title: Determination of nanoparticles using UV-Vis spectra.
abstract: Nanoparticles (NPs) are increasingly being used in different branches of science and in industrial applications; however, their rapid detection and characterization at low concentration levels have remained a challenge; more specifically, there is no single technique that can characterize the physicochemical properties of NPs (e.g. composition and size). In this work we have developed a colorimetric sensor array for defining the physicochemical properties of NPs in aqueous solution with ultra-low concentrations (e.g. 10(-7) g ml(-1) for gold NPs). Various NPs were readily identified using a standard chemometric approach (i.e. hierarchical clustering analysis), with no misclassifications over 400 trials.
authors.affiliation: Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
authors.forename: Shahed
authors.initials: S
authors.lastname: Behzadi
authors.forename: Forough
authors.initials: F
authors.lastname: Ghasemi
authors.forename: Masoumeh
authors.initials: M
authors.lastname: Ghalkhani
authors.forename: Ali Akbar
authors.initials: AA
authors.lastname: Ashkarran
authors.forename: Seyed Mostafa
authors.initials: SM
authors.lastname: Akbari
authors.forename: Sepideh
authors.initials: S
authors.lastname: Pakpour
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Hormozi-Nezhad
authors.forename: Zahra
authors.initials: Z
authors.lastname: Jamshidi
authors.forename: Somayyeh
authors.initials: S
authors.lastname: Mirsadeghi
authors.forename: Rassoul
authors.initials: R
authors.lastname: Dinarvand
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Atyabi
authors.forename: Morteza
authors.initials: M
authors.lastname: Mahmoudi