title: Effect of plant-based phenol derivatives on the formation of Cu and Ag nanoparticles.
abstract: The complexes formed on the reaction of various metal ions viz., Cu(II) and Cu(I) with phenol derivatives viz. catechol, chlorogenic acid (CGA), hydroquinone and n-propyl gallate (nPG) were established by UV-visible spectroscopy. The metal/ligand complexing ratio and complexation constants have been determined. Further, we showed that nanoparticles of Cu can be prepared from metal-phenol complexes in the presence of a protein (gelatin) by γ-irradiation showing that the reduction is metal ion centered. Formation of Ag nanoparticles was also observed on photo-irradiation with xenon lamp in the presence of dihydroxy benzene. The Ag and Cu nanoparticles were characterized by transmission electron microscopy (TEM) and UV-visible absorption spectroscopy. TEM technique showed the presence of Cu and Ag nanoparticles with average size of 20 and 30 nm, respectively.
authors.affiliation: Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India.
authors.forename: Jasmine A
authors.initials: JA
authors.lastname: Jacob
authors.forename: Nandita
authors.initials: N
authors.lastname: Biswas
authors.forename: Tulsi
authors.initials: T
authors.lastname: Mukherjee
authors.forename: Sudhir
authors.initials: S
authors.lastname: Kapoor
mesh_terms: D002396:Catechols / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D007700:Kinetics; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D019800:Phenol / Q000737:chemistry*; D010944:Plants / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D014867:Water / Q000737:chemistry
chemical_list: D002396:Catechols; D014867:Water; D019800:Phenol; D012834:Silver; D003300:Copper; C034221:catechol