title: A modified mesoporous silica optical nanosensor for selective monitoring of multiple analytes in water.
abstract: A new modified mesoporous silica nanosensor was synthesized by the co-condensation method. Under basic conditions, the obtained mesoporous silica nanosensor responds selectively to Fe(2+) (pH = 8) and Cu(2+) (pH = 12) with a distinguishable colour change perceivable by the naked eye and a detection limit of approximately 50 ppb.
authors.affiliation: Department of Polymer Science and Engineering, Pusan National University, Geumjeong-gu, Busan, 609-735, Korea. csha@pnu.edu.
authors.forename: Madhappan Santha
authors.initials: MS
authors.lastname: Moorthy
authors.forename: Hun-Jeong
authors.initials: HJ
authors.lastname: Cho
authors.forename: Eun-Jeong
authors.initials: EJ
authors.lastname: Yu
authors.forename: Young-Sik
authors.initials: YS
authors.lastname: Jung
authors.forename: Chang-Sik
authors.initials: CS
authors.lastname: Ha
mesh_terms: D003300:Copper / Q000032:analysis*; D007501:Iron / Q000032:analysis*; D057230:Limit of Detection; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D013053:Spectrophotometry / Q000379:methods; D014867:Water / Q000032:analysis*
chemical_list: D014867:Water; D012822:Silicon Dioxide; D003300:Copper; D007501:Iron