title: Hexametaphosphate-Capped Silica Mesoporous Nanoparticles Containing Cu(II) Complexes for the Selective and Sensitive Optical Detection of Hydrogen Sulfide in Water.
abstract: Cu(II) -macrocycle functionalized hexametaphosphate-capped silica mesoporous nanoparticles have been prepared and used for the selective and sensitive detection of hydrogen sulfide in aqueous environments. The possibility of using different metal complexes combined with different capping anions and choice of different dyes or other sensing molecules as indicators makes this new protocol highly appealing for the preparation of new sensing systems for sulfide detection in different environments.
authors.affiliation: Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universidad Politécnica de Valencia, Universidad de Valencia (Spain); Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022, Valencia (Spain); CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Dipartimento di Chimica, Università di Pavia via Taramelli 12, 27100 Pavia (Italy).
authors.forename: Sameh
authors.initials: S
authors.lastname: El Sayed
authors.forename: Michele
authors.initials: M
authors.lastname: Milani
authors.forename: Maurizio
authors.initials: M
authors.lastname: Licchelli
authors.forename: Ramón
authors.initials: R
authors.lastname: Martínez-Máñez
authors.forename: Félix
authors.initials: F
authors.lastname: Sancenón
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D006862:Hydrogen Sulfide / Q000032:analysis*; D053758:Nanoparticles / Q000737:chemistry / Q000648:ultrastructure; D010710:Phosphates / Q000737:chemistry*; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D014867:Water / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D056831:Coordination Complexes; D010710:Phosphates; D014874:Water Pollutants, Chemical; D014867:Water; C005035:hexametaphosphate; D012822:Silicon Dioxide; D003300:Copper; D006862:Hydrogen Sulfide
keywords: displacement reaction; gated materials; hydrogen sulfide; sensors; signal amplification