title: A selective metabolite array for the detection of phosphometabolites.
abstract: Immobilised metal ion affinity (IMA) has been traditionally used specifically for the separation of phosphorylated proteins and nucleic acids, in proteomics and genomics, respectively. This report describes the novel application of IMA in metabolomics for the development of metabolite arrays to detect phosphometabolites using a plasma polymer-modified surface. Immobilisation of gallium, zirconium, cobalt, copper, zinc, nickel, iron, and chromium to acrylic acid plasma polymer followed by subsequent exposure to metabolites (phospho- and non-phosphometabolites) was investigated. Results analysed using ToF-SIMS suggests that gallium and zirconium exhibit higher phosphometabolite affinity and specificity compared to other metals, and can be used to develop metabolite arrays for the detection of phosphometabolites.
authors.affiliation: ChELSI Institute, Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, UK.
authors.forename: Malinda
authors.initials: M
authors.lastname: Salim
authors.forename: Gregory J S
authors.initials: GJ
authors.lastname: Fowler
authors.forename: Phillip C
authors.initials: PC
authors.lastname: Wright
authors.forename: Seetharaman
authors.initials: S
authors.lastname: Vaidyanathan
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D000327:Adsorption; D040761:Biomimetic Materials / Q000032:analysis*; D005708:Gallium / Q000737:chemistry*; D055442:Metabolome; D055432:Metabolomics / Q000379:methods*; D010755:Organophosphates / Q000032:analysis*; D058626:Plasma Gases; D025341:Principal Component Analysis; D012996:Solutions; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D015040:Zirconium / Q000737:chemistry*
chemical_list: D000180:Acrylic Resins; D010755:Organophosphates; D058626:Plasma Gases; D012996:Solutions; C006903:carbopol 940; D015040:Zirconium; D005708:Gallium