title: Supported bilayer lipid membranes modified with a phosphate ionophore.
abstract: This article reports the electrical responses of a phosphate ionophore, the cyclic polyamine 3-decyl-1,5,8-triazacyclodecane-2,4-dione (N3-cyclic amine) incorporated into metal supported bilayer lipid membranes (s-BLM). Teflon coated silver wire was used as a support. In a potentiometric mode, the ionophore had a response that was linearly related to the logarithm of HPO4(2-) concentration and was also dependant on pH. Selectivity coefficients for other anions compared to HPO4(2-) ions, determined by the separate solution method, fell within the range 1.73 x 10(-4) to 6.38 x 10(-2).
authors.affiliation: AgResearch, Grasslands Research Centre, Tennent Drive, Private Bag 11008, Palmerston North, New Zealand. Yan-Li.zhang@agresearch.co.nz
authors.forename: Yan Li
authors.initials: YL
authors.lastname: Zhang
authors.forename: James
authors.initials: J
authors.lastname: Dunlop
authors.forename: Thai
authors.initials: T
authors.lastname: Phung
authors.forename: Angelica
authors.initials: A
authors.lastname: Ottova
authors.forename: H T
authors.initials: HT
authors.lastname: Tien
mesh_terms: D000327:Adsorption; D015374:Biosensing Techniques / Q000379:methods*; D004563:Electrochemistry / Q000379:methods*; D006571:Heterocyclic Compounds / Q000032:analysis / Q000737:chemistry*; D008051:Lipid Bilayers / Q000737:chemistry*; D008832:Microchemistry / Q000379:methods*; D010710:Phosphates / Q000032:analysis* / Q000737:chemistry*
chemical_list: C091054:3-decyl-1,5,8-triazacyclodecane-2,4-dione; D006571:Heterocyclic Compounds; D008051:Lipid Bilayers; D010710:Phosphates