title: Resonance scattering detection of trace melamine using aptamer-modified nanosilver probe as catalyst without separation of its aggregations.
abstract: Nanosilver was modified by aptamer (ssDNA) to obtain a resonance scattering (RS) probe (AgssDNA) for melamine (MA). Based on the catalytic effect of the probe on the Fehling particle reaction, a nanocatalytic RS assay is proposed for the determination of 0.02-1.06 μg L(-1) MA.
authors.affiliation: Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin 541004, P. R. China. zljiang@mailbox.gxnu.edu.cn
authors.forename: Zhiliang
authors.initials: Z
authors.lastname: Jiang
authors.forename: Lianping
authors.initials: L
authors.lastname: Zhou
authors.forename: Aihui
authors.initials: A
authors.lastname: Liang
mesh_terms: D052157:Aptamers, Nucleotide / Q000737:chemistry*; D002384:Catalysis; D053768:Metal Nanoparticles / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*; D014227:Triazines / Q000032:analysis*
chemical_list: D052157:Aptamers, Nucleotide; D014227:Triazines; D012834:Silver; C011907:melamine