title: Electrostatic Assembly of Functional and Macromolecular Ferricinium Chloride-Stabilized Gold Nanoparticles.
abstract: Substituted ferrocenes with various stereoelectronic effects including a ferrocene-terminated dendrimer in ether reduce aqueous HAuCl4to gold nanoparticles (AuNPs) by interfacial electron transfer. The dependence on the stirring speed plays a crucial role, and the stereoelectronic influences on the reaction rates are dramatic. With a ferrocene-containing polymer, the reaction is conducted using an homogeneous THF/water medium, also forming AuNPs. Fully stable functional, dendritic and polymeric ferricinium chloride-stabilized AuNPs are obtained with core sizes between 13 and 35 nm, an optimal size range for potential biomedical applications. Finally the ferricinium coating of the Au nanoparticles is replaced by a more electron-rich ferricinium derivative by exergonic redox reaction with the corresponding ferrocene derivative.
authors.affiliation: ISM, UMR 5255, University of Bordeaux , Talence 33405 Cedex, France.|Facultad de Quimica, Universidad del Pais Vasco , Apdo 1072, 20080 San Sebastian, Spain.
authors.forename: Roberto
authors.initials: R
authors.lastname: Ciganda
authors.affiliation: Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University , Chengdu 610065, P. R. China.
authors.forename: Haibin
authors.initials: H
authors.lastname: Gu
authors.affiliation: Facultad de Quimica, Universidad del Pais Vasco , Apdo 1072, 20080 San Sebastian, Spain.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Hernandez
authors.affiliation: CICbiomaGUNE Unidad Biosupeficies , Paseo Miramon 182 Edif C, 20009 San Sebastian, Spain.
authors.forename: Ane
authors.initials: A
authors.lastname: Escobar
authors.affiliation: CICbiomaGUNE Unidad Biosupeficies , Paseo Miramon 182 Edif C, 20009 San Sebastian, Spain.
authors.forename: Angel
authors.initials: A
authors.lastname: Martínez
authors.affiliation: CICbiomaGUNE Unidad Biosupeficies , Paseo Miramon 182 Edif C, 20009 San Sebastian, Spain.
authors.forename: Luis
authors.identifier: http://orcid.org/0000-0002-0411-4932
authors.initials: L
authors.lastname: Yates
authors.affiliation: CICbiomaGUNE Unidad Biosupeficies , Paseo Miramon 182 Edif C, 20009 San Sebastian, Spain.
authors.forename: Sergio
authors.identifier: http://orcid.org/0000-0002-7174-1960
authors.initials: S
authors.lastname: Moya
authors.affiliation: ISM, UMR 5255, University of Bordeaux , Talence 33405 Cedex, France.
authors.forename: Jaime
authors.initials: J
authors.lastname: Ruiz
authors.affiliation: ISM, UMR 5255, University of Bordeaux , Talence 33405 Cedex, France.
authors.forename: Didier
authors.identifier: http://orcid.org/0000-0001-6446-8751
authors.initials: D
authors.lastname: Astruc