Li Dong , Yicheng Zhou , Tongtong Cao , Jing Zhu , Xiaobo Zhang , Lin Liu , Zhiwei Tong
{"title":"利用原位聚合法合成用于检测多巴胺和尿酸的聚苯胺/铌酸镧纳米复合材料","authors":"Li Dong , Yicheng Zhou , Tongtong Cao , Jing Zhu , Xiaobo Zhang , Lin Liu , Zhiwei Tong","doi":"10.1016/j.materresbull.2024.113083","DOIUrl":null,"url":null,"abstract":"<div><p>A novel 2D layered nanocomposite was synthesized by <em>in situ</em> polymerization by incorporating aniline into the HLaNb<sub>2</sub>O<sub>7</sub> host matrix. This innovative nanocomposite uniquely combines the electroactive properties of polyaniline with the structural stability and ion-exchange capabilities of lanthanum niobate, resulting in a material with superior electrochemical performance. Characterization of the composites was performed using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. Electrochemical assays revealed that the PANI/LaNb<sub>2</sub>O<sub>7</sub> nanocomposite modified glassy carbon electrode could concurrently detect dopamine and uric acid, respectively. The detection limits were determined to be 0.04 μM for DA and 0.61 μM for UA. The enhanced sensitivity, selectivity, and stability of this nanocomposite make it a promising candidate for advanced electrochemical sensors, particularly in biomedical applications where precise detection of biomolecules is crucial.</p></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"181 ","pages":"Article 113083"},"PeriodicalIF":5.3000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0025540824004148/pdfft?md5=dfc4fb404a70f7389d9d9f07860e09b1&pid=1-s2.0-S0025540824004148-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Synthesis of polyaniline/lanthanum niobate nanocomposites by in situ polymerization for the detection of dopamine and uric acid\",\"authors\":\"Li Dong , Yicheng Zhou , Tongtong Cao , Jing Zhu , Xiaobo Zhang , Lin Liu , Zhiwei Tong\",\"doi\":\"10.1016/j.materresbull.2024.113083\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A novel 2D layered nanocomposite was synthesized by <em>in situ</em> polymerization by incorporating aniline into the HLaNb<sub>2</sub>O<sub>7</sub> host matrix. This innovative nanocomposite uniquely combines the electroactive properties of polyaniline with the structural stability and ion-exchange capabilities of lanthanum niobate, resulting in a material with superior electrochemical performance. Characterization of the composites was performed using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. Electrochemical assays revealed that the PANI/LaNb<sub>2</sub>O<sub>7</sub> nanocomposite modified glassy carbon electrode could concurrently detect dopamine and uric acid, respectively. The detection limits were determined to be 0.04 μM for DA and 0.61 μM for UA. The enhanced sensitivity, selectivity, and stability of this nanocomposite make it a promising candidate for advanced electrochemical sensors, particularly in biomedical applications where precise detection of biomolecules is crucial.</p></div>\",\"PeriodicalId\":18265,\"journal\":{\"name\":\"Materials Research Bulletin\",\"volume\":\"181 \",\"pages\":\"Article 113083\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0025540824004148/pdfft?md5=dfc4fb404a70f7389d9d9f07860e09b1&pid=1-s2.0-S0025540824004148-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Research Bulletin\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0025540824004148\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Research Bulletin","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025540824004148","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Synthesis of polyaniline/lanthanum niobate nanocomposites by in situ polymerization for the detection of dopamine and uric acid
A novel 2D layered nanocomposite was synthesized by in situ polymerization by incorporating aniline into the HLaNb2O7 host matrix. This innovative nanocomposite uniquely combines the electroactive properties of polyaniline with the structural stability and ion-exchange capabilities of lanthanum niobate, resulting in a material with superior electrochemical performance. Characterization of the composites was performed using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. Electrochemical assays revealed that the PANI/LaNb2O7 nanocomposite modified glassy carbon electrode could concurrently detect dopamine and uric acid, respectively. The detection limits were determined to be 0.04 μM for DA and 0.61 μM for UA. The enhanced sensitivity, selectivity, and stability of this nanocomposite make it a promising candidate for advanced electrochemical sensors, particularly in biomedical applications where precise detection of biomolecules is crucial.
期刊介绍：
Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.
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