Highly sensitive and reusable ion-sensor based on functionalized graphene

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dc.creatorAna Paula Pereira Alves
dc.creatorLeonel Muniz Meireles
dc.creatorGustavo Arrighi Ferrari
dc.creatorThiago Henrique Rodrigues da Cunha
dc.creatorMariana Ogando Paraense
dc.creatorLeonardo Cristiano Campos
dc.creatorRodrigo Gribel Lacerda
dc.date.accessioned2025-02-23T17:30:08Z
dc.date.accessioned2025-09-08T23:49:57Z
dc.date.available2025-02-23T17:30:08Z
dc.date.issued2020
dc.identifier.doihttps://doi.org/10.1063/5.0009555
dc.identifier.issn1077-3118
dc.identifier.urihttps://hdl.handle.net/1843/80336
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofApplied Physics Letters
dc.rightsAcesso Restrito
dc.subjectTransistores
dc.subjectGrafeno
dc.subjectÍons
dc.subject.otherDoping
dc.subject.otherField effect transistors
dc.subject.otherGraphene
dc.subject.otherReference electrodes
dc.subject.otherIons and properties
dc.subject.otherElectrochemical sensors
dc.subject.otherAmino acid
dc.titleHighly sensitive and reusable ion-sensor based on functionalized graphene
dc.typeArtigo de periódico
local.citation.issue3
local.citation.volume117
local.description.resumoSome sub-products from the industrial activity are rich in metals, very often being highly toxic to human health and to the environment. Thus, the development of real-time and ultrasensitive techniques for metals detection is relevant. Herein, we report an ion-sensitive field-effect transistor (ISFET) based on l-phenylalanine functionalized graphene that detects Na+, Co2+, and Al3+ at the nanomolar range and Cu2+ at the picomolar range. Our sensor is prepared using a simple functionalization method and is reusable after a standard HCl cleaning process. Altogether, the ISFET is a promising device for real-time detection of metal ions at low concentrations.
local.identifier.orcidhttps://orcid.org/0000-0001-9242-0755
local.identifier.orcidhttps://orcid.org/0000-0001-6550-7804
local.identifier.orcidhttps://orcid.org/0000-0002-0824-5622
local.identifier.orcidhttps://orcid.org/0000-0001-6792-7554
local.identifier.orcidhttps://orcid.org/0000-0003-4777-7370
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.aip.org/aip/apl/article-abstract/117/3/033105/311908/Highly-sensitive-and-reusable-ion-sensor-based-on?redirectedFrom=fulltext

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