title: Surface enhanced Raman scattering study of the antioxidant alkaloid boldine using prismatic silver nanoparticles.
abstract: Prismatic silver nanoparticles (PNps) were used in the surface enhanced Raman scattering (SERS) study of the antioxidant alkaloid boldine (5,6,6a,7-tetrahydro-1,10-dimethoxy-6-methyl-4H-dibenzo[de,g]quinoline-2,9-diol). Prismatic and quasi-spherical (QsNps) silver nanoparticles were synthesized and characterized by UV-Vis spectra, topographic profile (AFM) and zeta potential measurements. Raman and infrared (IR) spectra of the boldine were registered. Theoretical model calculations of the boldine onto the Ag surface predict a nearly coplanar orientation of the benzo[de]quinoline moiety and non-bonded interactions (electrostatic).
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile.
authors.forename: M A
authors.initials: MA
authors.lastname: Herrera
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile.
authors.forename: G P
authors.initials: GP
authors.lastname: Jara
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile.
authors.forename: R
authors.initials: R
authors.lastname: Villarroel
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile.
authors.forename: A E
authors.initials: AE
authors.lastname: Aliaga
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile.
authors.forename: J S
authors.initials: JS
authors.lastname: Gómez-Jeria
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile.
authors.forename: E
authors.initials: E
authors.lastname: Clavijo
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile.
authors.forename: C
authors.initials: C
authors.lastname: Garrido
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile.
authors.forename: T
authors.initials: T
authors.lastname: Aguayo
authors.affiliation: Universidad de Chile, Faculty of Sciences, PO Box 653, Santiago, Chile. Electronic address: facien05@uchile.cl.
authors.forename: M M
authors.initials: MM
authors.lastname: Campos Vallette
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D001060:Aporphines / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D008958:Models, Molecular; D012834:Silver / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods*
chemical_list: D000975:Antioxidants; D001060:Aporphines; D012834:Silver; C011686:boldine
keywords: Boldine; Extended Hückel Theory; Prismatic silver nanoparticles; Surface enhanced Raman scattering