Graphene Biosensors Operated in DC Transistor and AC Electrochemical Modes for DNA Sensing

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorInternational Iberian Nanotechnology Laboratory-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Do Minho-
Autor(es): dc.creatorPinzon, Edgar-
Autor(es): dc.creatorDomingues, Telma-
Autor(es): dc.creatorWrege, Rodrigo-
Autor(es): dc.creatorLopes, Lais C.-
Autor(es): dc.creatorBorme, Jerome-
Autor(es): dc.creatorDaros, Thiago-
Autor(es): dc.creatorPiteira, Joao-
Autor(es): dc.creatorCosta, Bruno M.-
Autor(es): dc.creatorBueno, Paulo R.-
Autor(es): dc.creatorAlpuim, Pedro-
Data de aceite: dc.date.accessioned2025-08-21T23:01:02Z-
Data de disponibilização: dc.date.available2025-08-21T23:01:02Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2022-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1109/SENSORS56945.2023.10324951-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/297681-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/297681-
Descrição: dc.descriptionGraphene is considered for different technological applications, particularly biosensing, due to its unique electrical and electronic properties, such as its ambipolar transport and ballistic electron dynamics. Thus, graphene-based setups that allow fast and simple access to its quantum properties are required to advance in the design of high-performance devices. Non-destructive methodologies based on small electrical perturbations offer the possibility of accessing graphene's electronic structure (V-shaped DOS) in mild experimental conditions. Here, we present a device comprising 20 graphene functionalized channels per chip operated in two modes: a 3-terminal DC transistor and a 2-terminal AC electrochemical setup. Both setups resolved the graphene electronic structure, used as a transduction signal to detect four brain tumor single-stranded DNA biomarkers with a single genetic mutation. The device detected the four cancer biomarkers in the attomolar range (∼ 10 aM) in DC transistor mode. A detection limit of 1 aM was achieved in the AC electrochemical mode for the DNA mutation studied. We present a CMOS integrated circuit for fast readout of the multiplexed graphene sensor arrays.-
Descrição: dc.descriptionInternational Iberian Nanotechnology Laboratory-
Descrição: dc.descriptionInstituto de Química Universidade Estadual Paulista-
Descrição: dc.descriptionCentro de Física das Universidades Do Minho e Porto Universidade Do Minho-
Descrição: dc.descriptionInstituto de Investigacao em Ciencias da Vida e da Saude Escola de Medicina Universidade Do Minho-
Descrição: dc.descriptionInstituto de Química Universidade Estadual Paulista-
Idioma: dc.languageen-
Relação: dc.relationProceedings of IEEE Sensors-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbiosensor-
Palavras-chave: dc.subjectCMOS-
Palavras-chave: dc.subjectGraphene-
Palavras-chave: dc.subjectquantum capacitance-
Título: dc.titleGraphene Biosensors Operated in DC Transistor and AC Electrochemical Modes for DNA Sensing-
Tipo de arquivo: dc.typeaula digital-
Aparece nas coleções:Repositório Institucional - Unesp

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