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- Title
SERS Activity of Silver Nanoparticles Functionalized with A Desferrioxamine B Derived Ligand for FE(III) Binding and Sensing.
- Authors
Galinetto, P.; Taglietti, A.; Pasotti, L.; Pallavicini, P.; Dacarro, G.; Giulotto, E.; Grandi, M.
- Abstract
We report the SERS activity of colloidal silver nanoparticles functionalized with a ligand, derived from the siderophore desferrioxamine B (desferal, DFO), an iron chelator widely used in biological and medical applications. The ligand was equipped with a sulfur-containing moiety to ensure optimal binding with silver surfaces. By means of Raman and SERS effects we monitored the route of material preparation from the modified DFO-S molecule to the colloidal aggregates. The results indicate that the functionalization of the chelating agent does not affect its binding ability towards Fe(III). The resulting functionalized silver nanoparticles are a promising SERS tag for operation in biological environments. The Fe-O stretching signature, arising when DFO-S grafted to silver nanoparticles binds Fe(III), could provide a tool for cation sensing in solution.
- Subjects
CHELATING agents; IRON chelates; METAL nanoparticles; COLLOIDAL silver; DUNNING-Kruger effect
- Publication
Journal of Applied Spectroscopy, 2016, Vol 82, Issue 6, p1052
- ISSN
0021-9037
- Publication type
Article
- DOI
10.1007/s10812-016-0228-y