Magnetic Resonance Imaging of Biological Specimens by Electron Paramagnetic Resonance of Nitroxide Spin Labels

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...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 1985-02, Vol.227 (4686), p.517-519
Hauptverfasser:	Berliner, Lawrence J., Fujii, Hirotada
Format:	Artikel
Sprache:	eng
Schlagworte:	Blood vessels Capillaries Celery Coleus Cyclic N-Oxides Electron paramagnetic resonance Electron paramagnetic resonance spectroscopy Electron Spin Resonance Spectroscopy Imaging Imaging systems Magnetic fields Magnetic resonance Microwaves Plants - anatomy & histology Spin Labels
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Beschreibung
Zusammenfassung:	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.
ISSN:	0036-8075 1095-9203
DOI:	10.1126/science.2981437