Steven D. Beyea, PhD. (UNB) Adjunct Professor

Research Officer
National Research Council Canada
Voice: (902) 473-1875
Fax: (902) 473-1851
steven.beyea@nrc-cnrc.gc.ca

Characterization of Biomaterials using Nuclear Magnetic Resonance

This research will focus on the use of NMR microscopy and diffusometry, as well as studies of NMR relaxation times of fluids in porous bioceramics.  The aim of this research is to increase the understanding of structure-transport relations for these materials.  Of particular interest are so-called “functionalized” bioceramics that contain a space varying microstructure, and have exhibited potential use as variable rate drug delivery implants.

Functional MR Imaging in Human Brains at 4 T

A major part of my research is the study of human brain function using MRI (fMRI).  A number of projects are currently underway including: the development of new fMRI methods for studying brain function in our 4 T Whole Body MRI system, integration of fMRI with simultaneous EEG measurements, and the use of arterial spin labelling (ASL) for studies of brain function in patients with temporal lobe epilepsy.  A number of highly interdisciplinary projects exist, with the potential to collaborate with a broad spectrum of scientists within the neuroscience and medical physics community.

SELECTED PUBLICATIONS:

S.D. Beyea, S.J. Glass, A.A. DiGiovanni and A. Caprihan  “Non-Destructive Characterization of Nanopore Microstructure: Space Resolved BET Isotherms using NMRI”  J. Appl. Phys., 94 (2), 935-941 (2003).

S.D. Beyea, S.L. Codd, D.O. Kuethe and E. Fukushima  “Studies of Porous Media by Thermally Polarized Gas NMR: Current Status”  Mag. Reson. Imaging 21 (3-4), pp. 201-205 (2003).

S.D. Beyea, B.J. Balcom, T.W. Bremner and R.L. Armstrong  "Detection of Microcracking in Drying Cementious Materials with Space Resolved 1H Nuclear Magnetic Resonance Relaxometry"  J. Am. Ceram. Soc., 86 (5), pp. 800-805 (2003).