title: Real-space imaging of macroscopic diffusion and slow flow by singlet tagging MRI.
abstract: Magnetic resonance imaging can be used to study motional processes such as flow and diffusion, but the accessible timescales are limited by longitudinal relaxation. The spatially selective conversion from magnetization to long-lived singlet order in designer molecules makes it possible to tag a region of interest for an extended period of time, of the order of several minutes. Here we exploit this concept of "singlet tagging" to monitor diffusion over a macroscopic scale as well as very slow flow.
authors.affiliation: School of Chemistry, University of Southampton, SO17 1BJ Southampton, UK. Electronic address: g.pileio@soton.ac.uk.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Pileio
authors.affiliation: School of Chemistry, University of Southampton, SO17 1BJ Southampton, UK; Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France.
authors.forename: Jean-Nicolas
authors.initials: JN
authors.lastname: Dumez
authors.affiliation: School of Chemistry, University of Southampton, SO17 1BJ Southampton, UK.
authors.forename: Ionut-Alexandru
authors.initials: IA
authors.lastname: Pop
authors.affiliation: School of Chemistry, University of Southampton, SO17 1BJ Southampton, UK.
authors.forename: Joseph T
authors.initials: JT
authors.lastname: Hill-Cousins
authors.affiliation: School of Chemistry, University of Southampton, SO17 1BJ Southampton, UK.
authors.forename: Richard C D
authors.initials: RC
authors.lastname: Brown
keywords: Diffusion; Flow; Long-lived states; Magnetic resonance imaging; Tagging