This paper describes the use of chemical cross-linking of ultrathin inorganic nanowires; as a bottom-up strategy for nanostructure fabrication as well as a chemical detection platform. Nanowire microfibers are produced by spinning a nanowire dispersion into a cross-linker solution at room temperature. Nanomembranes with thicknesses down to 50 nm were obtained by injecting the nanowire dispersion at the crosslinker-solution/air interface. Furthermore, the sensitivity of the nanowire to amine cross-linkers allowed development of a novel sensing platform for small molecules, like the neurotransmitter serotonin, with detection limits in the picomolar regime.

Cross-Linking Bi2S3 Ultrathin Nanowires: A Platform for Nanostructure Formation and Biomolecule Detection / Cademartiri, L; Scotognella, F; O'Brien, PG; Lotsch, BV; Thomson, J; Petrov, S; Kherani, NP; Ozin, GA. - In: NANO LETTERS. - ISSN 1530-6984. - 9:4(2009), pp. 1482-1486. [10.1021/nl803417v]

Cross-Linking Bi2S3 Ultrathin Nanowires: A Platform for Nanostructure Formation and Biomolecule Detection

Cademartiri L;
2009

Abstract

This paper describes the use of chemical cross-linking of ultrathin inorganic nanowires; as a bottom-up strategy for nanostructure fabrication as well as a chemical detection platform. Nanowire microfibers are produced by spinning a nanowire dispersion into a cross-linker solution at room temperature. Nanomembranes with thicknesses down to 50 nm were obtained by injecting the nanowire dispersion at the crosslinker-solution/air interface. Furthermore, the sensitivity of the nanowire to amine cross-linkers allowed development of a novel sensing platform for small molecules, like the neurotransmitter serotonin, with detection limits in the picomolar regime.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2874693
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