title: A multi-ion particle sensor.
abstract: The first sub-micron polyacrylic sensor containing two independent ion-sensing systems is shown, that uses a single excitation wavelength and separates signals by using quantum dot donors to form FRET pairs with other fluorophores.
authors.affiliation: Institute of Biotechnology, University of Cambridge, Tennis Court Road, Cambridge, UK.
authors.forename: Maria Jose
authors.initials: MJ
authors.lastname: Ruedas-Rama
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Wang
authors.forename: Elizabeth A H
authors.initials: EA
authors.lastname: Hall
mesh_terms: D031541:Fluorescence Resonance Energy Transfer / Q000379:methods*; D005456:Fluorescent Dyes / Q000737:chemistry*; D007477:Ions / Q000032:analysis; D008832:Microchemistry / Q000379:methods*; D045663:Quantum Dots
chemical_list: D005456:Fluorescent Dyes; D007477:Ions