Orthogonal chemical functionalization of patterned Au/TiW substrate for selective immobilization of nanoparticles
| Autor: | Christelle Yeromonahos, Virginie Monnier, Stephane Monfray, Yann Chevolot, Didier Léonard, Jean-Pierre Cloarec, Jian Zhang, Thomas Gehin, Radoslaw Mazurczyk |
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| Přispěvatelé: | INL - Chimie et Nanobiotechnologies (INL - C&N), Institut des Nanotechnologies de Lyon (INL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-École Centrale de Lyon (ECL), Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE), Surfaces, Institut des Sciences Analytiques (ISA), Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), INL - Plateforme Technologique Nanolyon (INL - Nanolyon), STMicroelectronics [Crolles] (ST-CROLLES) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
chemistry.chemical_element Nanoparticle Bioengineering Nanotechnology 02 engineering and technology Substrate (electronics) Tungsten 010402 general chemistry 01 natural sciences nanoelectronics X-ray photoelectron spectroscopy General Materials Science Electrical and Electronic Engineering TiW surface functionalization Mechanical Engineering orthogonal chemical functionalization General Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology titanium tungsten 0104 chemical sciences Secondary ion mass spectrometry chemistry Nanoelectronics Mechanics of Materials Surface modification nanoparticles 0210 nano-technology [CHIM.OTHE]Chemical Sciences/Other Titanium |
| Zdroj: | Nanotechnology Nanotechnology, Institute of Physics, 2019, 30 (32), pp.325601. ⟨10.1088/1361-6528/ab1556⟩ |
| ISSN: | 0957-4484 1361-6528 |
| DOI: | 10.1088/1361-6528/ab1556⟩ |
| Popis: | International audience; A current evolution of nanobiosensors stresses the interest of multi-material nanopatterned surfaces, for enhancing sensing performances. Besides, titanium tungsten (TiW) is mastered routinely implemented in nanoelectronic devices, in a reproducible way and at industrial production scales. Such material may be envisioned for being used in (bio)chemical nanoelectronic sensors, but the surface functionalization of such material has still to be studied. In the present article, orthogonal chemical functionalization of patterned Au on titanium tungsten (TiW) substrates have been explored for the first time to our knowledge. Surface functionalizations were assessed by X-ray photoelectron spectroscopy (XPS), polarization modulation infrared reflection-absorption spectroscopy (PMIRRAS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging. Au/TiW patterned substrates were functionalized with mercapto-undecamine. Thanks to the orthogonality of thiol/Au versus phosphonic acid/TiW reactions, only Au features were modified leading to the amine derivatized surface. It allowed localizing carboxy-functionalized nanoparticles by electrostatic interaction on Au with a selectivity above 10 compared to TiW. |
| Databáze: | OpenAIRE |
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