Dual-function graphene sensor as an ion-sensitive field-effect transistor and ion-sensitive electrode for arsenite detection

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2025-05-13 DOI:10.1016/j.carbon.2025.120419

Yingming Xu, Peng Zhou, Terrence Simon, Tianhong Cui

{"title":"Dual-function graphene sensor as an ion-sensitive field-effect transistor and ion-sensitive electrode for arsenite detection","authors":"Yingming Xu, Peng Zhou, Terrence Simon, Tianhong Cui","doi":"10.1016/j.carbon.2025.120419","DOIUrl":null,"url":null,"abstract":"<div><div>Arsenite (As<sup>3+</sup>) contamination in water poses significant health risks, including cancer and cardiovascular diseases, demanding advanced detection technologies for effective management. Here, we introduce a dual-function graphene (DFG) sensor that operates as an ion-selective field-effect transistor (G-ISFET) for high-sensitivity arsenite detection and as an ion-selective electrode (G-ISE) for practical, potential long-term monitoring. Featuring an arsenite-selective membrane (As-ISM) with a specific ionophore, the sensor achieves sub-Nernstian sensitivities of 15 mV/decade (G-ISFET mode) and 17 mV/decade (G-ISE mode), along with a wide detection range (0.1 ppt–10 ppb) and a response time of 15 s. Field validation in lake, well, and tap water samples yielded recovery of 86%–122%, demonstrating robust real-world performance. By addressing key limitations of current technologies, this scalable, dual-mode sensor advances arsenite monitoring, supporting improved water quality and promoting better health outcomes in low-resource settings.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120419"},"PeriodicalIF":10.5000,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbon","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S000862232500435X","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Arsenite (As³⁺) contamination in water poses significant health risks, including cancer and cardiovascular diseases, demanding advanced detection technologies for effective management. Here, we introduce a dual-function graphene (DFG) sensor that operates as an ion-selective field-effect transistor (G-ISFET) for high-sensitivity arsenite detection and as an ion-selective electrode (G-ISE) for practical, potential long-term monitoring. Featuring an arsenite-selective membrane (As-ISM) with a specific ionophore, the sensor achieves sub-Nernstian sensitivities of 15 mV/decade (G-ISFET mode) and 17 mV/decade (G-ISE mode), along with a wide detection range (0.1 ppt–10 ppb) and a response time of 15 s. Field validation in lake, well, and tap water samples yielded recovery of 86%–122%, demonstrating robust real-world performance. By addressing key limitations of current technologies, this scalable, dual-mode sensor advances arsenite monitoring, supporting improved water quality and promoting better health outcomes in low-resource settings.

查看原文本刊更多论文

双功能石墨烯传感器作为离子敏感场效应晶体管和离子敏感电极用于亚砷酸盐检测

水中的亚砷酸盐（As3+）污染构成重大健康风险，包括癌症和心血管疾病，需要先进的检测技术进行有效管理。在这里，我们介绍了一种双功能石墨烯（DFG）传感器，它可以作为离子选择场效应晶体管（G-ISFET）用于高灵敏度的亚砷酸盐检测，也可以作为离子选择电极（G-ISE）用于实际的潜在长期监测。该传感器具有具有特定离子载体的亚砷酸盐选择膜（As-ISM），实现了15 mV/ 10年（G-ISFET模式）和17 mV/ 10年（G-ISE模式）的亚能斯特灵敏度，以及宽检测范围（0.1 ppt-10 ppb）和15 s的响应时间。在湖泊、井和自来水样品中进行了现场验证，回收率为86%-122%，在实际应用中表现出色。通过解决当前技术的主要限制，这种可扩展的双模式传感器推进了亚砷酸盐监测，支持改善水质，并在资源匮乏的环境中促进更好的健康结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.