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"Clickable" graphene nanoribbons for biosensor interfaces.
Hasler, Roger; Fenoy, Gonzalo E; Götz, Alicia; Montes-García, Verónica; Valentini, Cataldo; Qiu, Zijie; Kleber, Christoph; Samorì, Paolo; Müllen, Klaus; Knoll, Wolfgang.
Afiliación
  • Hasler R; AIT Austrian Institute of Technology GmbH, 3430 Tulln, Austria.
  • Fenoy GE; Laboratory for Life Sciences and Technology (LiST), Faculty of Medicine and Dentistry, Danube Private University, 3500 Krems, Austria. wolfgang.knoll@dp-uni.ac.at.
  • Götz A; AIT Austrian Institute of Technology GmbH, 3430 Tulln, Austria.
  • Montes-García V; Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata B1904DPI, Argentina.
  • Valentini C; Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
  • Qiu Z; Université de Strasbourg, CNRS, Institut de Science et d'Ingénierie Supramoléculaires, 8 allée Gaspard Monge, 67000 Strasbourg, France.
  • Kleber C; Université de Strasbourg, CNRS, Institut de Science et d'Ingénierie Supramoléculaires, 8 allée Gaspard Monge, 67000 Strasbourg, France.
  • Samorì P; Centre for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland.
  • Müllen K; Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
  • Knoll W; School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong 518172, P. R. China.
Nanoscale Horiz ; 9(4): 598-608, 2024 03 25.
Article en En | MEDLINE | ID: mdl-38385442
ABSTRACT
We report on the synthesis of "clickable" graphene nanoribbons (GNRs) and their application as a versatile interface for electrochemical biosensors. GNRs are successfully deposited on gold-coated working electrodes and serve as a platform for the covalent anchoring of a bioreceptor (i.e., a DNA aptamer), enabling selective and sensitive detection of Interleukin 6 (IL6). Moreover, when applied as the intermediate linker on reduced graphene oxide (rGO)-based field-effect transistors (FETs), the GNRs provide improved robustness compared to conventional aromatic bi-functional linker molecules. GNRs enable an orthogonal and covalent attachment of a recognition unit with a considerably higher probe density than previously established methods. Interestingly, we demonstrate that GNRs introduce photoluminescence (PL) when applied to rGO-based FETs, paving the way toward the simultaneous optical and electronic probing of the attached biointerface.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Técnicas Biosensibles / Nanotubos de Carbono / Grafito Idioma: En Revista: Nanoscale Horiz Año: 2024 Tipo del documento: Article País de afiliación: Austria Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Técnicas Biosensibles / Nanotubos de Carbono / Grafito Idioma: En Revista: Nanoscale Horiz Año: 2024 Tipo del documento: Article País de afiliación: Austria Pais de publicación: Reino Unido