{"title":"AgInS2 和 CuInS2 双近红外共敏化氧化锌光电电极阵列实现了纸基比率光电化学感应","authors":"Hong-Mei Yang, Chuan-Yi Tu, Yi-Lin Zhuang, Yu-Heng Li, Yu-Xin Hao, Qiu-Yi Li, Li-Na Zhang, Jing-Hua Yu, Yan Zhang","doi":"10.1007/s12598-024-02874-8","DOIUrl":null,"url":null,"abstract":"<p>Herein, a dual near-infrared (NIR)-response AgInS<sub>2</sub> and CuInS<sub>2</sub> co-sensitized ZnO photoelectrode array consisting of two spatial-resolved paper working electrodes (PWE<sub>1</sub> and PWE<sub>2</sub>) was established to enable paper-based ratiometric photoelectrochemical (PEC) aptasensing of Di(2-ethylhexyl)phthalate (DEHP) based on triple-helix molecular switch (THMS)-mediated “on–off” switching of co-sensitization effect. Profiting from the co-sensitization of AgInS<sub>2</sub> and CuInS<sub>2</sub> on paper-based ZnO, the dual NIR-response cascade sensitization structure of AgInS<sub>2</sub>/CuInS<sub>2</sub>/ZnO exhibited a wide light response range and high charge separation efficiency, giving a “switch on” state of co-sensitization effect with markedly high photocurrent response. The “switch off” state of the co-sensitization effect was made by RecJf exonuclease-assisted target recycling-induced conformation change of THMS, which caused the detachment of AgInS<sub>2</sub> quantum dots from the aptasensing interface, leading to a significantly decreased photocurrent signal. Accordingly, the constant <i>I</i><sub>1</sub> of PWE<sub>1</sub> and varying <i>I</i><sub>2</sub> of PWE<sub>2</sub> were collected based on the incubation of constant concentration of DEHP on PWE<sub>1</sub> and various concentrations of DEHP on PWE<sub>2</sub>. The ultrasensitive detection of DEHP was realized by calculating the ratio of <i>I</i><sub>2</sub>/<i>I</i><sub>1</sub>. This work brought new insights into the establishment of a high-performance paper-based ratiometric PEC aptasensing platform for highly sensitive quantification of DEHP.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"9 1","pages":""},"PeriodicalIF":9.6000,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dual near-infrared AgInS2 and CuInS2 co-sensitized ZnO photoelectrode array enabled paper-based ratiometric photoelectrochemical aptasensing\",\"authors\":\"Hong-Mei Yang, Chuan-Yi Tu, Yi-Lin Zhuang, Yu-Heng Li, Yu-Xin Hao, Qiu-Yi Li, Li-Na Zhang, Jing-Hua Yu, Yan Zhang\",\"doi\":\"10.1007/s12598-024-02874-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Herein, a dual near-infrared (NIR)-response AgInS<sub>2</sub> and CuInS<sub>2</sub> co-sensitized ZnO photoelectrode array consisting of two spatial-resolved paper working electrodes (PWE<sub>1</sub> and PWE<sub>2</sub>) was established to enable paper-based ratiometric photoelectrochemical (PEC) aptasensing of Di(2-ethylhexyl)phthalate (DEHP) based on triple-helix molecular switch (THMS)-mediated “on–off” switching of co-sensitization effect. Profiting from the co-sensitization of AgInS<sub>2</sub> and CuInS<sub>2</sub> on paper-based ZnO, the dual NIR-response cascade sensitization structure of AgInS<sub>2</sub>/CuInS<sub>2</sub>/ZnO exhibited a wide light response range and high charge separation efficiency, giving a “switch on” state of co-sensitization effect with markedly high photocurrent response. The “switch off” state of the co-sensitization effect was made by RecJf exonuclease-assisted target recycling-induced conformation change of THMS, which caused the detachment of AgInS<sub>2</sub> quantum dots from the aptasensing interface, leading to a significantly decreased photocurrent signal. Accordingly, the constant <i>I</i><sub>1</sub> of PWE<sub>1</sub> and varying <i>I</i><sub>2</sub> of PWE<sub>2</sub> were collected based on the incubation of constant concentration of DEHP on PWE<sub>1</sub> and various concentrations of DEHP on PWE<sub>2</sub>. The ultrasensitive detection of DEHP was realized by calculating the ratio of <i>I</i><sub>2</sub>/<i>I</i><sub>1</sub>. This work brought new insights into the establishment of a high-performance paper-based ratiometric PEC aptasensing platform for highly sensitive quantification of DEHP.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical abstract</h3>\",\"PeriodicalId\":749,\"journal\":{\"name\":\"Rare Metals\",\"volume\":\"9 1\",\"pages\":\"\"},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2024-07-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rare Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s12598-024-02874-8\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rare Metals","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s12598-024-02874-8","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Herein, a dual near-infrared (NIR)-response AgInS2 and CuInS2 co-sensitized ZnO photoelectrode array consisting of two spatial-resolved paper working electrodes (PWE1 and PWE2) was established to enable paper-based ratiometric photoelectrochemical (PEC) aptasensing of Di(2-ethylhexyl)phthalate (DEHP) based on triple-helix molecular switch (THMS)-mediated “on–off” switching of co-sensitization effect. Profiting from the co-sensitization of AgInS2 and CuInS2 on paper-based ZnO, the dual NIR-response cascade sensitization structure of AgInS2/CuInS2/ZnO exhibited a wide light response range and high charge separation efficiency, giving a “switch on” state of co-sensitization effect with markedly high photocurrent response. The “switch off” state of the co-sensitization effect was made by RecJf exonuclease-assisted target recycling-induced conformation change of THMS, which caused the detachment of AgInS2 quantum dots from the aptasensing interface, leading to a significantly decreased photocurrent signal. Accordingly, the constant I1 of PWE1 and varying I2 of PWE2 were collected based on the incubation of constant concentration of DEHP on PWE1 and various concentrations of DEHP on PWE2. The ultrasensitive detection of DEHP was realized by calculating the ratio of I2/I1. This work brought new insights into the establishment of a high-performance paper-based ratiometric PEC aptasensing platform for highly sensitive quantification of DEHP.
期刊介绍：
Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.
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