Determination of Nanoparticles Using Uv-Vis Spectra Publisher



Behzadi S¹ ; Ghasemi F² ; Ghalkhani M³ ; Ashkarran AA⁴ ; Akbari SM⁵ ; Pakpour S⁶ ; Hormozinezhad MR² ; Jamshidi Z⁷ ; Mirsadeghi S⁵ ; Dinarvand R^{5, 8} ; Atyabi F^{5, 8} ; Mahmoudi M^{5, 8, 9, 10}
Source: Nanoscale Published:2015

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. 10-7g 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. © The Royal Society of Chemistry 2015.