Orthogonal Chemical Functionalization of Au/SiO2/TiW Patterned Substrates
Macropatterned and micropatterned gold/silicon dioxide/titanium tungsten (Au/SiO2/TiW) substrates were orthogonally functionalized: three different molecules (monovalent silane, thiol, and phosphonic acid) were used to specifically form organolayers on Au, SiO2, or TiW areas of patterned substrates....
| Veröffentlicht in: | Langmuir : the ACS journal of surfaces and colloids. - 1992. - 36(2020), 49 vom: 15. Dez., Seite 14960-14966 |
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| Weitere Verfasser: | , , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2020
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| Zugriff auf das übergeordnete Werk: | Langmuir : the ACS journal of surfaces and colloids |
| Schlagworte: | Journal Article |
| Zusammenfassung: | Macropatterned and micropatterned gold/silicon dioxide/titanium tungsten (Au/SiO2/TiW) substrates were orthogonally functionalized: three different molecules (monovalent silane, thiol, and phosphonic acid) were used to specifically form organolayers on Au, SiO2, or TiW areas of patterned substrates. The orthogonality of the functionalization (i.e., selective grafting of thiol on Au, phosphonic acid on TiW, and silane on SiO2) was assessed by X-ray photoelectron spectroscopy (XPS), time-of-flight secondary ion mass spectrometry (ToF-SIMS), Fourier transform infrared spectroscopy (FTIR), and contact angle measurements. These results are especially promising for the selective anchoring of targets (e.g., biomolecules, nanoparticles, nanowires, nanotubes, or other nano-objects) onto patterned zones of multimaterial substrates, such as nanosensors or other nanodevices |
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| Beschreibung: | Date Revised 15.12.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
| ISSN: | 1520-5827 |
| DOI: | 10.1021/acs.langmuir.0c02263 |