title: Magnetic resonance imaging of biological specimens by electron paramagnetic resonance of nitroxide spin labels.
abstract: Electron paramagnetic resonance imaging was demonstrated on two plant species, Apium graveolens and Coleus blumei. This was accomplished by soaking stems of these plants in the paramagnetic nitroxide imaging agent 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl. The experiments were accomplished at L-band frequency (1.4 to 1.9 gigahertz) with single-turn, flat-loop surface coils. One-dimensional imaging spectra were diagnostic of capillary structure and long-term stability.
authors.forename: J L
authors.initials: JL
authors.lastname: Berliner
authors.forename: H
authors.initials: H
authors.lastname: Fujii
mesh_terms: D003497:Cyclic N-Oxides; D004578:Electron Spin Resonance Spectroscopy; D010944:Plants / Q000033:anatomy & histology*; D013113:Spin Labels
chemical_list: D003497:Cyclic N-Oxides; D013113:Spin Labels; C001803:tempol