J. Phys. Chem. B 2001, 105, 5323-5330
5323
Electrochemical Preparation and EPR Studies of Lithium Phthalocyanine. 3. Measurements of Oxygen Concentration in Tissues and Biochemical Reactions Govindasamy Ilangovan, Haiquan Li, Jay L. Zweier, and Periannan Kuppusamy* The EPR Center and DiVision of Cardiology, Department of Medicine, Johns Hopkins UniVersity, School of Medicine, 5501 Hopkins BayView Circle, Baltimore, Maryland 21224 ReceiVed: December 31, 2000
A systematic investigation of the preparation, characterization, and use of lithium phthalocyanine (LiPc) microcrystalline powder as a probe for electron paramagnetic resonance (EPR) oximetry applications has recently been initiated (Ilangovan et al. J. Phys. Chem. B 2000, 104, 4047-4059). Electrochemical preparation of LiPc under potentiostatic conditions (+0.4 V) yielded microcrystalline paramagnetic particles that showed extremely narrow (
