A non-enzymatic glucose sensor construct from 3D core-shell structure of NiCo layered double hydroxide coated Ag nanowires based on screen printing electrode
{"title":"A non-enzymatic glucose sensor construct from 3D core-shell structure of NiCo layered double hydroxide coated Ag nanowires based on screen printing electrode","authors":"Yueyun Huang, Jiahua You, Yingru Ding, Haijuan Mei, Ke Li, Hongping Liang, Guoqiang Yang, Weiping Gong, Zhenting Zhao","doi":"10.1016/j.apsusc.2025.162627","DOIUrl":null,"url":null,"abstract":"Monitoring the glucose concentration in blood makes a great difference on diabetes diagnosis. Herein, we successfully fabricated a kind of 3D hierarchical structure which is NiCo-LDH nanoflower interconnected around Ag nanowires (NiCo-LDH@Ag NWs). The hierarchical core–shell structure offers a large specific surface area and exposing more catalytic sites for electrocatalysis which is benefit for glucose sensing The NiCo-LDH@Ag NWs was dispersed in nafion and modified on screen printing electrode (SPE) to develop portable sensor which marked as NiCo-LDH@Ag NWs/SPE. The as-prepared sensor presents outstanding electrocatalytic ability towards glucose oxidation, including a large detection scale range from 5 μM to 4.5 mM, a sensitivity of 0.52 μA/μM/cm<sup>2</sup>, fast amperometric response/recovery time of 7/7s, good selective, as well as long-time stability. A portable sensing setup, integrating the prepared sensor with a portable potentiostat and smartphone, has been developed. The experimental findings underscore the high performance of the NiCo-LDH@Ag NWs/SPE sensor within this compact detection framework.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"224 1","pages":""},"PeriodicalIF":6.3000,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Surface Science","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.apsusc.2025.162627","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Monitoring the glucose concentration in blood makes a great difference on diabetes diagnosis. Herein, we successfully fabricated a kind of 3D hierarchical structure which is NiCo-LDH nanoflower interconnected around Ag nanowires (NiCo-LDH@Ag NWs). The hierarchical core–shell structure offers a large specific surface area and exposing more catalytic sites for electrocatalysis which is benefit for glucose sensing The NiCo-LDH@Ag NWs was dispersed in nafion and modified on screen printing electrode (SPE) to develop portable sensor which marked as NiCo-LDH@Ag NWs/SPE. The as-prepared sensor presents outstanding electrocatalytic ability towards glucose oxidation, including a large detection scale range from 5 μM to 4.5 mM, a sensitivity of 0.52 μA/μM/cm2, fast amperometric response/recovery time of 7/7s, good selective, as well as long-time stability. A portable sensing setup, integrating the prepared sensor with a portable potentiostat and smartphone, has been developed. The experimental findings underscore the high performance of the NiCo-LDH@Ag NWs/SPE sensor within this compact detection framework.
期刊介绍:
Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.