing.•The proposed sensor displays low detection limit and specific detection ability.
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[Display omitted] •Pillararene functionalized Au nanoparticles (Au@WP5) were prepared via simply ultrasonic self-assembly method.•An enhanced photo-electrochemical sensor was fabricated based on Au@WP5.•Au@WP5 photo-electrochemical sensor is ultrasensitive in caffeic acid detection.•The LSPR effect of Au NPs and the host-guest interaction between WP5 and CA are responsible for the enhanced PEC sensing.•The proposed sensor displays low detection limit and specific detection ability.</description><identifier>ISSN: 0039-9140</identifier><identifier>EISSN: 1873-3573</identifier><identifier>DOI: 10.1016/j.talanta.2022.123322</identifier><identifier>PMID: 35228106</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Au nanoparticles ; Biosensing Techniques - methods ; Caffeic acid ; Caffeic Acids ; Electrochemical Techniques - methods ; Gold - chemistry ; Limit of Detection ; Local surface plasmon resonance effect ; Metal Nanoparticles - chemistry ; Photoelectrochemical detection ; Pillararenes ; Reproducibility of Results</subject><ispartof>Talanta (Oxford), 2022-06, Vol.243, p.123322-123322, Article 123322</ispartof><rights>2022 Elsevier B.V.</rights><rights>Copyright © 2022 Elsevier B.V. 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[Display omitted] •Pillararene functionalized Au nanoparticles (Au@WP5) were prepared via simply ultrasonic self-assembly method.•An enhanced photo-electrochemical sensor was fabricated based on Au@WP5.•Au@WP5 photo-electrochemical sensor is ultrasensitive in caffeic acid detection.•The LSPR effect of Au NPs and the host-guest interaction between WP5 and CA are responsible for the enhanced PEC sensing.•The proposed sensor displays low detection limit and specific detection ability.</description><subject>Au nanoparticles</subject><subject>Biosensing Techniques - methods</subject><subject>Caffeic acid</subject><subject>Caffeic Acids</subject><subject>Electrochemical Techniques - methods</subject><subject>Gold - chemistry</subject><subject>Limit of Detection</subject><subject>Local surface plasmon resonance effect</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Photoelectrochemical detection</subject><subject>Pillararenes</subject><subject>Reproducibility of Results</subject><issn>0039-9140</issn><issn>1873-3573</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkctuFDEURK0IRIbAJwR5yaYHP9r9WKFRFB5SBFnACiHLffta41G3PbHdkcI38NHxMEO2Wd3NqbqqKkIuOVtzxpsPu3U2k_HZrAUTYs2FlEKckRXvWllJ1coXZMWY7Kue1-ycvE5pxxgTkslX5FwqITrOmhX5u_EU_dZ4wJHutyGHCieEHANscXZgJprQpxApBJ9yXCAX0MYw072bJhPpL_XbRPRI7eIhu-DN5P4UZrPQb7eJ2iJdphzNwcZld490xIz_SBosBWMtOqAG3PiGvLRmSvj2dC_Iz0_XP66-VDffP3-92txUIBuVq8GokYsSpR5A1d1gZW27vuVd3zdtawwXIFvFeemlw86Kpu4BB8t4iT2ovpEX5P3Rdx_D3YIp69klwBLHY1iSFo2sO8UbVRdUHVGIIaWIVu-jm0180JzpwxB6p09D6MMQ-jhE0b07vViGGccn1f_mC_DxCGAJeu8w6gQODzO4WNrRY3DPvHgEpyedxw</recordid><startdate>20220601</startdate><enddate>20220601</enddate><creator>Wang, Jin</creator><creator>Zhou, Lin</creator><creator>Bei, Jiali</creator><creator>Zhao, Qiyuan</creator><creator>Li, Xue</creator><creator>He, Jiaqi</creator><creator>Cai, Yan</creator><creator>Chen, Tingting</creator><creator>Du, Yukou</creator><creator>Yao, Yong</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20220601</creationdate><title>An enhanced photo-electrochemical sensor constructed from pillar [5]arene functionalized Au NPs for ultrasensitive detection of caffeic acid</title><author>Wang, Jin ; 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subjects Au nanoparticles
Biosensing Techniques - methods
Caffeic acid
Caffeic Acids
Electrochemical Techniques - methods
Gold - chemistry
Limit of Detection
Local surface plasmon resonance effect
Metal Nanoparticles - chemistry
Photoelectrochemical detection
Pillararenes
Reproducibility of Results
title An enhanced photo-electrochemical sensor constructed from pillar [5]arene functionalized Au NPs for ultrasensitive detection of caffeic acid
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